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

Burning oil bad

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Old Apr 14, 2011 | 12:43 PM
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Default Burning oil bad

lt1 is burning oil badly only 4000 miles on rebuild whats some things i could try do before tearing it down and replacing rings?
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Old Apr 14, 2011 | 12:44 PM
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Originally Posted by Mitch383LT1
lt1 is burning oil badly only 4000 miles on rebuild whats some things i could try do before tearing it down and replacing rings?
Intake gaskets?
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Old Apr 14, 2011 | 01:14 PM
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How did you break the new motor in ???
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Old Apr 14, 2011 | 01:22 PM
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Try to narrow it down to cylinders. Pull spark plugs to see what's wet. Maybe valve seals or an intake gasket.
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Old Apr 14, 2011 | 06:24 PM
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Originally Posted by djjab57
How did you break the new motor in ???
Very important question...
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Old Apr 14, 2011 | 07:34 PM
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What are the specs on the engine?
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Old Apr 14, 2011 | 08:27 PM
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Anyone else but me think valve stem seals?
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Old Apr 14, 2011 | 08:44 PM
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Valve seals are possible, as are intake gaskets,, rings/pistons, irresponsibly ported heads can even suck oil through an overly thin port wall. Lack of sealer on the intake rocker studs could even do it
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Old Apr 15, 2011 | 07:52 AM
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Originally Posted by l 95 Trans Am l
Anyone else but me think valve stem seals?
thats my first guess.......and for $30 and an afternoon of work its worth a shot....IMO

Originally Posted by 96capricemgr
Valve seals are possible, as are intake gaskets,, rings/pistons, irresponsibly ported heads can even suck oil through an overly thin port wall. Lack of sealer on the intake rocker studs could even do it
yep......my port walls break into a few of my rocker bolt holes.......something like that could do it but i dont think it would burn THAT much...........rings could happen but i would say there is another issue at that point.........im leaning towards intake gaskets or valve seals.....
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Old Apr 15, 2011 | 10:36 AM
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I just use teflon sealer on the exhaust rocker studs.
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Old Apr 15, 2011 | 12:30 PM
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Anybody thought of running a compression or leakdown test?
hmmmm.....
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Old Apr 15, 2011 | 01:26 PM
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How can intake gaskets leak oil? There's no pressure to push it threw.
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Old Apr 15, 2011 | 02:45 PM
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Originally Posted by Mitch383LT1
How can intake gaskets leak oil? There's no pressure to push it threw.
HMMM. your right but what does a cylinder do on the downstroke? maybe sucks air though the intake?????? oh yea it does.
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Old Apr 15, 2011 | 03:58 PM
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Originally Posted by Mitch383LT1
How can intake gaskets leak oil? There's no pressure to push it threw.
Hey thanks for answering our questions.
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Old Apr 15, 2011 | 04:16 PM
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Originally Posted by RamAir95TA
Hey thanks for answering our questions.
http://youtu.be/-aJROW6cuEM


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Old Apr 15, 2011 | 04:23 PM
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An intake gasket leak to the lifter valley will suck oil. Had a set of blue Felpro gaskets delaminate the silicon bead from the paper and this happened. I like the gray gaskets better.
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Old Apr 15, 2011 | 08:41 PM
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Originally Posted by Mitch383LT1
How can intake gaskets leak oil? There's no pressure to push it threw.
You can really mess up the install, and loose a bit of oil out of the china rails and the bottom of the intake runners is right there in the in the lifter valley. Likely no, but I've seen it done.
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