0,0,0,0 compression!!!

[Jerry Hong]

Hey guys,

I did a ARP and metal head gasket install, now i can't get compression on my engine!

This is a 1995 GST. I know its must be my timing! but i've done it like 10 times, and still I can't get good  compression. I've lined them all up.... and tried a compression test, but NOTHING!

Ive done this before without any problems! but now what can this be???
Did I miss something?

thanks,
Jerry

[Mike Meron]

when you timed your engine it was mistimed the first time.. when you cranked the engine over you bent a minimum of 8 valves with the starter motor now you have no compression.. sorry for the bad news but you %99 need a head job.

[Marty van den Bosch]

Oh GOD no!

But that sounds like it.

[Mike Schmid]

Always always always hand crank the motor before power cranking it.... And don't use any muscle when you do it.  Do it with the plugs out, it should turn like nothin' with smooth minimal resistance.

[Jerry Hong]

well, I played with the timing for like 10 times, now i have 165-175. But i'm back at teh same problem I had before!
While driving, I can't get the car to go past 2500rpm... even at WOT!!!
And it running REALLY RICH, all my plugs are black!
Anyone have any ideas??? this is really pissing me off, i might have to take it to the dealer.. SH!T!

PLEASE HELP!!

[JamieSibley]

running that rich and not reving past 2500, sounds like an air metering problem.  Maybe get a shop to check it out.

[Jerry Hong]

i replaced the MAF with a known working one, and still the same problem

[Robin Toor]

well, I played with the timing for like 10 times, now i have 165-175. But i'm back at teh same problem I had before!
While driving, I can't get the car to go past 2500rpm... even at WOT!!!
And it running REALLY RICH, all my plugs are black!
Anyone have any ideas??? this is really pissing me off, i might have to take it to the dealer.. SH!T!

PLEASE HELP!!

Is your fuel system stock or do you have aftermarket injectors and an AFC? I had this problem once when my AFC was reset and was dumping to much fuel into my system, causing the exact same problem as you have.

If its stock then it probably is an air metering problem...

[Jerry Hong]

i put the stock injectors in. and ahve an old 5 knob AFC, i'll take that out and see what happens, I have a walbro 255L pump.

I replaced the MAF, it didn't help. where else can there e a metering problem? I can rev the engine, but I can't drive the car! It sputters and lose all power at 2000ish RPM, and lots of black smoke is puffing out the muffler

[Marty van den Bosch]

IC pipe leak somewhere?

[Jerry Hong]

no visiable, or audio sound from the IC piping. It revs fine, but under load it goes nowhere and has no power!

I'm going to pressure test it and see what happens, I've had leak before, but ithis has to be a pretty big leak if the car doesn't want to go over 2000rpm!

[Marty van den Bosch]

I blew off my IC pipe on the weekend - right at the IC itself.

I could not go over 2000rpm

[JamieSibley]

If you hooked up a logger I think you'd find the problem right away.

[Jerry Hong]

i hooked up an OBD2 scanner, and found nothing wrong.. I've had pipes blow off on me too, but I also couldn't rev the engine! I have no problems reving the engine, even my BOV goes off!! It NOT a blown pipe problem.. that was the first thing i looked off. I've pulled and pulled on all my IC pipes and double cheacked all the clamps!

It has to be something else!

[Kevin Standeven]

something 180 degrees out of phase?