Which is likely my no compression source....?

[MistaZ31turbo]

Ok i got a 95 240sx that had the head gasket blow on my on my way to school. So I dragged it to school then pulled out the motor and transmission together, separated the two, broke the top end down and replaced the head gasket. Threw everything back in the car (this all took me twoo week to do because I did it alone), plugged the wiring harness back up, and attempted to fire it.....motor turns like it had no compression. At this point im pissed at the whole world. So i do a leak down test and compression test and the numbers were pitiful. Cyl 1..20 psi and the rest about 10.
The leak down showed between 90 and 95 percent leak in all cylinders. So my question is this.....since i reused the head bolts could that be why I dont have compression or/and could it be the fact that maybe my piston rings collapsed? Yeah I know i should not have reused the bolts but I figured since this is a stock KA it shouldnt be an issue. So what do you guys think? Will just replacing the head bolts solve my issue?

[compactfean]

Id say the engine isn't timed properly.

[MistaZ31turbo]

That's the first thing I checked. I TDC cylinder one and the marks all lined up properly. I made sure there were six links between the can marks and intake mark pointed towards 11 o'clock and exhaust pointed towards two o'clock. Idle sprocket was around two o'clock also.

[compactfean]

6 links? That's WAY off. 14 for ka, 20 for sr. both with exhaust cam dowel pin at 12 and count backwards. Timing done.

[MistaZ31turbo]

I've read that there is suppose to be 6 links between intake and exhaust timing marks. I noticed my cams have a lil paint on them. One has green paint and the other has brown paint...what does that mean?

[compactfean]

Don't go by the painted marks, once you rotate the motor they don't end up back in the same spot. Fallow this link. http://jimwolftechnology.com/wolfpdf/CA ... KA24DE.PDF

[MistaZ31turbo]

ok i did it that way and I still have no compression. I even did another leakdown and I still have like 95% leak in all cylinders. Im thinking its my head bolts. Ive heard of people reusing them with no issues. So If I get new ones and I still have no compression..is it the rings? This is the only car I have so I really need to get an idea on how to get this thing running. Whole thing is driving me nuts.

[compactfean]

If its timed properly than it wouldn't be rings or head bolts. Reusing head bolts wouldnt give you vertually no compression (unless you blew the hg on all 4 cylinders). Reusing head bolts is just silly. You will inevitably end up replacing the head gasket again, when you could have just spent the $40 for bolts and do the job one time.
If rings were fried you would still get some compression.
When you did the leak down test, the hole point of a leak down test is to find where the cylinder is leaking air. Intake or exhaust valves, hg, or rings which you need to identify during the test.
My bet is the valves got bent (probly intake valves) when you timed the motor wrong. Redo the leak down test (not to be confused with compression test) to see where it's leaking air from.

[MistaZ31turbo]

Yeah i did the leakdown test again and again all cylinders were reading 95% leakage but air was coming out of the throttle body. Once i put the tester in cylinder 4 air came out of cylinder 3 spark plug hole which would indict head gasket issue. I was thinking "what the #$% else could it be?" then it dawned on me...maybe the cylinder head is warped. Let me backtrack a bit.....The engine im trying to get working now was originally in my car when I bought it. The head gasket was blown on that KA so avoid doing the head gasket replacement, my friend pulled his KA out from his car (it was working) and gave it to me since he was doing the SR20 swap anyway. The radiator upper hose blew off and over headed the engine. So I pulled that engine out and replaced the head gasket and thermostat on the ORIGINAL engine which is the one that i just put back in the car and having the issue. Yes I know reusing the head bolts was probably a bad idea but im broke lol. So I went back and put a straight edge on the other head and looked at it.....where was light on the other side and im talking a lot. So im thinking now its not the bolts, valves, or rings but the head itself. If thats the case then im going to be upset at myself because i should have straight edged the head before assembling the whole engine.