LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

HUGE Oil Leak =(

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Old Aug 7, 2003 | 12:35 AM
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Unhappy HUGE Oil Leak =(

so outa no where im getting a HUGE oil leak under my car its PRETTY BAD its NOT the pan gasket cause all that stuff is brand new and the oil is coming from inside the flywheel cover! im thinking rear main??? thing is that the rear main was replaced when i did my stroker which was less than 4k miles ago

what do u guys think?? thats all i can think of! ive NEVER seen an oil leak like this and the only problem ive never had that i can think would cause somthing like this is the rear main
Old Aug 7, 2003 | 12:48 AM
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Sounds like your rear main to me, shouldnt be blown this fast thou, maybe it was put in wrong, or defective? Definatly sounds like the rear main thou, a buddy of mine had that same leak on his truck
Old Aug 7, 2003 | 12:52 AM
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Check the rear of your intake manifold. Did you use the little rubber gaskets that go behind and in front of the lifter valley? If you did that could be the problem, because they suck and often blow out. Using striaght silicone works great. LT1's are known to leak from behind the intake manifold. I would check that first.
Old Aug 7, 2003 | 12:55 AM
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Originally posted by m0nk
Sounds like your rear main to me, shouldnt be blown this fast thou, maybe it was put in wrong, or defective? Definatly sounds like the rear main thou, a buddy of mine had that same leak on his truck
yea i remember that bish was tricky to get on i could have possibly done it wrong im not gonna lie im not saying that i meant to but it was my first time having to fool with that thing and i did my best

whats the procedure on putting that bish on??? isnt there a tool for it or something??
Old Aug 7, 2003 | 01:04 AM
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Originally posted by BottleFed94Z
Check the rear of your intake manifold. Did you use the little rubber gaskets that go behind and in front of the lifter valley? If you did that could be the problem, because they suck and often blow out. Using striaght silicone works great. LT1's are known to leak from behind the intake manifold. I would check that first.
lol yea mine isnt much of an LT1 nemore

no its not that though! i have copper silicone on the front and rear of the intake! she seals just fine! this is a VERY noticible leak... like i said it looks like its coming from the flywheel housing! you can tell it leaks STRAIT from the the flywheel housing, down, then back towards the tranny so it wouldnt be coming from anywhere in front of the flywheel housing!....

its gotta be that damn rear main!
Old Aug 7, 2003 | 01:09 AM
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i have the same problem. we are stumped. I just replaced the rear main seal. and the pan that covers the flex plate is filled with oil and the hole underside of the trani is covered
Old Aug 7, 2003 | 01:12 AM
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I feel your pain, I am burning oil and im not sure where its from, god I hope its not the rings, im changing the valve seals in the next 2 weeks while im replacing my clutch, no car for another week, this makes 3?4? in a row
Old Aug 7, 2003 | 07:18 AM
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I had the same problem and it turned out to be the rear main seal. Your oil pan gasket has metal shims in the gasket. What happened to me is the metal shim of my old gasket was still on the oil pan stud (the stud attached to the rear of the block that bolts up to your oil pan) so when I put the new gasket on it left a little gap between the oil pan and block.
Old Aug 7, 2003 | 07:18 AM
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I had the same problem and it turned out to be the rear main seal. Your oil pan gasket has metal shims in the gasket. What happened to me is the metal shim of my old gasket was still on the oil pan stud (the stud attached to the rear of the block that bolts up to your oil pan) so when I put the new gasket on it left a little gap between the oil pan and block.
Old Aug 7, 2003 | 01:08 PM
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Originally posted by m0nk
I feel your pain, I am burning oil and im not sure where its from, god I hope its not the rings, im changing the valve seals in the next 2 weeks while im replacing my clutch, no car for another week, this makes 3?4? in a row
i swear some people just DONT read the topics before they post
Old Aug 7, 2003 | 01:42 PM
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If it is the intake you should be able to feel on the back side of the passenger head (below the intake) and after your car has heated the intake should start leaking. If you have to do the intake again use copper RTV....I did and no leaks yet on the 2nd try! (first try was red RTV)

Joe

Actually where the head meets the intake.
Old Aug 7, 2003 | 02:32 PM
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Originally posted by FireAm94
If it is the intake you should be able to feel on the back side of the passenger head (below the intake) and after your car has heated the intake should start leaking. If you have to do the intake again use copper RTV....I did and no leaks yet on the 2nd try! (first try was red RTV)

Joe

Actually where the head meets the intake.
are you serious

welcome to "PEOPLE THAT DONT READ THE WHOLE THREAD PART II"
Old Aug 7, 2003 | 02:38 PM
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It leaks out the back of the intake...near where the EGR pipe goes down. The pipe heats up and so does the intake and the intake lifts spilling oil. It's on the firewall side of the block...sounded confusing lol.

Joe
Old Aug 7, 2003 | 04:17 PM
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Originally posted by FireAm94
It leaks out the back of the intake...near where the EGR pipe goes down. The pipe heats up and so does the intake and the intake lifts spilling oil. It's on the firewall side of the block...sounded confusing lol.

Joe
PART III

PLEASE READ THE TOPIC BEFORE YOU POST
Old Aug 7, 2003 | 04:22 PM
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Originally posted by InjectedSS
PART III

PLEASE READ THE TOPIC BEFORE YOU POST

instead of bitchin go drop your tranny and find out for sure. ITs either your oil pan gasket or your rear main seal. GEt to work



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