Wildguzzi.com

General Category => Bike Builds, Rebuilds And Restorations Only => Topic started by: Dave Swanson on November 18, 2023, 03:43:42 PM

Title: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 18, 2023, 03:43:42 PM
This will be a Cliff Notes version of a build thread.  I will hit the highlights as I work my way through this bike to make it reliable and roadworthy again. 

This bike came from the estate of Bob Farris, a local long time Guzzi enthusiast.  He was the Illinois state rep for MGNOC years ago and traveled to Europe for the 75th Guzzi anniversary.

The bike hadn't seen the light of day for 25 years or more, and was one of the Eldos that really caught my eye when I would stop by to visit. 

I feel lucky to have the opportunity to have one of Bob's Loops.  It will not be given a total restoration, but will be spruced up and refreshed where necessary. 

The day I brought it home - August 12th, 2023.

(https://i.postimg.cc/dQLnSyLh/IMG-1471-2.jpg) (https://postimg.cc/9zHGDzP2)

Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 18, 2023, 04:07:26 PM
Current state.

(https://i.postimg.cc/85g1HQT8/thumbnail-IMG-2124.jpg) (https://postimg.cc/8FwQpYFw)
Title: Re: 1974 Police Eldo Rejuvination
Post by: kballowe on November 19, 2023, 08:08:57 AM

(https://i.ibb.co/Czftkrw/omg-baby.jpg) (https://ibb.co/Czftkrw)
Title: Re: 1974 Police Eldo Rejuvination
Post by: vintagehoarder on November 19, 2023, 08:30:08 AM
Nice piece good luck!
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 19, 2023, 10:06:00 AM
All the tins, which I believe to be original paint, polished up well after lots of elbow grease.

(https://i.postimg.cc/dtmKdPd7/thumbnail-IMG-2058.jpg) (https://postimg.cc/zVBMZQx5)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 19, 2023, 02:37:27 PM
Upon teardown and inspection it became obvious why Bob parked this so long ago.

(https://i.postimg.cc/VkSmPL6Q/thumbnail-IMG-2123.jpg) (https://postimg.cc/k2dkxCKf)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 19, 2023, 09:55:21 PM
I am very pleased with how the OG mufflers cleaned up.

(https://i.postimg.cc/L60qZbPM/thumbnail-IMG-2065.jpg) (https://postimg.cc/zVKDsppd)

(https://i.postimg.cc/BQvLb0Xg/thumbnail-IMG-2063.jpg) (https://postimg.cc/mh02pK3z)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Sprouty115 on November 21, 2023, 08:15:23 AM
I'm in!
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 23, 2023, 07:03:13 AM
The generator mount threaded holes were in bad shape so I opted for a helicoil repair.

(https://i.postimg.cc/sxZPYqpN/thumbnail-IMG-2157.jpg) (https://postimg.cc/BP41sh7T)

(https://i.postimg.cc/z3ZC077X/thumbnail-IMG-2159.jpg) (https://postimg.cc/4HPH3zjr)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 25, 2023, 02:05:29 PM
I was able to upgrade my police lighting with the help of Moto Guzzi Classics.  Thanks Mark

NIB Grote spot lamps (5 3/4"), and police turn signals.  Fronts are dual sided.  One side amber, the other side red.

(https://i.postimg.cc/HLt8ySm0/thumbnail-IMG-2172.jpg) (https://postimg.cc/8FjC8mjs)

(https://i.postimg.cc/RFV6QcCk/thumbnail-IMG-2173.jpg) (https://postimg.cc/KKw8m3Mf)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Cam3512 on November 25, 2023, 04:45:08 PM
Count me in!

Cam
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 26, 2023, 10:26:37 AM
Due to the last ride this bike had with one of the rods hammering away many moons agp, at the very least the crank was in need of a re-grind.   

(https://i.postimg.cc/VkSmPL6Q/thumbnail-IMG-2123.jpg) (https://postimg.cc/k2dkxCKf)

While commiserating with Joe Walano (The Guzzi Doctor) he offered a complete bottom end that was donated to him years ago from a crashed Eldo!  Never one to look a gift horse in the mouth I immediately accepted his gracious offer and drove the 100 miles to his shop to pick it up.  Joe is in the process of moving his shop and is culling what he doesn't want to move to the new place, therefore perfect timing for the both of us. 

Upon tear-down of this donor engine I found the bottom end to be in fine shape.  The crank is on it's standard grind.  The main bearings are in great shape, and the shell bearings are almost usable.  A gracious and generous gift to the project indeed.   :bow:

(https://i.postimg.cc/CMP0K9ZC/thumbnail-IMG-2133.jpg) (https://postimg.cc/s1hq6641)
Title: Re: 1974 Police Eldo Rejuvination
Post by: brider on November 27, 2023, 06:18:43 PM
It will not be given a total restoration, but will be spruced up and refreshed where necessary. 

