LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Bad Oil leak, Need Help!

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Old May 2, 2006 | 08:57 PM
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Exclamation Bad Oil leak, Need Help!

Lately I've been noticing an oil leak. It wasn't bad at first, but it has got to the point were I can't let it go anymore. The engine only has around 4,000 miles on it. I had my machine shop put the engine together for me.
The thing is I can't seem to point one it. Oil is all over the back-bottom of the oil pan(sides of the pan are dry), bellhousing cover, starter, oil filter & adapter. And the strange thing is oil is all over the back-sides of the block but the heads, back-top of the engine, and bell housing is dry. I have a strong feeling it is the oil pan and/or the rear main. I just don't get why it's on the sides of the block and the heads and intake are bone dry.
I'm going to try an oil die test but any info or pointers well help. It's just killing me that my almost new engine is leaking oil This car has tought me something, If it's not one thing than it something else.

thanks
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Old May 3, 2006 | 06:34 AM
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......
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Old May 3, 2006 | 06:57 AM
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Check the rear seals of the Intake Manifold. LT1's are notorious for this leak. Mine did it.
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Old May 3, 2006 | 03:30 PM
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well i have a similiar problem i just had a motor rebuild and im getting a small leak apparent in the same places white is talking about and cant figure out where its coming from i used a hell of a lot of RTV on the intake seals front and back and was feeling around but couldnt find any oil .... im thinking it might be the rear main seal but im kinda hesitant to say it is cause its on the top of the tranny places like that where it couldnt get flung to by moving parts its starting to bother me i havent lost any oil in the dipstick that i can tell and all my other fliuds seem good im just at a loss right now any ideas here either
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Old May 3, 2006 | 05:06 PM
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It might also be the rear main seal.
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Old May 3, 2006 | 05:23 PM
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yeah thats what im worried about
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Old May 3, 2006 | 05:41 PM
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I've already resealed the intake and i know it's not leaking. i found a kink in my pcv hose, so i'm think that might be what started it. I think i'm just going to brake down and go ahead and replace the oil pan gasket and rear main seal. And if that doesn't stop the leak i think i'm going to go insane.
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Old May 3, 2006 | 05:48 PM
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thats actually what I am in the middle of doing, replacing the front and rear main seals, and the oil pan gasket.
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I had the intake leak too. It was pretty bad. It was also leaking out the drain plug so that was throwing me for a loop!
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