Author Topic: slow convert  (Read 1787 times)

Offline ray bear

  • Gaggle Mentor
  • ****
  • *
  • *
  • Posts: 314
  • Location: South Australia
slow convert
« on: March 30, 2020, 06:32:46 AM »
Finally got a convert to keep my v7 sport and eldo company however in comparison to the sport and 850 eldo its a high revving bike, I was under the impression that the Convert was a slow revving bike but not with this bike, Im wondering if the converter is not driving as well as it should but have not seen any one talk about such an issue unless the pump is not up to scratch. At 27000 km the bike seems very original so I dont suppose its had a final drive ratio changed but will be checking drive splines for lube and having a look at the carden joint so try and do a tooth count then. Any Convert owners out there  have any suggestions or is it how they are . Thanks Bill
73 V7 sport
73 Eldo police special
68 BSA rocket 3
74 Norton Commando
78 Honda CBX 1000
47 HRD vincent Rapide
XT 500 Yamaha
76 Convert
84 FLHX limited edition electra glide

Offline fotoguzzi

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • Posts: 19984
  • vee git tooh soon oldt und too late wise -my Dad
Re: slow convert
« Reply #1 on: March 30, 2020, 07:11:20 AM »
Could be loosing pressure from dry flattened o rings in the input housing, number 3,8&9 .. they don't age well.


genderless name generator
MINNEAPOLIS, MN

Offline guzzisteve

  • Gaggle Hero
  • *****
  • Posts: 12277
  • "Just Ride It"
Re: slow convert
« Reply #2 on: March 30, 2020, 07:33:05 AM »
I think you are just not used to the bike. Find someone that has owned one and see what they think. I always thought they rev up faster than manual trans, till it hooks up.
Hard to tell what it's like without riding it myself, that's hard to do on a forum.
"Pray through Carlo & your bike shall be healed"
Location: Planet Earth

Offline Bulldog9

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • Posts: 3065
  • Location: NY'r resettled in the Old Dominion
Re: slow convert
« Reply #3 on: March 30, 2020, 07:33:49 AM »
Finally got a convert to keep my v7 sport and eldo company however in comparison to the sport and 850 eldo its a high revving bike, I was under the impression that the Convert was a slow revving bike but not with this bike, Im wondering if the converter is not driving as well as it should but have not seen any one talk about such an issue unless the pump is not up to scratch. At 27000 km the bike seems very original so I dont suppose its had a final drive ratio changed but will be checking drive splines for lube and having a look at the carden joint so try and do a tooth count then. Any Convert owners out there  have any suggestions or is it how they are . Thanks Bill

I'm sure you know, but the convert has a high and low range. Have you tried it in both? I have very limited time on my convert, but once you get moving the motor settles down significantly especially in high gear. While accelerating it revs pretty high.
MGNOC#23231
The Living: 1976 Convert, 2004 Breva 750, 2007 GRiSO, 2008 1200 Sport, 2012 Norge GT, 2016 Stornello #742
The Departed: 2017 MGX, 2014 Norge GT, 
In Stasis: 1978 XS750, XS1100SF

Offline ray bear

  • Gaggle Mentor
  • ****
  • *
  • *
  • Posts: 314
  • Location: South Australia
Re: slow convert
« Reply #4 on: March 30, 2020, 07:53:13 AM »
maybe im not used to it but speed for speed its a high revving motor in comparison to my other two Guzzi's .can a gauge be hooked up to do a pressure check to determine seal by pass..Bill
73 V7 sport
73 Eldo police special
68 BSA rocket 3
74 Norton Commando
78 Honda CBX 1000
47 HRD vincent Rapide
XT 500 Yamaha
76 Convert
84 FLHX limited edition electra glide

Offline fotoguzzi

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • Posts: 19984
  • vee git tooh soon oldt und too late wise -my Dad
Re: slow convert
« Reply #5 on: March 30, 2020, 08:19:50 AM »
Another thing to consider if the hoses are original, they had a tendency to collapse on the inside and restrict flow.

