pilot bearing
Thread Starter
Pro
Joined: Oct 2010
Posts: 564
Likes: 12
From: Vancouver British Columbia
pilot bearing
Can someone tell me if the pilot bearing is pressed into the flywheel? If it is and you replace the flywheel, would changing the pilot bearing be a simple job not requiring a pilot bearing puller?
I have a leaky slave cylinder on a '02Z with 12k miles, (Clutch stick to the floor at times) I've hopefully accumulated all the neccessary parts for an entire clutch job, wouldn't want to do this twice.
1. Clutch assembly, (pressure plate/disc/flywheel)
2. Slave cylinder assembly complete with throwout/release bearing
3. Pilot bearing
I think i will ignor the master cylinder for now, it's a fairly simple job to replace later if needed.
Have I missed anything guys?
I have a leaky slave cylinder on a '02Z with 12k miles, (Clutch stick to the floor at times) I've hopefully accumulated all the neccessary parts for an entire clutch job, wouldn't want to do this twice.
1. Clutch assembly, (pressure plate/disc/flywheel)
2. Slave cylinder assembly complete with throwout/release bearing
3. Pilot bearing
I think i will ignor the master cylinder for now, it's a fairly simple job to replace later if needed.
Have I missed anything guys?
Drifting
Joined: May 2007
Posts: 1,545
Likes: 209
From: Huntersville, NC
clutch job
yes it is a press (interference) fit. Getting the old one out is harder than getting the new one in.
Yes, you are missing a remote bleeder.
Replace the master at the same time. It will have the cruds as does the slave. You will still have to remove parts to replace the master and you will have them off at clutch install.
Yes, you are missing a remote bleeder.
Replace the master at the same time. It will have the cruds as does the slave. You will still have to remove parts to replace the master and you will have them off at clutch install.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
The pilot bearing is pressed into the rear end of the crankshaft. It has no connection/attachment to the flywheel.
I agree with K24556 on adding the remote bleeder. It's the perfect time to do it with everything out.
I agree with K24556 on adding the remote bleeder. It's the perfect time to do it with everything out.
Melting Slicks
Joined: Oct 2007
Posts: 2,375
Likes: 424
At only 12k miles I would just replace the slave. None of the other parts are even broken in yet. (Unless it was all done 1/4 mile at a time)
The remote bleeder is a great suggestion. Now is the time.
The master you can do at your leisure.
The remote bleeder is a great suggestion. Now is the time.
The master you can do at your leisure.
Thread Starter
Pro
Joined: Oct 2010
Posts: 564
Likes: 12
From: Vancouver British Columbia
Thanks for your suggestions, I was thinking of the remote bleeder but may become a source of a potential leak or problems or so I held off. I think I will hold off on the master cylinder as the fluid is clear at all times using the ranger method every month or less. Car is not tracked, but bought the clutch assembly just in case it became contaminated with brake fluid. Maybe this is a case where the lack of use (12K) caused the slave seals to harden.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
If you replace the flywheel, make sure that you mark the relation of the crank to the old flywheel and transfer ANY off set balance weights that are in the old fly wheel and transfer them to the new one. Put the flywheel back in the same position.
The pilot bearing can be a PITA to get out & reinstall without damaging it. I used a torch to heat up the end of the crank (about 200 deg ) and the slide hammer popped it out easily. Heated the crank and freeze the bearing for easy reinstall.
NOTE! The end of the crank has a welsh plug in it that separates PRESSURIZED OIL from ATMOSPHERE. DO NOT damage it!!!
Are you POSITIVE that the slave is leaking? Ive see the bleed screw leak cause it wasn't tight.
BC
The pilot bearing can be a PITA to get out & reinstall without damaging it. I used a torch to heat up the end of the crank (about 200 deg ) and the slide hammer popped it out easily. Heated the crank and freeze the bearing for easy reinstall.
NOTE! The end of the crank has a welsh plug in it that separates PRESSURIZED OIL from ATMOSPHERE. DO NOT damage it!!!
Are you POSITIVE that the slave is leaking? Ive see the bleed screw leak cause it wasn't tight.
BC
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
It is not needed and only adds to the chances of having issues. GM doesn't install them for good reason. The guys who work on them in GM and GM racing don't use them. But if you feel the need go for it, it's your car.
