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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

oil leakage when engine hot

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Old Jan 23, 2011 | 07:30 PM
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TXCITYDPS
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oil leakage when engine hot

I've got a 70 F100 with a 302 auto trans. No oil leaks or drips when cold, but after you get her hot after driving oil leak appears. I cannot tell where it is coming from. It seems to be towards the rear neat transmission mount. Any ideas?
 
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Old Jan 24, 2011 | 04:52 PM
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Mike G
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Is it oil or is it trans fluid? Problem is, when moving, everything blows backwards, so it could even be coming from the front of the motor. You need to clean everything off real nice and then let it warm up sitting still. If no leak, then a short drive and back, then check again. Could be rear main seal allowing the leak down in front of the tranny and blowing back.
Just a guess, --Mike
 
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Old Jan 25, 2011 | 04:51 PM
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I think your right it looks like the rear main seal.
 
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Old Jan 26, 2011 | 11:03 AM
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Mike G
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Rear of the motor could be back of the intake, heads or the oil pan gasket, which of course is a lot easier to tackle...
 
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