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My new V85TT unravels

N

norton73

Just got it firing!
Joined
Jun 1, 2024
Messages
3
Location
Alabama USA
Hi, bought my first new bike and first Guzzi last Friday from Cadre Cycle near Cincinnati Ohio.
I was loving the bike until last Thursday when the left cylinder developed a loud clatter.
I was going to do the 900 mile service that evening. Removing the valve cover revealed that the rocker arm shaft retainer screw had come out and the shaft had slid out until it was stopped by the cover.
When I removed the cover, a washer, tiny cap, and a screw dropped out. The washer was from between the rocker and the support, the cap was from on top of the valve, and the screw was the offending item. The end of the rocker arm is scored and the lash cap is damaged. I took pictures and Cadre is ordering parts. Not a good start.

KIMG1170 KIMG1172
 
This is a total anomaly. Luck of the draw. It happens sometimes as mechanical systems are well…mechanical systems, but this is a very simple fix.

Frustrating for sure but nothing to get worked up over.
 
norton73 said:
Hi, bought my first new bike and first Guzzi last Friday from Cadre Cycle near Cincinnati Ohio.
I was loving the bike until last Thursday when the left cylinder developed a loud clatter.
I was going to do the 900 mile service that evening. Removing the valve cover revealed that the rocker arm shaft retainer screw had come out and the shaft had slid out until it was stopped by the cover.
When I removed the cover, a washer, tiny cap, and a screw dropped out. The washer was from between the rocker and the support, the cap was from on top of the valve, and the screw was the offending item. The end of the rocker arm is scored and the lash cap is damaged.
I took pictures and Cadre is ordering parts. Not a good start.
Click to expand...
I'm sorry this happened to you, but thank you for the post. @SageD and I checked his immediately upon seeing this and found his nicely secured :) One less thing to worry about!
 
They put a dab of that yellow paint on fasteners that are thread locked but for it to come loose somebody forgot to use the torque wrench as well.
 
I've read of this happening once before. A journo had it happen to him on a test loan back in 2020 or thereabouts. His was also related to one of the locating screws not being loctited correctly, though Guzzi were fairly reluctant to talk about details.

I think I'll pull the covers on mine in the near future and check those screws. I had an inlet valve that was way out of clearance allowance, so was planning to check it again anyway. That said, with 3000km on mine , if it was going to back out a screw it probably already would have done it. But something to keep in mind for anyone doing their first 1000km service.
 
jefrs said:
Having seen how well my bike is put together I do not think it is necessary for everyone to start whipping their covers off to look for loose washers.
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True. But if you're due for a valve clearance set, definitely check the rocker shaft screws whilst in there.

As mentioned though, I'd think any bike prone to this is going to do it early in its running life. Only two examples I've heard of are both in the first thousand miles or so iirc.
 
jshanni said:
True. But if you're due for a valve clearance set, definitely check the rocker shaft screws whilst in there.

As mentioned though, I'd think any bike prone to this is going to do it early in its running life. Only two examples I've heard of are both in the first thousand miles or so iirc.
Click to expand...
Sure you would spot it doing the valve clearances. But I would think the racket would be a give-away long before then.
 
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