gas in oil

D15, D16, D17 and Mini-Me swaps
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gas in oil

By JDMD15B
- Tue Dec 08, 2009 9:51 pm #160655 what could cause me to get lots of gas in my oil? i was told head gasket but wantd to check for anyother possibilities...
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By Dippin_EG
- Tue Dec 08, 2009 11:18 pm #160669 headgasket, check for oil in the coolant as well.
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By JDMD15B
- Tue Dec 08, 2009 11:59 pm #160677 coolant has been draind for awhile now...
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By JDMD15B
- Wed Dec 09, 2009 1:11 am #160693 maybe a month if that.drain the coolant cause i was runnin straight water and didnt want it to freeze
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By That One Dude
- Wed Dec 09, 2009 2:23 am #160703 Blown piston rings? Headgasket wouldn't allow gas to get in the oil.
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By JDMD15B
- Wed Dec 09, 2009 6:02 am #160753 compression test showed over 160+ in all 4 cylinders
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By ikon
- Wed Dec 09, 2009 6:20 am #160758 are you sure its oil.
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By JDMD15B
- Wed Dec 09, 2009 6:30 pm #160853 what do you mean am i sure its oil?
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By Dippin_EG
- Wed Dec 09, 2009 9:50 pm #160901 gas could get into the oil from badly leaking intake/exhaust valves as well, but if the compression test is good?

and you should do a leakdown test as well, that will find the culprit
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By JDMD15B
- Wed Dec 09, 2009 10:09 pm #160911 sorry idk what a leak down test it...
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By egsedanguy
- Wed Dec 09, 2009 10:12 pm #160912 chances are it might be a leaky valve. intake side. you need to remove the head from the block and take it to a machine shop. they can do it for you. no more than 50bucks.
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By Dippin_EG
- Wed Dec 09, 2009 10:33 pm #160920
JDMD15B wrote:sorry idk what a leak down test it...


basically, a leakdown test is where you put air pressure on the combustion chamber with a leakdown kit while the piston is at TDC on the compression stroke (when the intake and exhaust valves are fully closed). If it is leaking, you would be able to narrow it down through checking for the sound of air through various parts of the engine, i.e. oil cap, intake manifold, of exhaust manifold. theres more to it, but that is basically what it is.
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By JDMD15B
- Wed Dec 09, 2009 11:19 pm #160924 damn... i was hopin not to have to pull the motor apart cause its strong as a bitch...but guess you gotta do what you gotta do...
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By egsedanguy
- Wed Dec 09, 2009 11:31 pm #160931
JDMD15B wrote:damn... i was hopin not to have to pull the motor apart cause its strong as a bitch...but guess you gotta do what you gotta do...


just swap in a ls and call it a day. :thumb:
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