*updated vid http://www.youtube.com/watch?v=wgmPN1iOsxs

Have had the same prob for 2 weeks now engine dies, after it fires up,does it sound like an igniton or fuel related problem?
http://www.youtube.com/watch?v=bHYDmTd64uY

engine
75 302 short block
65 289 heads
performer intake/cam
holley 4160(6919)
stock 75 duraspark ignition

thanks

 

Does the car die as soon as you let go of the key?

 

it did last week but this week if i let go of the key it will kep running for 2 seconds more then i'll die.








PS: i'm not pouring gas thorugh the choke, i just pump it then try to start it.

 

With the engine off, air cleaner removed, look down the carb and move the accelerator rod. The carb should squirt gas down the venturis - if it don't - it may be some fuel related problem - filter, pump, floats in the carb. If it does squirt, it still may be a fuel problem but that's the place to start.
Jim

 

My quick answer to your limited question is ignition,, I think.

After the car dies, remove the air cleaner, look down the bores, (past the choke),open thethrottle by hand and see if theaccelerator pumpis pumping gas into the manifold, if so, look at your ignition. If not, look at your fuel filter(s), fuel pump, etc.

Also,,, how long, and how many miles since your last engine rebuild or timing chain set?

 

yeah i checked for this...it does squirt fuel..thanks

 

thanks i'll try that....and it been about 18-20 years since the rebuild(i didnt own it)...i'm curenlty in the process of saving $ to build a new engine

 

Damnit .... you stole my thunder..... just so you know, I started my post before your post was up.....

 

Quote:
thanks i'll try that....and it been about 18-20 years since the rebuild(i didnt own it)...i'm curenlty in the process of saving $ to build a new engine
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This is way, way, way, premature to diagnose, but it might be that your engine slipped time if a "fiber" set of timing gears was used in the rebuild.

You should eliminate all of the more likely issues before proceding to check this out, except that you might want to put a timing light on and see where your timing is set. make a note if the ignition timing is way out, and how much, before adjusting the ignition timing.

The light might prove helpfull in diagnosing an ignition issue as well.

 

Looks like you have a Duraspark II electronic ignition. It has a "start" and a "run" circuit. I had the same problem on an F250 I had a while back. It turned out that the run circuit had died. I replaced the ignition module and all was well again.The modules are identified by the color of the grommet that the wires go into. You probably have a blue grommet. Make sure you have 12v to the red wire on the module with the key in the run position. If you don't, you have a wiring or ignition switch problem.