santa
New member
thinkin i wanna change the jackshaft bearings in the phazer this year. im not much of a machanic. is this a hard task or is there any surprises i might run into?
PZ 1
Member
- Joined
- Mar 12, 2005
- Messages
- 987
It's not too bad. The lock collar on the left side bearing has to be rotated to remove it from the bearing. Loosen the set screw and there is a hole where a punch can be used to turn it. You may have to use a file on the shaft to remove any burrs or high spots so the bearing will slide off.
A surprise you might run into would be if the shaft is worn where the bearing sits. After time there can be movement of the bearing race on the shaft and if the shaft is undersized in that area it will need to be repaired or replaced. The shaft can be fixed at a machine shop or you may be able to find a good used one.
When reassembling, tighten the lock collar in the direction of shaft rotation. The pulley alignment and center to center distance should be checked.
You should not have to replace the bearing on the chaincase side. Those normally will last the life of the sled.
A surprise you might run into would be if the shaft is worn where the bearing sits. After time there can be movement of the bearing race on the shaft and if the shaft is undersized in that area it will need to be repaired or replaced. The shaft can be fixed at a machine shop or you may be able to find a good used one.
When reassembling, tighten the lock collar in the direction of shaft rotation. The pulley alignment and center to center distance should be checked.
You should not have to replace the bearing on the chaincase side. Those normally will last the life of the sled.
sleeper_dave
New member
jackshaft - is that the shaft that the brake is on? I'm replacing that bearing also, it spat out all the bearings and I drove about 10-15 miles home shooting sparks. Good thing i'm missing a couple body panels or i'd have never noticed (although I was wondering why it was going slower).
What do you mean tighten the lock collar in the direction of shaft rotation?
Mine looks like it has a setscrew and that's it, looks like the collar with the setscrew is part of the bearing (or what's left of the bearing). I drilled about half way through the frozen set screw before I said f it and used an air chisel to get the whole thing off the shaft. Looks like the new one goes into the housing with a snap ring, slides on the shaft, bolt the housing down, install the pulley and belt, spin every thing a couple of times to self align and then tighten the set screw. Am I missing something?
That's good news on the chain case side... I ain't fixin' what ain't broken.
What do you mean tighten the lock collar in the direction of shaft rotation?
Mine looks like it has a setscrew and that's it, looks like the collar with the setscrew is part of the bearing (or what's left of the bearing). I drilled about half way through the frozen set screw before I said f it and used an air chisel to get the whole thing off the shaft. Looks like the new one goes into the housing with a snap ring, slides on the shaft, bolt the housing down, install the pulley and belt, spin every thing a couple of times to self align and then tighten the set screw. Am I missing something?
That's good news on the chain case side... I ain't fixin' what ain't broken.