That's quite a "spruce up". I'd hate to see what you charge for a total resto.  :thumb:

I wonder if that's the same Eldo I saw Bob ride to the MO rally back in '95-'97? Great job so far. I wonder how that low-end bearing failed? I didn't know they were prone to that...how many miles? Chrome cyls?
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 27, 2023, 10:14:11 PM
That's quite a "spruce up". I'd hate to see what you charge for a total resto.  :thumb:

I wonder if that's the same Eldo I saw Bob ride to the MO rally back in '95-'97? Great job so far. I wonder how that low-end bearing failed? I didn't know they were prone to that...how many miles? Chrome cyls?

The speedo shows 35K.   It could be the bike he rode to the rally back then.  No one around here can remember Bob riding it for the past 25 years, so the time frame lines up. 

It did have chrome cylinders, but no evidence of chrome contamination.  The likely culprit would seem to be oil starvation, but I haven't found the smoking gun. 

The spruce up is now out the window.  Ha!  But, all the tins will retain the original paint, so will not be a total restoration.   :grin:
Title: Re: 1974 Police Eldo Rejuvination
Post by: brider on November 29, 2023, 07:55:14 AM
So I wonder what Bob's opinion was of riding on chrome cyls? I know there are opinions that run the full range of "kiss of death for the engine at first start-up" to "anecdotes of flaking chrome far exaggerate the reality", so maybe he just figured it wasn't worth NOT riding the bike for. I wonder myself because I have an old Ambo with good chrome cyls, and wonder if I should get it running as-is.

One of the phrases I remember Bob saying when I looked at his stable (considering buying an Eldo, passed because it had Amal carbs.....what a dummy!), and commented on the nice (non-chrome) patina of most of his bikes was "Chrome don't git ya home".
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 29, 2023, 08:54:19 AM
So I wonder what Bob's opinion was of riding on chrome cyls? I know there are opinions that run the full range of "kiss of death for the engine at first start-up" to "anecdotes of flaking chrome far exaggerate the reality", so maybe he just figured it wasn't worth NOT riding the bike for. I wonder myself because I have an old Ambo with good chrome cyls, and wonder if I should get it running as-is.

One of the phrases I remember Bob saying when I looked at his stable (considering buying an Eldo, passed because it had Amal carbs.....what a dummy!), and commented on the nice (non-chrome) patina of most of his bikes was "Chrome don't git ya home".

It could be close to 30 years ago that this bike was parked up after its last ride.  If Bob had gotten it running again 10 or 20 years ago without changing the cylinders it would have certainly met it's demise.  BTW Bob did have a set of new Gilardonis set aside for one of the Eldos. 

The worst possible scenario for chrome cylinders is a long period of non use.  Today there is NEVER a good reason to run the chrome cylinders unless you want to destroy the engine for some reason.  With the old chrome cylinders it is not a question of if they will fail, only when

My Amal Eldo.   :laugh:

(https://i.postimg.cc/wvTT74Bg/991-3.jpg) (https://postimg.cc/mcJGnwM5)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Antietam Classic Cycle on November 29, 2023, 08:09:57 PM
The worst possible scenario for chrome cylinders is a long period of non use.  Today there is NEVER a good reason to run the chrome cylinders unless you want to destroy the engine for some reason.  With the old chrome cylinders it is not a question of if they will fail, only when

 :thumb: :thumb:
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 29, 2023, 08:52:11 PM
I wonder myself because I have an old Ambo with good chrome cyls, and wonder if I should get it running as-is.


And there is no such thing as good chrome cylinders.   :grin:
Title: Re: 1974 Police Eldo Rejuvination
Post by: Antietam Classic Cycle on November 30, 2023, 08:33:24 AM
And there is no such thing as good chrome cylinders.   :grin:

I agree 100%.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 30, 2023, 10:08:20 AM
The rotor was well above the minimum thickness requirement so off it went to TrueDisk 

Great workmanship, super fast turnaround, and the price can't be beat - $50

(https://i.postimg.cc/fLMkJCX4/thumbnail-IMG-2186.jpg) (https://postimg.cc/2qXCt42T)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 01, 2023, 12:39:50 PM
The wheels were too crusty to leave alone so they were taken apart and cleaned up.  Truing next.

(https://i.postimg.cc/02J8gC80/thumbnail-IMG-2192.jpg) (https://postimg.cc/w7gKLLR1)

(https://i.postimg.cc/g2FGG6jF/thumbnail-IMG-2195.jpg) (https://postimg.cc/F7ZMZz0D)
Title: Re: 1974 Police Eldo Rejuvination
Post by: spmoto on December 04, 2023, 05:29:04 PM
Found this thread just as we were hit with our first snowstorm of the year. Perfect timing. Kinda wish I had scooped up a project bike. Living vicariously isn't bad though, and it's cheaper. Great work Dave, and super photography. What are you using for a camera?
SM
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 04, 2023, 10:27:20 PM
Found this thread just as we were hit with our first snowstorm of the year. Perfect timing. Kinda wish I had scooped up a project bike. Living vicariously isn't bad though, and it's cheaper. Great work Dave, and super photography. What are you using for a camera?
SM

Thanks.  Glad I can be of assistance.  :grin:

My IPhone 14 Pro's camera is so good I rarely take the good camera out of the bag. 
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 04, 2023, 10:29:01 PM
Trued, new rubber, and  balanced.  Aahh!  I always love having the wheels finished.  Its a good milestone.

