T
TLKDPROD
Well-known member
I noticed a little slack in the bearing right behind my secondary clutch this evening, thought it was a slack in the secondary but actually not. Had a closer look and noticed a 1/64" play in between the aluminum bearing carrier and the bearing iteslf... So I took that whole thing apart and realized that the bearing carrier & bearing both have had a hard time handling the torque or HP that the 800 motor creates... Don't get me wrong here; the bearing still spins very freely, maybe too freely actually... it is not seized at all. Oh, and by the way it's a China bearing.
Am I the only one ? If you have an 800, please check and let me know.
I think that this torque, teamed up with the thin walled aluminum bearing carrier (that probably expands and ovalizes when motor & clutch are hot) created that free play. I checked my other bearings and they were still fine. I just guess that this might be one of the hardest working bearing of all 4 countershafts (top and bottom) considering heat AND radial load because of the secondary being pulled by the primary pretty hard and proximity of the motor.
Just got off the phone with Tony and he was worried that this would happen some day on all snow-hawks but was kind of surprised that it happened to me after one season... The problem here, I think, is that the features of the '08 SH frame is pretty much all the same as the good'ol 503... A good'ol 503 won't wear these components out within 1 season... There's no way we can compare the 503 motor with the 800 torquewise and HPwise and the bearings are the same. I don't know here if these 6206 bearings are heavy enough for the 800... I checked on the ski-doo website to see which bearing they're using there but can't get a bearing number, only got a ski-doo part number... if someone could come up with this info i'd appreciate !
If i'm the only one with this problem, then it may mean that the bearing carrier I had there when I bought it was overbored by just a few thous and things got worst under heavy work. I'll get another one and won't talk about it...
If i'm not the only one with this problem then we should look at this further and come up with the best solution. Steel carrier, bigger bearing... or both...
One thing's sure is I'm replacing all of these 4 countershaft china bearings with quality SKF units. I honestly think everybody owning a 6 or 800 should do the same to avoid frustrating breakdown.
Am I the only one ? If you have an 800, please check and let me know.
I think that this torque, teamed up with the thin walled aluminum bearing carrier (that probably expands and ovalizes when motor & clutch are hot) created that free play. I checked my other bearings and they were still fine. I just guess that this might be one of the hardest working bearing of all 4 countershafts (top and bottom) considering heat AND radial load because of the secondary being pulled by the primary pretty hard and proximity of the motor.
Just got off the phone with Tony and he was worried that this would happen some day on all snow-hawks but was kind of surprised that it happened to me after one season... The problem here, I think, is that the features of the '08 SH frame is pretty much all the same as the good'ol 503... A good'ol 503 won't wear these components out within 1 season... There's no way we can compare the 503 motor with the 800 torquewise and HPwise and the bearings are the same. I don't know here if these 6206 bearings are heavy enough for the 800... I checked on the ski-doo website to see which bearing they're using there but can't get a bearing number, only got a ski-doo part number... if someone could come up with this info i'd appreciate !
If i'm the only one with this problem, then it may mean that the bearing carrier I had there when I bought it was overbored by just a few thous and things got worst under heavy work. I'll get another one and won't talk about it...
If i'm not the only one with this problem then we should look at this further and come up with the best solution. Steel carrier, bigger bearing... or both...
One thing's sure is I'm replacing all of these 4 countershaft china bearings with quality SKF units. I honestly think everybody owning a 6 or 800 should do the same to avoid frustrating breakdown.
