Mechanics

MY 400 PONCHO ENGINE IS CRANKING BUT WON'T START

1979 Pontiac Trans Am

This is what I have tried/checked. First off I built the engine myself. I am just stumped!
Compression is great! Spark is great! Plugs are great! Fuel is great! Battery is Great! Starter is great! Turns over great but won't start! What am I missing. Never came across this problem in the 12 years since I built it. The engine only has about 5,000 miles on it.
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Tyrfryr
September 4, 2012.



Check to see if you have compression and then if it's jumped time. The timing chain may have slipped.

Hmac300
Sep 4, 2012.
It has timing gears. All is fine there too.

Tiny
Tyrfryr
Sep 4, 2012.
Then if everything is great it should run. Check your compression and then go to the site under tune up on how to check your ignition system. Something has to bewrong if it doesn't start. How much fuel is coming to carb you shold have ahalf a pint or so with about 3 or 4 cranks. Does it have good pressure?

Hmac300
Sep 4, 2012.