(https://i.postimg.cc/j5M9qDs6/thumbnail-IMG-2209.jpg) (https://postimg.cc/34D9nJ0W)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 08, 2023, 09:21:18 AM
New Gilardonis going in.

(https://i.postimg.cc/VLpBgGbj/thumbnail-IMG-2216.jpg) (https://postimg.cc/GHPyhjK2)
Title: Re: 1974 Police Eldo Rejuvination
Post by: bigbikerrick on December 08, 2023, 01:46:07 PM
Very nice, Dave! What brand tires are those? Are they tubeless?
Rick.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 08, 2023, 01:58:41 PM
Very nice, Dave! What brand tires are those? Are they tubeless?
Rick.

Those are Heidenau  K34.  I did not seal the rims therefore they have inner tubes. 
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 09, 2023, 01:25:42 PM
New timing chain and upgraded chain tensioner.

(https://i.postimg.cc/prnqvYRg/thumbnail-IMG-2223.jpg) (https://postimg.cc/YLM1fF43)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Pescatore on December 09, 2023, 01:51:33 PM
I wish I were a fly on the wall, right next to long beard dude.
Impressive attention to details.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 11, 2023, 05:18:41 PM
Forks are ready for assembly.  New Wirth progressive springs, dampers, and seals.  Should ride nice.

(https://i.postimg.cc/3w8JZxtz/thumbnail-IMG-2238.jpg) (https://postimg.cc/nXWJFpb1)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 15, 2023, 11:10:56 AM
The pace will pick up now.

(https://i.postimg.cc/B6CxH1zk/thumbnail-IMG-2253.jpg) (https://postimg.cc/0MbMqrP0)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Huzo on December 15, 2023, 01:00:27 PM
New timing chain and upgraded chain tensioner.

(https://i.postimg.cc/prnqvYRg/thumbnail-IMG-2223.jpg) (https://postimg.cc/YLM1fF43)
That bend in the tensioner spring is where my Norge one broke David.
I got a new one made 7 mm longer
(https://i.ibb.co/LNRJ8Pm/IMG-4575.png) (https://ibb.co/LNRJ8Pm)
 and relieved the case to remove the bending.
(https://i.ibb.co/2PknN7q/IMG-4574.png) (https://ibb.co/2PknN7q)

I’m sure it’s worth it…. :clock:
Also, is that retaining nut on the tensioner pivot pin, adequately in safety ?
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 15, 2023, 05:39:52 PM
Thanks for the wise advise Huzo.  I used red Loctite on the nut, but am leaving the stock spring intact.  Your solution is superior for sure. 
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 16, 2023, 03:26:02 PM
I enjoy this stage.

(https://i.postimg.cc/RCpvVKxN/thumbnail-IMG-2262.jpg) (https://postimg.cc/vDnJ01Bs)

(https://i.postimg.cc/FsfNfzhG/thumbnail-IMG-2261.jpg) (https://postimg.cc/4mTrqJ7h)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 18, 2023, 09:21:01 AM
I hadn't looked very close at the final drive until last week.  The spline teeth are definitely sharpish!  After a consult with Charlie he forwarded a final drive that was for sale on eBay by Mark of Moto Guzzi Classics.  I called Mark and went for the deal he offered.  I was very happy to get it and will be plug and play which is nice, but it is a decent sized hit to the restoration budget.  These days, good Eldo final drives don't fall off the turnip truck everyday.


(https://i.postimg.cc/xC4qprZn/thumbnail-IMG-2243.jpg) (https://postimg.cc/CBbFd2YQ)

Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 24, 2023, 03:36:29 PM
I was relieved that the 5 speed checked out. 

But the heads were not as good, the valve guides were sloppy.  Since I haven't collected all the specialized tooling to overhaul my own Guzzi heads I dropped the heads off with new valves, guides and keepers at The Guzzi Doctor, Joe Walano.  I should have the heads back next week.

I also upgraded the clutch to the "deep spline" setup.  This should last well into the next owners lifetime.   :wink:

Here I am installing the pushrod oring seals that Charlie gave me.  I'm almost out Charlie!   :grin:

(https://i.postimg.cc/TP8BqvD8/thumbnail-IMG-2299.jpg) (https://postimg.cc/SnrZk5dV)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 27, 2023, 04:13:49 PM
Heads are back from The Guzzi Doctor.  Ready to rock and roll now.

(https://i.postimg.cc/90D4vSJt/thumbnail-IMG-2309.jpg) (https://postimg.cc/tnHC6r0Y)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 29, 2023, 08:34:41 AM
As pretty as these Gilardoni pistons are, I hope they never see the light of day again.   :grin:

(https://i.postimg.cc/VsRJW5yw/thumbnail-IMG-2310.jpg) (https://postimg.cc/7b5PxHYt)
Title: Re: 1974 Police Eldo Rejuvination
Post by: cliffrod on December 29, 2023, 07:44:37 PM
Nice to see it coming together, Dave.  It’s going to be a great bike.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 30, 2023, 01:32:53 PM
(https://i.postimg.cc/gcs5Cggf/thumbnail-IMG-2323.jpg) (https://postimg.cc/HjJB59D2)

(https://i.postimg.cc/GtgXHSNt/thumbnail-IMG-2325.jpg) (https://postimg.cc/0KmY4Z91)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Sprouty115 on December 30, 2023, 01:46:45 PM
Oh wow , so clean!
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on December 31, 2023, 02:27:00 PM
The original paint is quite nice. 

