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Leaking Rear Main Seal in my '57 T-Bird

Posted By BPoland858 12 Years Ago
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BPoland858
Posted 12 Years Ago
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I think the rear main seal on my 57 312 is starting to leak more than just a few drips ans drops, when the engine is cold. Once the engine is up to operating temp, the leak seems to disappear. I havea few questions.

1) Do I have to yank the motor out of the car to fix this.

2) What is the best way to fix it. I only want to do this once, if possible.

3) Is this one of those repairs that require tearing down the bottom end of the motor, to do it right? My thinking is, if I have to go that deep into it, I may as well plan on arebuild.

Here's the catch. I have it from a very trusted source, that no matter what I do, the rear main seal on the 312 YBlock, has been and always will be, problematic.

What are your thoughts? If I have to pull the motor, I need to know that the fix will work. 80% - 90% success rate would be good.

Currently she runs pretty strong and does not burn any oil, but may be exibiting the occasional tell tale pops of the beginings of a burnt valve.

Your help and advice, is appreciated!



Bill Poland

312 V8 - in a 1957 T-Bird

Baltimore, Maryland




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