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Old 01-20-2014, 08:01 PM
RedEye RedEye is offline
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Join Date: Aug 2012
Location: Grand Rapids, MI, MI
Cobra Make, Engine: StreetBeasts, 331 Stroker
Posts: 149
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Default 331 Rear Main Seal Leak After 1000 Miles

Hey All, my rear main seal is leaking oil into the bell housing. Thankfully I caught it before it rendered my plate and clutch useless. I have never replaced a rear main seal before and would like some directions. I'm replacing a national single piece seal.

I'm also surprised that it would go after so few miles. Engine was built by a professional engine shop in town and it appears from the outside to be a reasonably good install. I may find a bur or something once it's pulled. Appears that most of the oil is coming out of the block side but it's hard to tell.

Any advice much appreciated.
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