(https://i.postimg.cc/zf9TdrCN/thumbnail-IMG-2332.jpg) (https://postimg.cc/cKBKHPkk)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 02, 2024, 05:02:29 PM
I completed the refurbishment of the Bosch starter today.  A small endeavor but the result is quite satisfying.

(https://i.postimg.cc/kgXXhQbs/thumbnail-IMG-2340.jpg) (https://postimg.cc/kBzm2twR)

(https://i.postimg.cc/wjfTK15p/thumbnail-IMG-2341.jpg) (https://postimg.cc/zyh1KXPt)

(https://i.postimg.cc/BvjZJJN1/thumbnail-IMG-2342.jpg) (https://postimg.cc/zL1YjZsJ)
Title: Re: 1974 Police Eldo Rejuvination
Post by: kballowe on January 04, 2024, 12:19:52 PM
It's turning out soooo nice !

 :bike-037:
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 05, 2024, 07:21:05 PM
The generator had a noisy front bearing.   Since I had it apart I cleaned it up and checked it over thoroughly while waiting for the bearing which came today. 

It's almost a shame to cover this up now that it looks so spiffy.

(https://i.postimg.cc/3NnpksQk/thumbnail-IMG-2359.jpg) (https://postimg.cc/5QQjGk0J)

Title: Re: 1974 Police Eldo Rejuvination
Post by: Canuck750 on January 06, 2024, 12:51:14 PM
excellent attention to detail, the little things is what set your restorations off from most, the restored starter and generator are better than new. :thumb:
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 06, 2024, 02:17:58 PM
excellent attention to detail, the little things is what set your restorations off from most, the restored starter and generator are better than new. :thumb:

Thanks Jim.  Try as I might, I still can't quite make it to your level!   :bow:  But I keep trying.   :grin:
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 06, 2024, 02:22:45 PM
The timer had the typical "cratering" so I chucked it in the lathe and cleaned up the surface.  I am fabricating a better clamp for it.

 (https://i.postimg.cc/QtfjYyH3/thumbnail-IMG-2361.jpg) (https://postimg.cc/vg6RcXrq)

A freshly plated pulley will make it tough to discern the timing marks with a strobe light so I painted the circumference of the inward pulley black and painted the hash marks white.

(https://i.postimg.cc/Vv5mxWCb/thumbnail-IMG-2362.jpg) (https://postimg.cc/fS4GXX5w)

Looking good under the cover. 

(https://i.postimg.cc/sx8ssGYH/thumbnail-IMG-2363.jpg) (https://postimg.cc/8fhqb5nL)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 07, 2024, 07:03:13 AM
Guzzis sure have man sized generators!  Those dainty little Triumph dynamos have no place here!  :laugh:

(https://i.postimg.cc/50vfbS9H/thumbnail-IMG-2366.jpg) (https://postimg.cc/k6n0y8b9)

Title: Re: 1974 Police Eldo Rejuvination
Post by: Turin on January 07, 2024, 10:10:15 AM
Sweet Eldo!
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 07, 2024, 08:53:41 PM
This clamp should do the trick.

(https://i.postimg.cc/zDwk0x9V/thumbnail-IMG-2370.jpg) (https://postimg.cc/qgRn7xBT)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Antietam Classic Cycle on January 08, 2024, 08:33:41 AM
This clamp should do the trick.

(https://i.postimg.cc/zDwk0x9V/thumbnail-IMG-2370.jpg) (https://postimg.cc/qgRn7xBT)

Virtually identical to the ones Patrick Hayes made and sold a few of. Work well.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 08, 2024, 05:53:28 PM
I get a chuckle out of Mark's notation on the rear drive.   :grin:

(https://i.postimg.cc/gJYRtNGq/thumbnail-IMG-2372.jpg) (https://postimg.cc/7CWff1Gf)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 08, 2024, 07:36:37 PM
Both wheels on the "ground" and wiring has begun.  The Bender looms are beyond perfect. 

(https://i.postimg.cc/6QRJbfM3/thumbnail-IMG-2374.jpg) (https://postimg.cc/CZFQzkTT)

(https://i.postimg.cc/wvpKCRrk/thumbnail-IMG-2376.jpg) (https://postimg.cc/94JNT0C4)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 11, 2024, 12:26:00 PM
Carbs in with new jets, slide needles, float needles, and choke valves.

