Weird problem with SR.....

[KrazyZenki]

I just got done putting my SR20 back together. I took it apart because it was spitting oil out the PCV tube under boost and had low compression in the front 2 cylinders. Sounded like rings but took off the oil pan and saw the oil pick up broke off so that explains the pressure in the crankcase and the valves werent seating fully because it had a lot of carbon buildup. So I did a valve job, installed a re-inforced oil pickup and put it back together. I start it up and its pushing straight exhaust out the PCV tube. The compression is still low in the front 2 cylinders. The compression was 100, 110, 170, 170 1-4 respectively. Im thinking rings but what do you think?

[ryguy]

Coincidence, i did a compression test today (on my KA though, but it probably still applies) and in the FSM it says "If compression in any two adjacent cylinders is low and if adding oil does not help compression, there is leakage past the gasket surface. If so, replace the cylinder head gasket."

[KrazyZenki]

I just did another compression test with putting oil in the cylinder and it raised the compression 10psi in cylinders 1 and 2(1 went from 100 to 110, 2 went from 110 to 120). Now from what Ive read when the compression raises but not all the way back to normal it means rings and valves but I just did a valve job on it and the back 2 cylinders are still at 170 so its not valve timing. And when the cars running it smokes from the pcv tube and it smells like straight fuel. Uh, Im totally lost.

[fridaytech]

if you possibly install hydraulic lifter tappet in the wrong position, valve will not fully close. check your tappet pattern. all cycliders should each have one flat tappet and one hat tappet per bank (intake,exhaust).