Ok my 85 gsl is still not running right. Changed the coils, bought NEW Carb, new used distributor, new plugs, new wires, replaced the pulley and lined up the dizzy, cranks all day.... fires up.... runs for about 2.5 seconds then dies and won't start back up at all. done a compression test on the newly rebuilt mazdatrix engine gettin 100 on all three points. Please if you can think of anything at all anything, oh yeah i put all new allen head bolts on the intake manifold and torqued them down good, along with a new intake gasket on the block and the bottom of the carb. PLease i beg you to help i am going nuts, i have been working on this damn thing for 2 years every weekend!..AHHHHHH

 

maybe the engine is flooded

 

while it does run for a few secs, can you verify that you have the timimg set right?

 

have you checked fuel pressure?

 

oh yeah new 9psi fuel pump......it won't run long enough for me to get around and put the timing light on it......would the timing make it do that?.....I had one 180 deg out one time and it still ran....

 

you are running a holley right? are you sure you have the fuel pressure down to ~6psi with the help of a regulator? What about the floats and mixture screws? After it dies, how long until it will start again? When it doesnt start, are you still getting spark?

have you called John at Mazdatrix for help?

 

sounds like your out of gas.
floats?
fuel flow, just discommect the line and see how much flows into a container in 30 sec, dont smoke or have any spark around when you are doing this - right!
older car maybe a block in fuel line or outlet in tank. have you looked in your tank lately

 

Sounds like a simple fuel delivery problem to me.
Exactly how long does it run? Is there adequate shot from the AP?

 

Sounds like its fuel starved or flooding. Or it has a hellacious vacuum leak. 9 psi is too high. You will need a reg like FD Racer suggested.

 

im running a holley, and i had the same problems at around 6 psi, 4.5 seems to be the magic number.

 

sounds like fuel problems to me

 

sounds like you threw a rod.

 

maybe it's the timing belt

 

how bout a bad valve hehe

 

Hey i never thought about checking the rods........lol, not really.

I don't doubt that the car is flooding but I have the regulator set at 6psi, It will crank back up after about 2 minutes of trying and run for a couple more seconds...it puffs out tons of gas smoke......I shouldn't have a vac leak cause i have NO vac lines at all. I am really stumped.....

 

I'm betting on fuel problem. I think the likely culprit is the pump overwhelming the floats causing it to flood out. Especially if it is a stock port.
Go get an adjustable holley FPR from summitt or ebay. Only $30 and easy to set with a gauge.

 

Oops, I mean summit. Anyways, if you're lazy:
http://store.summitracing.com/partde...HLY%2D12%2D803
BTW, try and find a good place to get quality fittings. The ones I got from Advanced Auto sucked. Bad.
Good luck.

 

Im betting its fuel problems

 

I'm betting it's some sort of way the cosmos has aligned the planets directly to affect your fuel delivery. hehe.

 

is it ticking? you might want to check the rocker clearances...


I don't know if anyone's mentioned it, and I'm too lazy to look for it, but have you checked your fuel filter lately?

when I got my car, it had a dent in the gas tank right under the fuel pickup, which restricted the fuel flow, and on ly let the car run for a few minutes under load, and would idle for 10 or so...