(https://i.postimg.cc/BQNS6Tkj/thumbnail-IMG-2387.jpg) (https://postimg.cc/TpLMNDRx)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Turin on January 11, 2024, 02:29:44 PM
Do the carbs have a Zinc looking finish, or is it the picture or my imagination? My 30VHB's look grey.( maybe my crap is just dirty)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 11, 2024, 06:50:16 PM
Do the carbs have a Zinc looking finish, or is it the picture or my imagination? My 30VHB's look grey.( maybe my crap is just dirty)

I don't see any evidence of zinc plating, but remnants of yellow dichromate seem to be present.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 11, 2024, 09:21:31 PM
Police lighting upgrade from Moto Guzzi Classics.

(https://i.postimg.cc/Jzn1ByCP/thumbnail-IMG-2386.jpg) (https://postimg.cc/QH2L2dtT)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Turin on January 11, 2024, 11:27:12 PM
Dichromate!
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 13, 2024, 04:11:39 PM
The dash has been gone over and ready to go.

(https://i.postimg.cc/VkPv6BKc/thumbnail-IMG-2418.jpg) (https://postimg.cc/RNG4pfrP)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 15, 2024, 04:32:23 PM
(https://i.postimg.cc/RFxnh48C/thumbnail-IMG-2427.jpg) (https://postimg.cc/sBK20dsb)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Cam3512 on January 16, 2024, 06:56:47 AM
Awesome!
Title: Re: 1974 Police Eldo Rejuvination
Post by: Huzo on January 16, 2024, 07:38:15 AM
Thanks Jim.  Try as I might, I still can't quite make it to your level!   :bow:  But I keep trying.   :grin:
Well…
Someone like me cannot tell the difference.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 16, 2024, 04:41:54 PM
I have 2 red, 1 blue, and these 2 amber spot lamps.  I prefer the look of amber, but easy to change out and experiment.

(https://i.postimg.cc/FFpxkDS4/thumbnail-IMG-2440.jpg) (https://postimg.cc/SjX9wLVT)
Title: Re: 1974 Police Eldo Rejuvination
Post by: kballowe on January 17, 2024, 07:09:04 AM
HEY !

How about a video "walk around" ???

Please.

It's too nice to just tease us with a picture now and then.

 :bike-037:
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 17, 2024, 08:17:28 AM
HEY !

How about a video "walk around" ???

Please.

It's too nice to just tease us with a picture now and then.

 :bike-037:

Good idea.  I will work on that.  Until then, this will have to do.

(https://i.postimg.cc/Wb8Jsw3f/thumbnail-IMG-2450.jpg) (https://postimg.cc/gnw0DR3v)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 20, 2024, 07:09:12 PM
The talented painter and sheet metal repair specialist down the street from me finished the police boxes today.   Now for the nerve wracking job of drilling new mounting holes. 

There are many police Eldo/Ambos out there, but very few with actual police sheet-metal boxes.  Stoked!

(https://i.postimg.cc/P5g00k1W/thumbnail-IMG-2460.jpg) (https://postimg.cc/QFq6Ww4C)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Vagrant on January 21, 2024, 10:16:10 AM
The talented painter and sheet metal repair specialist down the street from me finished the police boxes today.   Now for the nerve wracking job of drilling new mounting holes. 

There are many police Eldo/Ambos out there, but very few with actual police sheet-metal boxes.  Stoked!

That beauty needs to be in a glass bubble.

(https://i.postimg.cc/P5g00k1W/thumbnail-IMG-2460.jpg) (https://postimg.cc/QFq6Ww4C)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 21, 2024, 08:53:05 PM
Went after it pretty hard this weekend.  It is finished, except for bleeding the front brake and first fire.   Greg Bender's wiring harnesses were perfect.  And his amazing instructions enable success every time if you follow them to a T. 

(https://i.postimg.cc/TPMQxVQS/thumbnail-IMG-2462.jpg) (https://postimg.cc/NKDR7r37)

(https://i.postimg.cc/K8gQCq7B/thumbnail_IMG_2461.jpg) (https://postimg.cc/pmRDFB6L)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Sprouty115 on January 22, 2024, 06:09:25 AM
Stunning!
Title: Re: 1974 Police Eldo Rejuvination
Post by: kballowe on January 22, 2024, 01:45:04 PM
You should park that one in the house.  Add track lighting.  I'll donate a can of Pledge and a stack of micro fiber towels.
Invite us all over for a look-see.  Oh, and a BBQ.


(https://i.ibb.co/xD71QgZ/laughing-baby.jpg) (https://ibb.co/xD71QgZ)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 22, 2024, 02:35:24 PM
You should park that one in the house.  Add track lighting.  I'll donate a can of Pledge and a stack of micro fiber towels.
Invite us all over for a look-see.  Oh, and a BBQ.


(https://i.ibb.co/xD71QgZ/laughing-baby.jpg) (https://ibb.co/xD71QgZ)


Now that sounds like a night to remember!  HA! 
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 23, 2024, 01:04:56 PM
A long time ago Guzzi eagle tank water slide decals were applied with the eagles flying backward to this bike.  Luck was with me as there was no clear coat applied to them.  Yesterday I carefully removed the decals and this morning I applied the best available tank decal/sticker that mimics the factory silkscreen perfectly.  These "shadow" decal/stickers haven't been made for quite a long time.  I was lucky to have found 1 set.  I figured this bike deserved correct (as I can make it) forward facing eagles. 

