Rear main puking, clutch slipping, brand new clutch - ZR-1 Net Registry Forums

Corvette95 · 02-10-2021

Correct me if I am wrong, but if the shop used hydraulic fluid/grease to remove the pilot bearing that will damage the rear main seal as would driving the pilot bearing in too far? This would account for the problems? (just noticed after I replied that the former owner declined the rear main repair, but my reply still stands as help in the clutch replacement)

Ccmano · 02-10-2021

Grease or hydraulic fluid to remove the pilot bearing wouldn't damage the rear main seal but it could push in the oil galley plug in the end of the crankshaft which could cause an oil leak in that area. It would become immediately visible once the flywheel was removed, assuming one is looking for it. While possible, I'd say that's one of the more remote possibilities.
H

FailureCoach · 02-10-2021

Quote:

Originally Posted by Ccmano

Grease or hydraulic fluid to remove the pilot bearing wouldn't damage the rear main seal but it could push in the oil galley plug in the end of the crankshaft which could cause an oil leak in that area. It would become immediately visible once the flywheel was removed, assuming one is looking for it. While possible, I'd say that's one of the more remote possibilities.
H

That doesn?t sound like fun. I?ll have to go back, and look over the shop invoices. I suppose I won?t know much until I get in there. I just hope it goes smoothly. At the end of the day it?s all just nuts, bolts, and money, right?

rkreigh · 02-17-2021

if someone uses the old mechanic trick to pack the pilot bearing with grease and try and pound it out it will push out a crank oil galley plug

you would notice the loss of oil pressure. Look over the clutch disk and if it's hot and glazed don't use it.

I have good pressure plate disk if you need it.

I upgraded to a new stage II I'm dying to try out.

02-10-2021	#1
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,140	Re: Rear main puking, clutch slipping, brand new clutch Correct me if I am wrong, but if the shop used hydraulic fluid/grease to remove the pilot bearing that will damage the rear main seal as would driving the pilot bearing in too far? This would account for the problems? (just noticed after I replied that the former owner declined the rear main repair, but my reply still stands as help in the clutch replacement) __________________ Corvette95 Registry and Forum (************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 Last edited by Corvette95; 02-10-2021 at 06:19 AM.*

02-10-2021	#2
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,843	Re: Rear main puking, clutch slipping, brand new clutch Grease or hydraulic fluid to remove the pilot bearing wouldn't damage the rear main seal but it could push in the oil galley plug in the end of the crankshaft which could cause an oil leak in that area. It would become immediately visible once the flywheel was removed, assuming one is looking for it. While possible, I'd say that's one of the more remote possibilities. H

02-17-2021	#4
rkreigh Join Date: Jan 2004 Location: Alex VA Posts: 1,080	Re: Rear main puking, clutch slipping, brand new clutch if someone uses the old mechanic trick to pack the pilot bearing with grease and try and pound it out it will push out a crank oil galley plug you would notice the loss of oil pressure. Look over the clutch disk and if it's hot and glazed don't use it. I have good pressure plate disk if you need it. I upgraded to a new stage II I'm dying to try out.