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General Discussion / Re: V7 II Cylinder Knock
« Last post by tazio on Today at 04:59:14 AM »
Just a wild-ass thought, but could it be a flat lobe on the camshaft?
Certainly worth the thought, I suppose. How would I even check that without dissembling the motor completely? Only way I can think is removing one of the cylinders (once again) and sticking a borescope down in and faced upward to view the cam from below?
Couldn't you just pop the valve covers off, and as you rotate crankshaft, indicate the amount of movement of the Rocker arm of the valve in question (say, intake valve), and compare readings to arm movement on opposite cylinder?
2
General Discussion / panier protection bars
« Last post by ray bear on Today at 04:50:39 AM »
are these bars made for Guzzi or are they after market and who manufactures them , Thanks Ray
 

3
General Discussion / Re: Acceptable play in V50 ujoint?
« Last post by huub on Today at 04:44:41 AM »

if you find a shop specialised in agricultural equipment, the bearings are cheap ( around 10 euro)
https://www.amacoo.nl/kruisstuk-20x44-by-py-05-41
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General Discussion / Re: Rear Gear box rebuild-which needle bearing type?
« Last post by John Croucher on March 18, 2024, 10:16:08 PM »
The "brass thrust bearing" is only there for the roller needle cage, nothing else. If you add more than the original one, the outer race will be protruding from the housing.

I'm puzzled as to what you're trying to fix. Assembled the way they come from the factory, a properly shimmed and maintained rear drive will last 200k miles or more.

The stack height between the thrust washer and the seat of the flange cover.  With out the gasket and .050 inch shim the height is .025 inch to tight.  The cover will not seat against the housing.
 Adding the two caskets and shim is .027 clearance. 

This allows the crown gear move .027 inch away from the pinion gear. Creating slack or clearance between the pinion and crown gear.   Using 4 gaskets is .030 or .005 inch clearance. 

If the big bearing is installed fully seated in the cover and the crown gear fully seated in the big bearing inner race, the shaft sits .025 inch off the brass washer.  Then if the pinion gear is adjusted, the pinion an crown mesh too tight if the shaft moves toward the brass washer. I checked to see if this happens by changing the shims in the pinion bearing housing.  Moving the pinion gear in and out moved the crown gear and shaft . 025in. Toward or away from the washer or outer cover with two gaskets and .050 shim.

The Stock. 050 shim is not always the correct thickness, in my assembly.



5
General Discussion / Re: Acceptable play in V50 ujoint?
« Last post by Antietam Classic Cycle on March 18, 2024, 09:52:56 PM »
Hey Jim, I see the only specs on the TUS-1MG are  20x44mm.
That website shows two different sizes available.
Is that width/length, caps diameter?
Is that what your cross measures?
Just wondering how to identify what I need on a similar bike?
.

20 mm is the diameter of the bearing cap, 44 mm is the width of the "cross" with caps. 
6
General Discussion / Re: V7 II Cylinder Knock
« Last post by jrt on March 18, 2024, 09:49:35 PM »
Unfortunately, I would think that you would need to disassemble the motor as you say.  But- it really is just a thought.  My guess is that any cylinder with a mis-shaped cam lobe would run very poorly.  Hugo's suggestion of temperature would be the first thing I'd do (because it is easiest!).
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General Discussion / V100 - muffler end can
« Last post by Fitzig23 on March 18, 2024, 09:01:06 PM »
Dear all

I recently installed an Arrow end can on the V100 and as expected to a degree, there is some assorted popping on over run during deceleration and indicative of lean mixture conditions. As with most modern bikes the system uses dual O2 sensors in a closed loop and one would think it will re-tune itself over a short time.

Does anyone know of a recommended way to force the re-tune? EG; Apparently with Triumph and some others there is a ritual of letting the bike idle until the cooling fans operate a few times, turn the bike off and back on again, stand on one leg and recite the declaration of peace etc. Am sure there is something out there.


thanks



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General Discussion / Re: Acceptable play in V50 ujoint?
« Last post by Pescatore on March 18, 2024, 08:38:03 PM »

On further inspection I discovered the most play was actually side to side on the gearbox yoke side-  between the end cap and its circlip. Maybe it was replaced/serviced and someone reefed on it in when reassembling?

The driveshaft yoke's bearing surfaces were dry and and a bit marred though I couldn't feel any surface imperfections.

Charlie from  Antietam Classic Cycle said he successfully used http://www.theujointstore.com/tus1m1.html as a replacement. It's suspiciously cheap at $28 but I'll give it a go :-)

jim

Hey Jim, I see the only specs on the TUS-1MG are  20x44mm.
That website shows two different sizes available.
Is that width/length, caps diameter?
Is that what your cross measures?
Just wondering how to identify what I need on a similar bike?
.
10
General Discussion / Re: V50 BAP petcock rebuild kits?
« Last post by 73 sport on March 18, 2024, 07:17:30 PM »
  The petcock gasket kits are under "Gaskets" not Petcocks.
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