(https://i.postimg.cc/g0YrTPJn/thumbnail-IMG-2485.jpg) (https://postimg.cc/w1G61ZDp)

(https://i.postimg.cc/8Cts8nJw/thumbnail-IMG-2488.jpg) (https://postimg.cc/wtR9L2ks)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Sprouty115 on January 23, 2024, 01:24:54 PM
I can't take my eyes off it...

BTW, given the choices, how did you decide on what seat to put on it?
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 23, 2024, 01:40:32 PM
I can't take my eyes off it...

BTW, given the choices, how did you decide on what seat to put on it?

This is a true original police solo seat with steel pan.  It was with the bike since day one, therefore an easy decision.   :laugh:

Originals are very hard to find nowadays.  But there are some nice repops of course.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Sprouty115 on January 23, 2024, 01:43:44 PM
This is a true original police solo seat with steel pan.  It was with the bike since day one, therefore an easy decision.   :laugh:

Originals are very hard to find nowadays.  But there are some nice repops of course.

Ah, that makes sense...thanks.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 23, 2024, 05:06:20 PM
A friend stopped by with his little pup to check out the bike. 

(https://i.postimg.cc/MKw7SH9G/thumbnail-IMG-2493.jpg) (https://postimg.cc/DmCJQvkV)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on January 23, 2024, 10:18:03 PM
Guzzi does symmetry like no one else.

(https://i.postimg.cc/gjLmtGZF/thumbnail-IMG-2479.jpg) (https://postimg.cc/T5xzpM0C)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on May 04, 2024, 11:10:39 AM
We are finally getting some decent weather for break in up here.  150 miles on it now and it is flawless.  Dropped the oil upon return from this morning's 100 mile ride.

(https://i.postimg.cc/brXhFJQw/thumbnail-IMG-29851.jpg) (https://postimg.cc/XGgmrnHR)
Title: Re: 1974 Police Eldo Rejuvination
Post by: Pescatore on May 04, 2024, 07:13:56 PM
Stunning bike.
Did you polish the engine? It's so shiny.
Title: Re: 1974 Police Eldo Rejuvination
Post by: kballowe on May 06, 2024, 05:39:09 AM
We are finally getting some decent weather for break in up here.  150 miles on it now and it is flawless.  Dropped the oil upon return from this morning's 100 mile ride.

(https://i.postimg.cc/brXhFJQw/thumbnail-IMG-29851.jpg) (https://postimg.cc/XGgmrnHR)

Dave -

That's a GREAT picture !

How about some more pictures ?

 :gotpics:
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on July 10, 2025, 10:22:42 AM
Dave -

That's a GREAT picture !

How about some more pictures ?

 :gotpics:

Better late than never.

(https://i.postimg.cc/1zVWCfHk/thumbnail-IMG-4960.jpg) (https://postimg.cc/xkYyqjB5)
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on October 08, 2025, 11:31:12 PM
Better late than never.

(https://i.postimg.cc/1zVWCfHk/thumbnail-IMG-4960.jpg) (https://postimg.cc/xkYyqjB5)
Awesome job here Dave. I just picked up a 1974 Eldo Police last week and just getting started on getting it fired up and test ride. It's been sitting for about 8years. Turned over by hand well. Lots of little things missing or just wrenched on terribly but that's why I got a good deal on it. I'm retired so a have some time to wrench this upcoming winter. I'm getting after it now while the weather is good. I just joined Wildguzzi so if you don't mind I may be asking some questions on the '74 Police if you don't mind, I'd appreciate it. I'm a Beemer guy and this is my first Guzzi and I've always wanted a Eldo Police, and here I am. Thanks
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on October 09, 2025, 04:54:32 AM
Awesome job here Dave. I just picked up a 1974 Eldo Police last week and just getting started on getting it fired up and test ride. It's been sitting for about 8years. Turned over by hand well. Lots of little things missing or just wrenched on terribly but that's why I got a good deal on it. I'm retired so a have some time to wrench this upcoming winter. I'm getting after it now while the weather is good. I just joined Wildguzzi so if you don't mind I may be asking some questions on the '74 Police if you don't mind, I'd appreciate it. I'm a Beemer guy and this is my first Guzzi and I've always wanted a Eldo Police, and here I am. Thanks

Congrats on your new project.

Whatever you do with it the first cardinal rule is to NOT get it running.  It most likely has the original chrome bores on the cylinders which will flake.  It is not an if = they will flake.  That combined with no oil filter can result in the engine becoming a nice base for a glass topped coffee table.

There is a wealth of information shared on the following FB pages.
Loopframe Guzzi 67 -76 Twins Only

Moto Guzzi 850 & 750 Eldorado Loopframe Box Case

Both pages are very well moderated by some of the most knowledgeable peeps on the planet.  I highly recommend joining these private pages. 
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on October 14, 2025, 01:46:17 PM
Congrats on your new project.

Whatever you do with it the first cardinal rule is to NOT get it running.  It most likely has the original chrome bores on the cylinders which will flake.  It is not an if = they will flake.  That combined with no oil filter can result in the engine becoming a nice base for a glass topped coffee table.

