When I installed my shimano 105 crank awhile back, I didn't take much notice to the 'raised' spline. As I remember it, I just moved it to a position that seemed to fit. Is it easy to misalign the splines on those cranks?
The reason I ask is because I am getting this sound from what I think is the crank. It's a mix between the sound you'd hear if you threw a penny at an aluminum frame, or think of it as two small pieces of metal pressed together VERY tight, and while they're still compressed, move them across eachother. I just hope I didn't install the crank wrong, it seemed like a very easy thing since I just fit it on there and put the bolt in. Also I didn't grease the inside of the BB spindle, should I have done that?
All of the raised splines are the same, there is no special "notch". The parktool.com site simply recommends that you position any one of the splines at the 12:00 position with the crankarm pointing straight down to help ensure that you don't misalign, but in practice it's difficult for me to see how you could misalign them. Anyway, when I installed my Ultegra cranks the first time I didn't follow this procudure but I recently had to pull and re-install the cranks and the splines were fine so I doubt you've hosed anything.
When I installed my shimano 105 crank awhile back, I didn't take much notice to the 'raised' spline. As I remember it, I just moved it to a position that seemed to fit. Is it easy to misalign the splines on those cranks?
The reason I ask is because I am getting this sound from what I think is the crank. It's a mix between the sound you'd hear if you threw a penny at an aluminum frame, or think of it as two small pieces of metal pressed together VERY tight, and while they're still compressed, move them across eachother. I just hope I didn't install the crank wrong, it seemed like a very easy thing since I just fit it on there and put the bolt in. Also I didn't grease the inside of the BB spindle, should I have done that?
If you're worried about it just pull the crankarm, inspect for any damage, grease according to parktool.com recommendations and re-install. Yes, would be a good idea to grease the threads inside the spindle.
Anyway, when I installed my Ultegra cranks the first time I didn't follow this procudure but I recently had to pull and re-install the cranks and the splines were fine so I doubt you've hosed anything.
It's real easy to hose the interface if the splines on the spindle are not aligned properly with the grooves in the crankarm, before cranking down on the fixing bolt.
You can definitely and easily misalign the splines. If you notice the wrench getting difficult to turn and the pedal really isn't very far in on the BB, then you've screwed up. And you'll wound the teeth on the inner part of the crank.
So do low torque turning on the allen (ie. small end) until you can see that it's going on with a number of revolutions and it's getting much closer to the BB shell. The other side isn't as difficult, because you'll see the angular difference w/r to the other crank if it's not aligned properly.
Careful!
drewski said:
check the torque to make sure it isn't too loose too (both on the BB && the crank-bolts).
