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

Oil cap condensation?

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Old 01-11-2010 | 11:03 AM
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Default Oil cap condensation?

has anyone gotten condensation in their oil cap that almost made it look like a blown head gasket only to drain the oil and have it come out fine? its really the only thing that i can think of being the reason for the milky cap.
Old 01-11-2010 | 11:21 AM
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Yup..that's what it is.

Rookie..
Old 01-11-2010 | 11:44 AM
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Yep - a small amount of crankcase condensation is normal.
Old 01-11-2010 | 11:53 AM
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I always get the same, no worries.
Old 01-11-2010 | 12:09 PM
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Originally Posted by the_merv
Yup..that's what it is.

Rookie..
Never had it happen before lol. maybe because its been sitting more since the snow?
Old 01-11-2010 | 12:47 PM
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you prob didnt check it, then it burns off after a few miles.
Old 01-11-2010 | 02:04 PM
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happens all the time in winter/cold weather.

saw it everyday over last winter when I worked at a Tire/Lube express.
Old 01-11-2010 | 02:08 PM
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Originally Posted by 86formula
Never had it happen before lol. maybe because its been sitting more since the snow?
No it did it cause it knew you would freak out and ask..
Old 01-11-2010 | 03:00 PM
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Originally Posted by the_merv
No it did it cause it knew you would freak out and ask..
haha its not even my car, well not anymore. its my g/fs now (me being the mechanic was included in the sale apparently lol) thanks guys, i wouldve felt bad telling her that her car was going to be down until i came home from iraq haha
Old 01-11-2010 | 10:36 PM
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You being the mechanic..ya she's going to think that till she sees you getting on here asking us.
Old 01-12-2010 | 08:50 AM
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Good damn that a relief. I just rebuilt my engine and i saw that on the oil cap. Its good to hear that its just a some condensation. I was about to head over to my engine rebuilders house and raise hell. Now thats solved i gotta go find out WTF is goin on with my 4800-5200 rpm miss....
Old 01-12-2010 | 01:28 PM
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Originally Posted by the_merv
You being the mechanic..ya she's going to think that till she sees you getting on here asking us.
I'm glad she doesn't visit car forums
Old 01-12-2010 | 01:58 PM
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Tell her you only work on racecars
Old 01-12-2010 | 02:09 PM
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**** then she'd be thinking it was a Race Car and run everyone..
Old 01-12-2010 | 02:46 PM
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I know what you've read is what you were hoping for, but I disagree that it's "normal". But I'll hold off on going farther until the other shoe drops.

In the meantime, I suggest you pressure check the cooling system with the pressure testing tool borrowed from AutoZone, O'Reilly's, etc. to head off killing your bearings.

Jake
Old 01-12-2010 | 06:02 PM
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Originally Posted by the_merv
**** then she'd be thinking it was a Race Car and run everyone..
she tried to run my heads/cam car, it discouraged her from racing people
Old 01-12-2010 | 08:47 PM
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Originally Posted by JAKEJR
I know what you've read is what you were hoping for, but I disagree that it's "normal".
I've seen it quite a few times with my car..and that's a brand-new Engine.

Last edited by the_merv; 01-13-2010 at 02:19 PM.
Old 01-13-2010 | 02:06 PM
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The flip side of that coin is neither my 388 LT1, my previous 355, my 415 L98 nor my son's 96 LT1 (just to name a few) ever had that issue and that's not to mention all the other engines I've built and worked on. So, for me, it's not "normal".

My thinking, and the way I approach issues like these, is it's better to test to be sure rather than to assume it's "normal".

My thinking also makes me wonder why it is that I see so many posts about spun rod bearings on all the Forums I visit. Could this be one possible cause and that the engine's trying to tell something but no one's listening?

Of course those who are experiencing this condition can choose to write it off and ignore it. It's just I wouldn't.

I'm just trying to help by giving the best advice I can, not start a fight over this.

Jake
Old 01-13-2010 | 02:20 PM
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Or it could be the fact we live in humid climates.

I'm willing to bet that when I get back from Iraq here in may and I pop my Oil Cap off of my Car and my Truck that it will be milky looking..and they both went in to the Storage Unit running flawlessely.

It's looked like that every other time I have gone..

Last edited by the_merv; 01-13-2010 at 03:03 PM.
Old 01-13-2010 | 02:54 PM
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Happens to my car every winter. normal.....



what state do you live in JakeJR?


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