Aero engine rescue

[rocker59]

This is the coolest thread ever. I find myself checking it 3 times a day. WOW!!! :drool

 :+1

 ;-T

[kevdog3019]

This is a great thread Chuck; doing well!   ;-T  Will look interesting in the Lario frame. Pretty beefy. Gonna make a bobber out of it?  :P
Kevin
Ps. You have any idea the weight difference of that mill vs. the Lario? 

[Chuck in Indiana]

This is a great thread Chuck; doing well!   ;-T  Will look interesting in the Lario frame. Pretty beefy. Gonna make a bobber out of it?  :P
Kevin
Ps. You have any idea the weight difference of that mill vs. the Lario? 

Well, I've picked them up and carried them around.  ;D Couldn't tell any difference.. but obviously the aero heads are a little bigger. Couldn't be much.

[Rumba]

Those heads look the business, don't they?

 ;-T

[IceBlue]

Cant wait for your first ride report - this is huge - thanks Chuck ;-T
I'd love to hear how it does compared to the stock Lario!

Cheers
Brian

[kevdog3019]

Grunt factor should be pretty charming in comparison.

[father guzzi obrian]

Just thought I would bump up the thread Chuck so you don't have to search to much...... The next installment is eagerly awaited..... :pop

[oldmxdog61u]

Great work again. Thanks for sharing.
Question. ..
What bar end mirrors are those? Nice!
Question.
I wonder if the tailight will fit on a lm4?
Mine is held together with hot glue...
Again.wow.
Wish I lived closer, I would do a lot of chores for a ride in that tail dragger. :+1

[Chuck in Indiana]

Great work again. Thanks for sharing.
Question. ..
What bar end mirrors are those? Nice!
Question.
I wonder if the tailight will fit on a lm4?
Mine is held together with hot glue...
Again.wow.
Wish I lived closer, I would do a lot of chores for a ride in that tail dragger. :+1

Thanks! CRG mirrors. There *is* a difference between them and the Asian knockoffs. The kid has a connection, so I got em wholesale. (Guzzi content)
I would think the taillight would fit, but it's sort of unobtainium. It's just the old lens like on the SP with sonic welded ears stuck on it to make it look different. Guzzi had *no* money for bling back in the 80s..

[tiger_one]

These kind of threads are dangerous, makes ordinary people think they can go out and get a similar bike/motor and build it themselves!  I love it, so thanks for the ride.   :bow

[sign216]

Chuck, count me as one of your followers in this historic build.
Joe

[Chuck in Indiana]

Chuck, count me as one of your followers in this historic build.
Joe

Gulp. The pressure's on.  ;D Note to self.. screw this up, and your name will go down in infamy..

On a related note. Does anyone know what material the stock Lario exhaust headers are made of?

[John A]

Nice work, thanks for posting! When is the roll out ceremony?

[Vasco DG]

Gulp. The pressure's on.  ;D Note to self.. screw this up, and your name will go down in infamy..

On a related note. Does anyone know what material the stock Lario exhaust headers are made of?

Everything of the Lario era was mild steel with that dreadful 'Black Chrome' that fell to bits in a week I think. If you wanted to keep the original look I'd think ceramic coating would be the best bet. I think that the originals are double walled but you probably know better than me.

Very interesting build Chuck. Oh, and big  ;-T for Dorcia!

Pete

[Chuck in Indiana]

Everything of the Lario era was mild steel with that dreadful 'Black Chrome' that fell to bits in a week I think. If you wanted to keep the original look I'd think ceramic coating would be the best bet. I think that the originals are double walled but you probably know better than me.

Very interesting build Chuck. Oh, and big  ;-T for Dorcia!

Pete

Thanks, Pete.. I was wondering because the head pipes on the aero engine are stainless, and I was thinking about cutting them off and welding them to the Lario headers. The exhaust mounts are completely different than anything I've seen on a small or big block. If the Lario headers are mild steel, I'll just make something similar to the aero header and weld it on there. Welding stainless to mild steel is doable, but not for the faint of heart.  ;D

[Vasco DG]

Just looking back through this thread and I notice that the heads are 'Back to front' on the drone. That would have to mean that it either uses a 'Back to front' camshaft or it spins in reverse. If it spins the opposite way in the drone what will that imply for oil delivery if you spin it 'Conventionally' as a bike engine? You may well of addressed all this and if so I'm sorry for wasting your time but with such a rare and unusual project it would be a shame to fire it up and have it instantly destroy itself!