Back in the day some guys would drill a hole in the bottom of the case and if the o rings passed fluid the spooge would flow out the bottom. I've forgotten how and where the hole was drilled tho.
MINNEAPOLIS, MN

Offline TOMB

  • Gaggle Hero
  • *****
  • Posts: 1498
  • Location: Newington Ct. 06111
Re: slow convert
« Reply #6 on: March 30, 2020, 08:48:46 AM »
  it's possible that the transmission fluid ie. automatic transmission fluid was changed  from the dextron type to  a low viscosity type so you're not getting the the viscosity to keep the torque converter from slipping.
 Low visicoty fluid would make it slip easier so you wouldn't have  you wouldn't have direct fluid flow because of the lower viscosity.
I use Dexron 3 purchased from Napa it works perfectly in my convert.
TOMB
« Last Edit: March 30, 2020, 08:21:13 PM by TOMB »
TOMB

CENTRAL CONNECTICUT
1972 Eldorado new to me so "0" miles so far
1972 AMBASSADOR 169000 MILES
1978 G5 170000 MILES
1973 V7 SPORT 25000 MILES
1973 ELDORADO 300000+ MILES
1980 CX100 50 MILES
1976 CONVERT-62000 MILES AND BUILDING
1976 HONDA CB400F 27 MILES AND BUILDING SOLD

MGNOC # 2723

Offline chuck peterson

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • Posts: 5355
  • Location: New Haven CT
Re: slow convert
« Reply #7 on: March 30, 2020, 09:23:39 AM »
Couple of likely WAG's easily checked..in order of likely hood..

1. Wrist adjustment..first recalibrate wrist TPS to Rpms by inserting earplugs. Notice everyone mentions rpm sounding like a lot? That's about only 5k..you got another 2500-3000 rpm to go before your anywhere near redline..go do a bunch of low range hard pulls from a stop in an empty parking lot...the Rpms shoot way up in a sloppy way above what's needed, then rolls out to a coasting speed. Beat like a donkey in low range..which is what it is, a long distance pack mule.

2. Check the advance mechanism and springs. Dave R has an amazing little bit that I  have experienced with by the numbers springs on order from inventory at guzzi dealers...you never know which ones you have until you compare the measurements. It's common to have the leman 4-5 springs stuck in there, and then it really, really runs like a heavy lug.

3. Running at idle on the ground roll the Rpms down so you can just hold it back with your feet...one finger on the front brake lever should hold it..high idle covers a lot of mis adjustment so tune it up of course

4. The owners manual has a great tidbit on "checking maximum acceleration" madness..apply brakes, fully apply throttle, release brakes..." And that is the secret to convert silliness, give it more gas, more gas, more gas..

I sure loved mine like a Barca lounger..

"I'd like to thank all my friends who have kept my Guzzi's going, but mostly...TOMB."
150k on Verts
750 Nevada
400f
R5 Yammie
BV250
4x 1976 Moto Demm Smily,, now 5, oops now 6, oops now 7
1980 SP1000 in little bits and pieces

Offline ray bear

  • Gaggle Mentor
  • ****
  • *
  • *
  • Posts: 314
  • Location: South Australia
Re: slow convert
« Reply #8 on: March 30, 2020, 06:09:32 PM »

Thanks guys, you have supplied a good starting point and yes I have fallen in love with it in a very short time its great to ride, The same as my other two Guzzi's   love at first site   Bill
73 V7 sport
73 Eldo police special
68 BSA rocket 3
74 Norton Commando
78 Honda CBX 1000
47 HRD vincent Rapide
XT 500 Yamaha
76 Convert
84 FLHX limited edition electra glide

Offline Yeahoo Whoyah

  • Gaggle Hero
  • *****
  • Posts: 1177
  • 1971 LAPD Ambassador - 1976 Convert
  • Location: El Dorado Hills California
Re: slow convert
« Reply #9 on: March 30, 2020, 06:17:06 PM »
Quote
convert has a high and low range. Have you tried it in both?

Raybear: Yes, or no?
Greg Tillitson
El Dorado Hills Calif.

 


NEW WILDGUZZI PRODUCT - Moto Guzzi Door Mat
Receive donation credit with door mat purchase!
Advertise Here