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  #1  
Old 02-10-2022, 07:24 AM
Frank69 Frank69 is offline
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Default Rear Main leak 350 V8
Friend has a 350 v8 Pontiac that has rear main leak. Does anyone have a remedy for this other than engine removal? Thanks, Frank69

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  #2  
Old 02-10-2022, 08:14 AM
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ponyakr ponyakr is offline
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I did it in my '69 GTO, only once, back in the early .70's.

Worked just fine. I then raced it in '73 & '74, having never removed the engine.

But, I was MUCH younger then.

Wouldn't attempt it now.

Would pull & try a 1-piece seal. Most say they work good, in most engines.

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Old 02-10-2022, 09:44 AM
Frank69 Frank69 is offline
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Thanks for the info.. Good suggestion. Frank69

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Old 02-10-2022, 09:46 AM
Frank69 Frank69 is offline
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Thanks for the info. Good suggestion. Frank69

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Old 02-10-2022, 10:48 AM
tom s tom s is offline
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I have not had any failure with the BOP 1 pc seal.50/50 with the 2pc.Tom

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Old 02-10-2022, 02:12 PM
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PunchT37 PunchT37 is offline
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I would verify it is an actual rear main seal leak 1`st. Oil pans are famous for leaking back there. Valley pan, dist gasket, etc.

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  #7  
Old 02-10-2022, 05:29 PM
Frank69 Frank69 is offline
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After close inspection it looks like both valve covers are leaking down back side of engine. Thanks Punch T37! Frank69

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