I just finished doing the heads on a 2.5 x-type. I am little disappointed because I cant get it to start. there is spark, 5 cylinders puts about 120psi which is really low however 1 cylinder does 180psi. I think timing is right or last cylinder wouldnt press 180psi. heads are properly torqued in 6 stages as per JTIS. and no start. Heads were tested and shaved. I dont know what else to look at. any ideas?

 

Did you time the engine/cams?
Do you have fuel pressure?

 

yeah, I get plenty of fuel pressure to the cylinders. matterfact, I flooded them already. so I had to remove the intake and blow air in the cylinders to get rid of the gas. As far as I know when cylinders are flooded with gas, cylinder drops the compression because gas wipes out all the oil that seals the cylinder walls. When engine was flooded my compression dropped to 90psi 5 cylinders, 150 last cylinder. so I poured a little bit of oil in each cylinder and compression jumped back up to 130psi 5 pistons and last piston 180psi. This procedure eliminates couple of suspected faults, like bad valve or piston rings. now I am getting ready to remove the timing cover again and inspect the timing. It might be off a tooth maybe. While I am at it, I am thinking of removing the heads one more time and install new gaskets and torque it again.
JTIS is really not explaining the timing enough so I am really thinking timing is not adjusted right.

 

Ya, it sounds like your timing is way off.....

Pull the timing cover and double check your timing...I'm betting your 180 out....
Follow the timing procedure to the letter, it is very critical...not only because of you dumping raw fuel into the cylinders, but i think the engine is a zero tolerance engine meaning there is zero tolerance between the valves and heads.....I hope i'm wrong.....