There is a wealth of information shared on the following FB pages.
Loopframe Guzzi 67 -76 Twins Only

Moto Guzzi 850 & 750 Eldorado Loopframe Box Case

Both pages are very well moderated by some of the most knowledgeable peeps on the planet.  I highly recommend joining these private pages.
Looks like I'll have to rejoin FB then....Ughhhh.
So even with 33kmiles I should tear it down to inspect, or just save and get a bore kit? My very good friend builds automotive and motorcycle race engines and has a very extensive work shop capable of boring if anyone offers a sleeve/piston set for it. I could save a lot that way too.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on October 15, 2025, 08:32:07 AM
Tear down  for overall inspection. The cylinders may look good but don't trust them if they are the original chrome bores. . The best route is replacement cylinder/piston and ring sets. Gilardonis if you can get those.m
 
Put yourself on the waiting list. They are in stock from time to time.
https://www.mgcycle.com/index.php?main_page=product_info&products_id=6076

Also contact Harpers.  Curtis Harper will be a huge help finding parts for your project.

Suck it up and get on FB.  You can ignore all your old girlfriends and just focus on the Guzzi pages :grin:
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on October 16, 2025, 05:22:01 AM
Tear down  for overall inspection. The cylinders may look good but don't trust them if they are the original chrome bores. . The best route is replacement cylinder/piston and ring sets. Gilardonis if you can get those.m
 
Put yourself on the waiting list. They are in stock from time to time.
https://www.mgcycle.com/index.php?main_page=product_info&products_id=6076

Also contact Harpers.  Curtis Harper will be a huge help finding parts for your project.

Suck it up and get on FB.  You can ignore all your old girlfriends and just focus on the Guzzi pages :grin:
My old girlfriends are just that....OLD, like me...LOL! Thanks for the Harper suggestion, cool website, much appreciated.
Well, I gave in and took your suggestion yesterday and tore down the top end. Everything looks great from minimum wear to carbon build-up, or lack of.....pristine actually and the valves are sealing nicely. I emailed Andrew from MG Cycle and he said the same with regard to the chrome lined cylinders. I'm looking hard at the Cycle Garden Big-Bore kit right now and I have an order in for an estimate for Millennium to Nikasil my cylinders. I noticed MGCycles had a Big Bore kit listed but it just lists it for the 850T3 and not specifically the Eldo, so not sure if it's the same. Okay, so I'm on my way to a new top end, just gotta save my pennies, or hook up with an old RICH girlfriend on Facebook.
BTW- My bike doesn't have choke cables, it has the adjusters and the internals for the choke, just not the cables. Did the Police bike not have cables or are mine just missing. I was looking at the individual chokes available for the VHB's at MGCycle. To go cables I'd need everything from the handle bars to the VHB adjusters. Thanks for your help so far, much appreciated.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on October 16, 2025, 07:10:50 AM
My old girlfriends are just that....OLD, like me...LOL! Thanks for the Harper suggestion, cool website, much appreciated.
Well, I gave in and took your suggestion yesterday and tore down the top end. Everything looks great from minimum wear to carbon build-up, or lack of.....pristine actually and the valves are sealing nicely. I emailed Andrew from MG Cycle and he said the same with regard to the chrome lined cylinders. I'm looking hard at the Cycle Garden Big-Bore kit right now and I have an order in for an estimate for Millennium to Nikasil my cylinders. I noticed MGCycles had a Big Bore kit listed but it just lists it for the 850T3 and not specifically the Eldo, so not sure if it's the same. Okay, so I'm on my way to a new top end, just gotta save my pennies, or hook up with an old RICH girlfriend on Facebook.
BTW- My bike doesn't have choke cables, it has the adjusters and the internals for the choke, just not the cables. Did the Police bike not have cables or are mine just missing. I was looking at the individual chokes available for the VHB's at MGCycle. To go cables I'd need everything from the handle bars to the VHB adjusters. Thanks for your help so far, much appreciated.

Myself, I would stick with the standard bore.  They run down the road very well as 850.  I never wanted to get involved in crank balancing that is required with a big bore, also the extra complication.  The Eldo does not need a big bore. 

Over the years many owners have deleted the choke system.  If you never ride in cold weather you can get by without a choke, but I always set mine up stock with choke. 
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on October 17, 2025, 08:52:31 AM
Myself, I would stick with the standard bore.  They run down the road very well as 850.  I never wanted to get involved in crank balancing that is required with a big bore, also the extra complication.  The Eldo does not need a big bore. 

