| Valve Cover Gasket -Cork or Rubber? [message #363105] |
Sun, 28 March 2021 09:12  |
rjw
Messages: 697
Registered: September 2005
Karma:
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Senior Member |
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My GMC is currently laid up in my garage with the front-end suspension and steering completely apart. I am waiting for new parts to be be delivered and rebuildable parts (control arms) to be rebuilt by Dave Lenzi. I am fortunate that Dave lives less than an hour away from me.
I figure this is a good time to address some chronic oil leaks. These leaks seem to be coming from both valve covers and my Ragusa transmission oil pan.
The current leaking valve cover gaskets are cork, that were glued only to the covers. When I installed them the last time, I tried to make sure the sealing areas were flat. I tried not to over torque the bolts since the service manual says to torque them to 7 Ft Lbs. But they still leak.
Any suggestions on how to avoid valve cover leaks?
Also, my Ragusa transmission oil pan keeps leaking (seeping). Maybe I should have kept the old pan that didn't leak.
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com
Roller Cam 455, TBI+EBL, 3.42 FD, 4 Bag, Macerator, Lenzi (brakes, vacuum system, front end stuff), Manny Tranny, vacuum step, Tankless + OEM water heaters.
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