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Old 08-01-2013, 07:59 AM
Larry Jones Larry Jones is offline
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Default rear main seal engine

I thing I have some spotting where the engine connects to the transmission. What is exactly involved in changing the seal. Plus whats the best additive to add to the engine oil to stop it. Plus with the addictive could it mess up any good seals. Plus how does this stuff work. Larry
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Old 08-01-2013, 10:40 AM
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jopizz jopizz is offline
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I've never had any additives stop a rear main seal leak. If you want to know what's involved in changing it look in the Technical Resource Library. There's instructions on how to replace it. If it's only a couple of drops I wouldn't worry about it.

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Old 08-01-2013, 11:39 AM
Joe Johnston Joe Johnston is offline
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Is this the same engine you had replaced a year or two ago? It shouldn't be leaking already unless you have driven it 10's of thousands of miles. Perhaps it was defective or installed incorrectly? Did you engine rebuilder give any warranty?
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Old 08-01-2013, 12:04 PM
Larry Jones Larry Jones is offline
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Default rear seal

Well Joe the guy didn't do a good job on the intake gasket by not applying any RTV to the corners. So he didn't do a good job with the seal either. Larry
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Old 08-01-2013, 12:08 PM
Larry Jones Larry Jones is offline
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Default Rear seal leaks a few drops.

Thanks for replying to me. If I do try for the some stop leak is that going to mess up the good gaskets elsewhere John.
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Old 08-01-2013, 02:19 PM
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simplyconnected simplyconnected is offline
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Ok so, after driving around on this engine for years, you develop a trans leak, then you blame the engine rebuilder?

Hmmmm... how does that work, I mean, Ford only offered a 12 month warranty on the car when it was factory fresh!

Maybe you broke something on the transmission and now it's leaking, I don't know...

I suggest you bring it to a good mechanic to have the trans thoroughly inspected and repaired. Joe is right, good mechanics usually offer a warranty on their work. In any event, the car should not leak. - Dave
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