Water under oil cap & oil on TB
10-31-2004, 12:21 AM
#1
Staging Lane
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Join Date: Jun 2002
Location: Pearland, TX
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Water under oil cap & oil on TB Just got my car back last week from installing a g5x3 and S2 heads and I'm still working out some of the bugs. What will cause water to build up under the oil cap? I've checked the dipstick for oil and everything looks good, but there is condensation under the cap every time I check. Also, I'm loosing oil at an alarming rate (1 qt about every 200 mi) My friend told me to check the TB and sure enough, there is the oil. He mentioned something about "blow by", but couldn't really explain it. I do plan on taking my car back to the shop on Mon, but until then, can anyone offer ideas or explainations?
10-31-2004, 11:49 AM
#2
1. Oil under the cap.
- very cold weather and never warming the car up
- head gasket leak letting coolant into the oil
2. Losing oil, especially through the pcv.
- worn rings creating excessive blow-by (combustion pressure getting past the rings and building up pressure in the crankcase)
- port job cut into the rocker bolt holes (intake ports), need to put sealer in the rocker bolts that are over the intake ports (sucks oil down around them otherwise)
- ls1 pcv system vs. ls6 pcv system
- very cold weather and never warming the car up
- head gasket leak letting coolant into the oil
2. Losing oil, especially through the pcv.
- worn rings creating excessive blow-by (combustion pressure getting past the rings and building up pressure in the crankcase)
- port job cut into the rocker bolt holes (intake ports), need to put sealer in the rocker bolts that are over the intake ports (sucks oil down around them otherwise)
- ls1 pcv system vs. ls6 pcv system