1G No start problem

[novous]

So I rebuilt a 4g63 6-bolt N/A engine out of a 91 Eclipse and swapped it into my 1990 Eagle Talon. Everything is in, but I cannot get it to start for the life of me. Key information here is that it will not start even with starting fluid. It will puff very sporadically, but never really fire to the point that it is turning on it's own force.

I've got spark on all four plugs. I've checked my sparkplug wire connections a dozen times (and they're new wires). My CAS will fire at will, although I don't know the exact timing it needs to be on. I tried fiddling with it while starting, but to no avail (including swapping it 180 degrees). I know I have fuel and I can hear the injectors moving (and even tried jumping the fuel check line anyway). I tried swapping both my two-wire sensors on the thermostat housing for ones on my old engine. The single-wire one is missing a connector, but still wired on. I checked to make sure the cams weren't off by 180 degrees--they're fine.

I pulled my spark plugs out, they're wet with starting fluid but they show that there has been no significant firing in the cylinders. They're still brand new NGKs that I gapped to .0044.

My only ideas right now are: compression test, fuel pressure check, and directly testing the fuel injectors. But that'll be tomorrow, I'm exhausted today.

Any ideas? This is blowing my mind.

Thanks in advance,
--Chris Katko

[Append]

Well, I did a compression check. 60, 60, 60, 120 psi. All of that work... all of that money... and it's over because a machine shop didn't properly rebuild my head. This is a very, very bad day.

 

[1twistdtalon]

Put a cap full of oil in each cylinder then do a compression test, That will tell you if its the head or rings.

 

[haswesley]

If your compression increases dramatically, its your piston rings, not the head/valves.

 

[dented_coffee]

take a look at your ecu. did you forget to plug in anything. is everything plugged into its correct location. double check everything to make shure. test you CAS it might be bad. i hope you get her back up and running on the road where it belongs. i hate to see or hear about a hospitalized dsm.

 

[darkstar5456]

it sounds like the heads or the piston rings.but if the shop was the error they should be realibale for a replacent or a refund man get your money back then.

 

[steve]

Did the shop install the lash adjusters and cams? Perhaps someone forgot to drain them before installing them and they are holding the valves open.

Who installed the timing belt?

 

[siccboostsi]

if i were you i would go to the shop and let them know what is going on it sounds like somthing on there part. did you do the timing?

 

[90moneypit]

This is a very important question: Are you using ANY of the electrical components from the 91 in your 90? Specifically the coils that are located inside the curve of the intake manifold? You may or may not know but there are a LOT of parts on a 1990 that ONLY work on a 90 and can't be replaced with a part for a 91+.
I ask because you stated that the plugs aren't showing any significant signs of ignition. Another simple thing is to make sure you don't have a couple ignition wires mixed up as well, it happens sometimes.