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Old 09-06-2011, 12:41 AM   #1 (permalink)
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302 block rear main seal

Can it be replaced with the removal of the pan? I believe it's there where a leak is.

Thank you.

Brian Palmer
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Old 09-06-2011, 12:54 AM   #2 (permalink)
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You have to remove the flywheel and clutch
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Old 09-06-2011, 01:07 AM   #3 (permalink)
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Thought so. Thank you, as always, Bill.
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Old 09-06-2011, 01:31 AM   #4 (permalink)
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Here Brian, this might help

How to Install a Ford 302 Rear Main Seal | eHow.com
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Old 09-06-2011, 02:56 AM   #5 (permalink)
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Try replacing the pan gasket first, using some hi-temp sealer on the front and rear curved portions. I had oil dripping down the front plate of the bell housing and it turned out it was from the rear of the pan.
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Old 09-06-2011, 03:47 AM   #6 (permalink)
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Maybe. Early 302 blocks have a 2 piece seal. You have to remove the oil pan and rear cap, but not the trans, clutch or flywheel. This is a much easier job in a Cobra.

Newer 5.0 blocks use a 1 piece seal, that's installed from the back. You don't need to remove the pan or cap, but the trans, BH, clutch, and flywheel all have to come off. A real pain in most cars.
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Old 09-06-2011, 10:41 PM   #7 (permalink)
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make sure its not the valve covers
work from the top down
wipe it clean and re-torque the covers
oil on sbf tend to drip near the rear main, its physics that drip will be at the block plate.
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Old 09-06-2011, 10:51 PM   #8 (permalink)
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As others have said, all oil leaks look like a rear main seal on a small block.
I was planing on pulling my engine next winter to replace mine. Installed a new pan and 95% of the leak went away. I am betting on the valve covers for the other 5%.
Good luck,
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Old 09-07-2011, 03:05 AM   #9 (permalink)
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If it is the just the pan gasket, then there are newer designed one piece molded pan gaskets out there that are really nice, such as the MrG #6683

Mr. Gasket 6683 - Mr. Gasket Oil Pan Gasket Sets - Overview - SummitRacing.com

..which is most likely just a repackaged Victor Reinz or ROL part.

Quote:
Originally Posted by Bill C View Post
Try replacing the pan gasket first, using some hi-temp sealer on the front and rear curved portions. I had oil dripping down the front plate of the bell housing and it turned out it was from the rear of the pan.
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