case breather aka oil leak

I attempted to fix the oil leak on top of my engine today. I replaced the oil thermostat o-ring, the breather hose from the tank to the case, and the gasket under the hose fitting on the case. I installed this gasket dry. Is this correct? Oil is still coming from under this cover when the engine is revved. I don't want to tighten the nuts any more for fear of breaking a stud.

Oily in Texas

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Jeff Parker
72t

If it's paper then it is O.K. to use silicone. But if it's the graphite impregnated gasket, then dry is the only option. If you use silicone, don't use the cheap crap from the autoparts house. I prefer Toyota black. You can get it at any Toyota dealer. This stuff is the best I've ever used. Pretty pricey though. 25 bucks a tube or something like that.

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Tyson Schmidt
72 911 Cabriolet

Jeff, since the oil is still coming out, the paper gasket you put on is essentially ruined, now. No sealer of any kind will work on it now ... you can't clean all traces of the oil! Why not try Loctite 518, if you can find it at NAPA, or one of the Loctite Ultra sealers, the copper variety, preferably ... without any gasket. That is how the new families of gasket elininators are intended to be used. You will have to clean the area on the top of the crankcase, and the cover, too, very thoroughly! Try brake cleaner/degreaser. Then use Loctite 4649N Primer/Accelerator before applying the gasket eliminator. It would be a good idea to let whatever sealer/gasket eliminator set (cure) for 24 hours before running the engine ... if you want to have the best chance of fixing the leak!

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Warren Hall
1973 911S Targa

[This message has been edited by Early_S_Man (edited 02-25-2001).]