I have a 1977 nova 250 engine no gas to the pistons

Asked by Mar 05, 2016 at 04:03 AM about the 1977 Chevrolet Nova Concours Coupe

Question type: Maintenance & Repair

I replace the distributer ,I have spark out off the coil and i get spark from the
distributor the carb squirts gas in but the spark plugs are dry ,I remove the
carb and the was a lot off gas in manifold

11 Answers

37,935

Check the compression on all the cylinders. Sounds like there is no draw, vacuum to draw the fuel into the cylinders. If the compression is good, then look at the intake manifold gasket.

37,935

Or there may be a open vacuum line.

16,790

Also check for a broken timing chain.

37,935

They are timing gears there firebird.

16,790

Thanks for the correction Rowefast.

I check the compression and they are 1/140, 2/140,3/140,4/137,5/140,6/130, I check the timming is good I replaced the exhaust gasket too the car was running before i replace the gasket i replaced all the vacuum lines can some one help me thanks

37,935

I'm thinking you may have a fuel issue. The gas that you see in the intake manifold, do you feel that you pumped the throttle enough to make that accumulation of gas? Those are good compression readings. I'm thinking either the fuel pump took a dump, pressure should be like 4 to 6 lbs. or the carb. is flooding.

37,935

You know, there is one other possibility, you replaced the exhaust manifold gasket, this would have sealed up the exhaust, is there a catalytic converter on there? If so, this could cause it not to draw if it is plugged.

1 out of 1 people think this is helpful.
37,935

If there is a cat. on there disconnect the exhaust before it and try to start it.

1 out of 1 people think this is helpful.
16,790

Maybe one tooth off when you replaced the distributor. The distributor has to be just right if just one tooth off will not start.

1 out of 1 people think this is helpful.

thank all i will try let you know how it turn out

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