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| | |-+  Rear Main Seal leak
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Author Topic: Rear Main Seal leak  (Read 1796 times)
jdv69z
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69 RS Z/28 52E


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« on: June 13, 2007, 03:58:37 PM »

I have the traditional rear main seal oil drip on my 69 Z 302. Engine runs well, so this is just an annoyance. Can this be fixed removing only the pan, oil pump, and rear main cap?, i.e. without major disassembly. And with a high degree of confidence it will not leak again? Or live with it? Adding oil is no big deal, but it gets oil all over the bottom of the engine/trans, the major cause of my annoyance. Thanks.

Jimmy V.
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Jimmy V.
Jerry@CHP
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« Reply #1 on: June 13, 2007, 10:16:16 PM »

It can be done,  Have done this job many times.  Usually does the trick but in general these rear main seals are not perfect.  There is always a tad of minor seepage.  If it's a bad leak, I would replace it.

Good luck,

JM
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jdv69z
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69 RS Z/28 52E


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« Reply #2 on: June 14, 2007, 07:15:45 AM »

Thanks Jerry. It's not bad, I can live with it. I was just wondering if there is some "secret' or "trick" to insure it will not leak again if I re-did it. I had the motor redone many years ago by a "professional", and it was leaking again in 3 months. So much for my clean undercarriage!! Maybe small blocks, like dogs, like to leave their mark!

Jimmy V.
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Jimmy V.
pickelnose
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« Reply #3 on: June 14, 2007, 06:30:07 PM »

this has worked for me.stagger the ends of the seal about 1/4 inch so the seal ends are in the block and not with the parting line of the cap to block.also use a small amount of gasket sealent on the cap beside the seal where it mates with the block so oil cant seep between the cap and block. 
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