Pete

[Antietam Classic Cycle]

Just looking back through this thread and I notice that the heads are 'Back to front' on the drone. That would have to mean that it either uses a 'Back to front' camshaft or it spins in reverse. If it spins the opposite way in the drone what will that imply for oil delivery if you spin it 'Conventionally' as a bike engine? You may well of addressed all this and if so I'm sorry for wasting your time but with such a rare and unusual project it would be a shame to fire it up and have it instantly destroy itself!

Pete

Chuck's engine is the reverse of the one Dogwalker posted:



One is a "pusher" and the other a "puller".

[Vasco DG]

My brain hurts!  ;D

[rocker59]

[father guzzi obrian]

A friend who goes unmentioned, but runs a duc and guzzi biz in sanfransico had a cam from one of the versions of the engine, and it ran reverse, guess there is a correct running version and a backwards version.  Chuck will find out the moment he presses the starter button ~;

[Aaron D.]

He not only checked the timing, he replaced the cam-and I believe the oil pump was checked/replaced also. No worries.

[Chuck in Indiana]

A friend who goes unmentioned, but runs a duc and guzzi biz in sanfransico had a cam from one of the versions of the engine, and it ran reverse, guess there is a correct running version and a backwards version.  Chuck will find out the moment he presses the starter button ~;

How's she go? Uh, not too well forward, but really gets with it in reverse..  ;D  :BEER:

[Chuck in Indiana]

Ok, back at it.
Since the head is considerably bigger, the exhaust is going to have to be shorter up front to make the rest of it fit up. Doing a little scaling says it needs to be 13/16" shorter compared to the Lario.


Since we now know that the Lario exhaust is mild steel, just cutting the end off the aero engine exhaust and welding it on isn't going to get it.

Rummaged through my good junk pile, and didn't find any suitable mild steel to make it out of, so decided to do something else. Using the cam to turn the cad drawing into code the cnc can understand..

Cutting everything away that doesn't look like a head guard..  ;D

Time for lunch. More later...

[Chuck in Indiana]

Need to clear around the bottom two screw holes to make them a little weaker, but other than that, all I need to do is make up a couple of hundred and wait for the orders to come flooding in. What?? Oh. Never mind..   :D

[Stormtruck2]

I'd  still take/love/pay for a pair for my other Centauro!!!!! ;-T

[Chuck in Indiana]

I'd still a pair for my other Centauro!!!!! ;-T

That's been a long time ago. I'll give it a look, but no guarantees. I never intended on making any more after that one run.

Edit:
The program is long gone, but I *did* find the cad drawing, so it's doable. Have to make a fixture to hold it and get some material.

[kevdog3019]

You'd be a hero and peach if you came up with a Lario solution Chuck.  ;-T

[Chuck in Indiana]

You'd be a hero and peach if you came up with a Lario solution Chuck.  ;-T

That would remind me entirely too much of work.. ;) :BEER:

[Joaozz]

Hello all !
I come up this discussion about aero engine and though that is opportune  to show my Lario that got the very first aero V75 engine that was tested at the beginning of the project by the IAF
My engine were supplied by the guzzi dealer in Israel at that time to test the compatibily on air.
After used and tested it was reintegrated to the dealer and the IAF started to buy the units strait from the factory.
So the dealer decided to take advantage of the 750 engine by adapt it to a Lario base.
It was 1988 or so I think and after a long abandoned years and a total restauration by me it runs fine.
I called it  "Larga" (Lario/Targa  ;D)
Pictures and some explanation can be seen in my blog :
http://targa750.blogspot.co.il/
Samuel

[pauldaytona]

Samual the haeds of yours look more like the targa 750 heads. Not the aero heads