Cjard
Standard Bore
- Joined
- Jun 17, 2012
- Messages
- 5
small problem with my dad's 07 r3 (normal), the casing for the final drive gave way and shattered mid ride; there's now only half of it left where the drive shaft enters the casing and there's a lot of damage elsewhere - pretty impressive actually. Thankfully it stayed together enough for him to come to a stop without an accident
Now it turned out that a new one from triumph was a grand, and there don't seem to be many in this country for much less second hand. He did however managed to source one in America, shipped over for about 300 quid. It's arrived and is in great condition etc but there's a slight problem
When fitted, the bike makes the most horrific gear grinding noise even when being wheeled around in neutral. I haven't made any in depth investigations, I'm just going off what he's said and what I've heard wheeling it myself. He says he's looked at the two casings and there's a slight difference in that where the 4 bolts are that mount the casing to the swinging arm, that bit (that sticks out of the circular part of the casing) on the American one is about quarter of an inch shorter than the uk one, and the suspicion is that it causes excess pressure on the drive shaft, making it rub on something that would ordinarily be more free floating. What I'm at a loss to explain though is how the wheel spindle still lines up with the hole on the other side of the swinging arm, though the swinging arm has also been changed for one sourced in this country - not sure why the swinging arm was changed
I know nothing about the relevant dates of the components involved alas, and only have a verbal description of the differences my old man's aging eyes can see
Is anyone aware of:
A) whether triumph would assist us beyond saying "buy a new casing"
B) whether there is a known difference between FD casings used in different world regions or years (did he order the wrong part?)
C) if there is a known difference, can the part he has be adapted/shimmed to work? I'm not averse to modifying swing arm and brake plate mounts etc if needed
Now it turned out that a new one from triumph was a grand, and there don't seem to be many in this country for much less second hand. He did however managed to source one in America, shipped over for about 300 quid. It's arrived and is in great condition etc but there's a slight problem
When fitted, the bike makes the most horrific gear grinding noise even when being wheeled around in neutral. I haven't made any in depth investigations, I'm just going off what he's said and what I've heard wheeling it myself. He says he's looked at the two casings and there's a slight difference in that where the 4 bolts are that mount the casing to the swinging arm, that bit (that sticks out of the circular part of the casing) on the American one is about quarter of an inch shorter than the uk one, and the suspicion is that it causes excess pressure on the drive shaft, making it rub on something that would ordinarily be more free floating. What I'm at a loss to explain though is how the wheel spindle still lines up with the hole on the other side of the swinging arm, though the swinging arm has also been changed for one sourced in this country - not sure why the swinging arm was changed
I know nothing about the relevant dates of the components involved alas, and only have a verbal description of the differences my old man's aging eyes can see
Is anyone aware of:
A) whether triumph would assist us beyond saying "buy a new casing"
B) whether there is a known difference between FD casings used in different world regions or years (did he order the wrong part?)
C) if there is a known difference, can the part he has be adapted/shimmed to work? I'm not averse to modifying swing arm and brake plate mounts etc if needed
