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Posted by matt98eclipse, Nov 30, 2010
Cylinder Head & Short Block - 4G63 cams, valvetrain, pistons, rods, stroker kits, 6-bolt swaps, hybrids, etc. Read this Forum's Strict Guidelines.
What do you guys think my next step would be to do to pinpoint my problem?
Assuming the compression test was done right (WOT and the engine up to temp), a leak down test is your next step.
Did you do a dry and wet test?
How to do Cylinder Leak Down Testing- Car Craft Magazine
I havent done a leak down test yet cause i dont have one.
I did a dry test first then on cylinder 1 i went ahead and added a cap full of 10w40 oil and compression only went up to around 150..
Car is smokeing pretty bad.. one thing i did noticed is i looked at the top of all 4 cylinders threw spark plug holse and noticed they looked a little wet but didnt smell or look like oil at all. Also i know the car used to run really rich cause previous owner forgot to plug in front o2 sensor and lots of boost leaks!!
Autozone, or probably other parts stores.
It's probably either rings or valve seals, but your story leads more towards pistons rings.
Another thing to check when compression is low on all cylinders (although I doubt it in this case), is that the timing marks all line up. Too much E/I overlap will cause low readings all the way around.
very good point ill have to check this as well but this wouldnt cause it to be smoking a bit would it??
The motor has a pretty bad lifter tick is sounds like.
Have you solved this problem?