Over the years many owners have deleted the choke system.  If you never ride in cold weather you can get by without a choke, but I always set mine up stock with choke.
Thanks, got my cylinders and heads over to my buddy that builds engines for a living and we mic'd the cylinder and valve guide bores.....not good, plus the rings were wore out, so looks like top end time for the ole gal. Who do you trust for Guzzi headwork?
Title: Re: 1974 Police Eldo Rejuvination
Post by: Antietam Classic Cycle on October 17, 2025, 09:08:19 PM
Another source for parts. These cylinder kits are excellent quality as well, every bit as good as the Gilardonis at a lower price. https://www.crustycycle.com/products/moto-guzzi-cylinder-complete-83mm-850t-t3-eldorado-850gt
Title: Re: 1974 Police Eldo Rejuvination
Post by: Aldo on October 18, 2025, 12:43:23 AM
Another source for parts. These cylinder kits are excellent quality as well, every bit as good as the Gilardonis at a lower price. https://www.crustycycle.com/products/moto-guzzi-cylinder-complete-83mm-850t-t3-eldorado-850gt

+1 on Crusty, great service and fast shipping. I have s set of these on my '73 Eldo, easy fit with no issues.
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on October 20, 2025, 06:08:54 AM
Another source for parts. These cylinder kits are excellent quality as well, every bit as good as the Gilardonis at a lower price. https://www.crustycycle.com/products/moto-guzzi-cylinder-complete-83mm-850t-t3-eldorado-850gt
Thanks Charlie, I bought qa few items off of "CrustyCycle" already, he's a good seller.
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on October 20, 2025, 06:10:12 AM
 
+1 on Crusty, great service and fast shipping. I have s set of these on my '73 Eldo, easy fit with no issues.
Thanks.. :thumb:
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on October 20, 2025, 07:03:46 AM
Thanks Charlie, I bought qa few items off of "CrustyCycle" already, he's a good seller.

Nice going on getting the cylinder sets!  Now pull that crank, check all the bearing fits, AND clean out the sludge trap!
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on October 26, 2025, 01:08:09 PM
Nice going on getting the cylinder sets!  Now pull that crank, check all the bearing fits, AND clean out the sludge trap!
If by the "sludge trap" you mean the pan and that cage thingy, I did that. Are you making me pull the engine for the crank check? Ughhhh....
Title: Re: 1974 Police Eldo Rejuvination
Post by: Antietam Classic Cycle on October 26, 2025, 04:58:38 PM
If by the "sludge trap" you mean the pan and that cage thingy, I did that. Are you making me pull the engine for the crank check? Ughhhh....

The sludge trap is a cavity inside the rod journal of the crankshaft and is only accessible once the crank is removed.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on October 28, 2025, 04:39:41 AM
The sludge trap is a cavity inside the rod journal of the crankshaft and is only accessible once the crank is removed.

What he said!

There's no point in pumping $$$ into a bike that most likely has a crank sludge trap full or darn near.   :azn:

Based on the condition of your top end I would bet it is full

You will pat yourself on the back later.  :cool:
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on October 28, 2025, 01:18:10 PM
What he said!

There's no point in pumping $$$ into a bike that most likely has a crank sludge trap full or darn near.   :azn:

Based on the condition of your top end I would bet it is full

You will pat yourself on the back later.  :cool:
I bet you're right because the pan had that gooey black, non-metallic mess in it. Okay, time to get after it. At this rate I need to heat my garage.....sigh. It's cold right now in NC. Thanks guys.
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on November 10, 2025, 08:37:45 AM
What he said!

There's no point in pumping $$$ into a bike that most likely has a crank sludge trap full or darn near.   :azn:

Based on the condition of your top end I would bet it is full

You will pat yourself on the back later.  :cool:
  Engine out, sludge trap cleaned! It wasn't packed full but there was junk in it....thanks! Mic'd the bearings and journals, everything is good. Checking into a Stein-Dinse oil filter conversion kit before I put this back together, I'd feel much better with this kit installed.
  I cleaned all the oil passages, clutch assembly, replaced a bad u-joint in the drive shaft assembly, rear end is tight, rebuilt the front forks and installed progressive springs, rebuilt the master cylinder and caliper, new wheel bearings and made and installed front wheel bearing spacer. Things are coming along well, so many little things...but the little things is what will always bite you in the butt down the road.
Title: Re: 1974 Police Eldo Rejuvination
Post by: Dave Swanson on November 10, 2025, 08:48:06 AM
  Engine out, sludge trap cleaned! It wasn't packed full but there was junk in it....thanks! Mic'd the bearings and journals, everything is good. Checking into a Stein-Dinse oil filter conversion kit before I put this back together, I'd feel much better with this kit installed.
  I cleaned all the oil passages, clutch assembly, replaced a bad u-joint in the drive shaft assembly, rear end is tight, rebuilt the front forks and installed progressive springs, rebuilt the master cylinder and caliper, new wheel bearings and made and installed front wheel bearing spacer. Things are coming along well, so many little things...but the little things is what will always bite you in the butt down the road.

Good progress!!

If you haven't put the swingarm back on, check the u-joint bearing for cracks and smooth operation.  The bearing is cheap, so its not a bad idea to replace it when it is apart. 
Title: Re: 1974 Police Eldo Rejuvination
Post by: DaGootz on November 11, 2025, 08:39:37 PM
Good progress!!

If you haven't put the swingarm back on, check the u-joint bearing for cracks and smooth operation.  The bearing is cheap, so its not a bad idea to replace it when it is apart.
Swingarm is still out so I'll check the bearing tomorrow. Thanks Dave