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Valve Cover Oil Leaks

This is a discussion on Valve Cover Oil Leaks within the Flair Birds [1964-1966] forums, part of the Thunderbird Model Years category; I have a '65 with a 390 V8 Engine. I wanted to replace the valve covers because of oil leaks. ...

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Old 08-25-2018, 12:47 PM
 
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Exclamation Valve Cover Oil Leaks

I have a '65 with a 390 V8 Engine. I wanted to replace the valve covers because of oil leaks. I purchased a set of Edelbrock Valve covers and Felpro rubber gaskets. I have tried everything and have not been able to conquer the oil leak issues. I've managed to get the cover on the passenger side to seal up, but the driver's side will not. I've gone through different gaskets and tried both the old and new covers. I've done my level best to ensure that every surface is clean and free of any oil or dirt. Today I just went to Mac's auto parts and bought a set of chrome covers manufactured to original specs and yet another set of gaskets. Any ideas what I could be doing wrong? Any thoughts? Thanks in advance for your help!
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Old 08-31-2018, 09:08 PM
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I'm not an expert and I am having the same problem as you at the moment, but I'm still using my old gaskets. Haven't got to buying new as yet. I would use cork gaskets. First put your valve covers on without any gasket and see if the covers are flat and that they don't hit the intake manifold anywhere. If ok use a smear of RTV on the side of the gasket to be used on the cover only. Make shure the gasket sits flat and that the holes line up. Use the bolts upside down if you have to. Let it dry. When ready put the covers on and tighten down. Don't over tighten, only tighten until you feel the bolts stop. Good luck.
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390, gasket, oil, oil leak, valve cover


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