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Old 08-04-2017, 12:15 PM   #1
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Default Stubborn oil pan leaks

Long project, almost complete but leaking like a bastard.

88 2.3T in a 96 Ranger. Stock 88 pan, I've tried it with two different gaskets and most recently no gasket and thick rtv. It has leaked oil every time, accumulating and dripping from between the block and transmission. I have replaced the rear main within the last 10,000 miles and confident it is not the problem.

Is there a better pan than the stamped tbird pan ?? I test fit the aluminum ranger pan but had interference so didn't use it.

The pan I'm using has what look like rubber alignment strips along the rails? Im thinking maybe these were from the factory to aid assembly?? It seems these lines are not straight and previously caused the gasket to distort when it tightened down. Frustrated to pull the pan again.
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Old 08-04-2017, 06:57 PM   #2
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Did you RTV the corners of the rear main cap when installed? The cap itself, at the block.
gumby - beauty may fade, but stupid is forever!

past rangers: 97 XLT, 86 longbed turboranger, 03 EDGE, 02 XLT, 93 XLTurbo, 95 B2300T 4x4
current rangers: 04 B3000, 89 "S" RaceTruck
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Old 08-04-2017, 11:31 PM   #3
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This past time I laid the RTV thick everywhere I could get it. Yes the cap got bathed in RTV too, I read somewhere that skipping the gasket and going thick with sealer would do the trick.
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Old 08-05-2017, 03:42 PM   #4
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he means where the rear main cap mates to the block

NOT where the oil pan seals to the main cap

Also what brand and color of RTV did you use?

if you had any sort of oil film on the pan or block, the rtv will not seal and cause a leak

next, on the stamped pan, are you using the load spreading bars that it had from the factory?

did you check the oil pan holes for distortion?

Since its at the back of the block, did you also check the oil galley plugs behind the flywheel?
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