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Thread Starter
Pro
Joined: Oct 2010
Posts: 564
Likes: 12
From: Vancouver British Columbia
If you replace the flywheel, make sure that you mark the relation of the crank to the old flywheel and transfer ANY off set balance weights that are in the old fly wheel and transfer them to the new one. Put the flywheel back in the same position.
The pilot bearing can be a PITA to get out & reinstall without damaging it. I used a torch to heat up the end of the crank (about 200 deg ) and the slide hammer popped it out easily. Heated the crank and freeze the bearing for easy reinstall.
NOTE! The end of the crank has a welsh plug in it that separates PRESSURIZED OIL from ATMOSPHERE. DO NOT damage it!!!
Are you POSITIVE that the slave is leaking? Ive see the bleed screw leak cause it wasn't tight.
BC
The pilot bearing can be a PITA to get out & reinstall without damaging it. I used a torch to heat up the end of the crank (about 200 deg ) and the slide hammer popped it out easily. Heated the crank and freeze the bearing for easy reinstall.
NOTE! The end of the crank has a welsh plug in it that separates PRESSURIZED OIL from ATMOSPHERE. DO NOT damage it!!!
Are you POSITIVE that the slave is leaking? Ive see the bleed screw leak cause it wasn't tight.
BC
Can't say for sure where the leak is coming from but it's wet at the bell housing and the master is definitly low at times. The dealership will have it all apart so I will have all the parts in case it has to be replaced. They are an established Chevy/Caddy/Corvette Dealership in Langley B.C. so hopefully I can trust them to do a good job.
Thread Starter
Pro
Joined: Oct 2010
Posts: 564
Likes: 12
From: Vancouver British Columbia
If you replace the flywheel, make sure that you mark the relation of the crank to the old flywheel and transfer ANY off set balance weights that are in the old fly wheel and transfer them to the new one. Put the flywheel back in the same position.
The pilot bearing can be a PITA to get out & reinstall without damaging it. I used a torch to heat up the end of the crank (about 200 deg ) and the slide hammer popped it out easily. Heated the crank and freeze the bearing for easy reinstall.
NOTE! The end of the crank has a welsh plug in it that separates PRESSURIZED OIL from ATMOSPHERE. DO NOT damage it!!!
Are you POSITIVE that the slave is leaking? Ive see the bleed screw leak cause it wasn't tight.
BC
The pilot bearing can be a PITA to get out & reinstall without damaging it. I used a torch to heat up the end of the crank (about 200 deg ) and the slide hammer popped it out easily. Heated the crank and freeze the bearing for easy reinstall.
NOTE! The end of the crank has a welsh plug in it that separates PRESSURIZED OIL from ATMOSPHERE. DO NOT damage it!!!
Are you POSITIVE that the slave is leaking? Ive see the bleed screw leak cause it wasn't tight.
BC
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Paul
This may sound stupid but,,,, Make SURE that you discuss the flywheel balance procedure with them. If you have ZERO VIBRATIONS in the drive train now,, you should have zero when they are done.
Trust me,, Not all GM Tech know corvette and corvette is DIFFERENT than most of the cars that they work on every day.
He may be well versed but then again, Ive seen thing go south at several GM dealerships...
The off set balance weights can become a big deal if the flywheel isn't referenced marked to the crank and the weights are not transfered to the exact same spot on the fly wheel and the new fly wheel isn't put back in the same spot. Hell, you may not even have any to worry about but,, at least you will know to inspect and see if there there.
Just a heads up.
BC
This may sound stupid but,,,, Make SURE that you discuss the flywheel balance procedure with them. If you have ZERO VIBRATIONS in the drive train now,, you should have zero when they are done.
Trust me,, Not all GM Tech know corvette and corvette is DIFFERENT than most of the cars that they work on every day.
He may be well versed but then again, Ive seen thing go south at several GM dealerships...
The off set balance weights can become a big deal if the flywheel isn't referenced marked to the crank and the weights are not transfered to the exact same spot on the fly wheel and the new fly wheel isn't put back in the same spot. Hell, you may not even have any to worry about but,, at least you will know to inspect and see if there there.
Just a heads up.
BC
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
Bill, it's not stupid. If it's not done and there is a vibration it's too late to go back and do those simple steps. I would think you either have to randomly try the weights in different holes until the vibration is better or pull the engine apart and re-balance it.