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Old 11-28-2009, 02:49 PM
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~!~!Carburator Help~!~!

I have a 1972 C20 Chevy with a 250 inline 6. I recently did a rebuild on the Carburator, just gaskets and a few springs and stuff like that. But now when I go to start my truck is starts shooting gas out of this hole in the picture or if my truck starts running it keeps shooing it out but the truck runs real ruff and smokes, and I have taken it off many times taken it back apart and I can't find any thing that I did wrong. It is a Monojet Carb Rochester.
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Old 11-28-2009, 03:13 PM
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That hole is the float bowl vent. In order for fuel to come out here, something is wrong with the needle and seat. It is either installed wrong, installed without the gasket, or the float height is set wrong or the float is shot. You'll have to take it back apart and look more closely, and remeasure the float height and float drop, the connection of the float at the needle, and look for dirt in the needle and seat.

Did you replace the needle and seat??
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Old 11-28-2009, 03:42 PM
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I just replaced the needle and when I took it out I dont even thing the float and needle were slotted together I think the needle was just sitting in the float because the needle and float wouldnt even line back up with the jet.


It is also coming out of here in the pic.
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Old 11-28-2009, 04:23 PM
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The needle is supposed to have a tiny little wire hook on it and it hangs from the crossbar on the float. Fuel coming out anywhere above the gasket at the two carb halves means the needle and seat aren't doing their job for some reason, either improper assembly or dirt in the carb.
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Old 11-29-2009, 10:02 AM
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When I took the float out the first time it didn't have a wire holding the needle, it has a slot the needle slides into.
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Old 11-29-2009, 03:18 PM
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So does that help
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