River west
Standard Bore
- Joined
- Mar 19, 2026
- Messages
- 1
- Ride
- 2020 Rocket3
Dear all
My 2020 rocket3 is experiencing abnormal vibrations 4000 rpm while riding, regardless of whether it is in nutral,1st,2nd and 3rd gear.
therefore,I decided to have it overhauled this winter.
When dealer mechnic opened the engine, it was found that O-ring on the rea balancer shaft was damaged or deformed.
The dealar reported this abnormality to Triumph.
The following are possible causes of this problem as mechanical engineer.
1.A worker made a mistake when assembling the O-ring onto the shaft and then attaching them to the case,resulting in an incorrect assembly.
2.A different O-ring,although very similar in dimentions(slightly large size), was used.
Personally, I suspect it is a combination of 1 and 2.
I would appreciate your opinions on this situation.
My 2020 rocket3 is experiencing abnormal vibrations 4000 rpm while riding, regardless of whether it is in nutral,1st,2nd and 3rd gear.
therefore,I decided to have it overhauled this winter.
When dealer mechnic opened the engine, it was found that O-ring on the rea balancer shaft was damaged or deformed.
The dealar reported this abnormality to Triumph.
The following are possible causes of this problem as mechanical engineer.
1.A worker made a mistake when assembling the O-ring onto the shaft and then attaching them to the case,resulting in an incorrect assembly.
2.A different O-ring,although very similar in dimentions(slightly large size), was used.
Personally, I suspect it is a combination of 1 and 2.
I would appreciate your opinions on this situation.
