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73-87 Chevy _ GMC Trucks => Fuel Systems and Drivability => Topic started by: unbludictable on December 16, 2008, 04:53:03 pm

Title: My Edelbrock Carb!
Post by: unbludictable on December 16, 2008, 04:53:03 pm

I have a used Edelbrock Preformer on my '76 GMC. I have a rebuilt 350 engine and this edelbrock carb is not keep it's prime!

Title: Re: My Edelbrock Carb!
Post by: VileZambonie on December 16, 2008, 06:34:06 pm

 ???

Title: Re: My Edelbrock Carb!
Post by: grinder1989 on December 17, 2008, 01:58:17 am

I'm having a problem with mine as well.  It idles fine but if I stomp on it and a dead stop, it just bogs and the engine really doesn't do anything until I let off the gas a bit then it takes off.  I'm thinking it's the jets but I'm not sure, I've never had to tune a carb before :(.

Title: Re: My Edelbrock Carb!
Post by: VileZambonie on December 17, 2008, 05:22:05 am

Quote from: grinder1989 on December 17, 2008, 01:58:17 am

I'm having a problem with mine as well.  It idles fine but if I stomp on it and a dead stop, it just bogs and the engine really doesn't do anything until I let off the gas a bit then it takes off.  I'm thinking it's the jets but I'm not sure, I've never had to tune a carb before :(.

Check the accelerator pump and stroke. It's adjustable on yours. Try playing with the settings and make sure you have no kinked fuel lines first.

Title: Re: My Edelbrock Carb!
Post by: grinder1989 on December 17, 2008, 10:06:50 am

Quote from: VileZambonie on December 17, 2008, 05:22:05 am

Check the accelerator pump and stroke. It's adjustable on yours. Try playing with the settings and make sure you have no kinked fuel lines first.

New accelerator pump.  I think I have a kink in the metal fuel line, though it doesn't look that bad.  I'll have to get that checked out.

Title: Re: My Edelbrock Carb!
Post by: unbludictable on December 17, 2008, 04:25:12 pm

How can I tell if it's the fuel pump or the accelerator pump? It turns over and runs fine when it finally runs, but after it sets over night, I have to pour gas in the carb for it to run! I tried patting my accelerator before starting it, but that doesn't help!

Title: Re: My Edelbrock Carb!
Post by: 78 Chevyrado on December 17, 2008, 05:14:31 pm

That sounds like mine when the fuel pump was bad.  The diaphram started leaking and it would let the gas run back into the tank and suck the float bowl dry.

Title: Re: My Edelbrock Carb!
Post by: grinder1989 on December 18, 2008, 10:41:49 pm

Quote from: VileZambonie on December 17, 2008, 05:22:05 am

Check the accelerator pump and stroke. It's adjustable on yours. Try playing with the settings and make sure you have no kinked fuel lines first.

Had a kink in the gas line.  I installed a new fuel pump, rubber lines and a fuel filter.  Seems to run 10 times better.  Thanks for the tip.

Title: Re: My Edelbrock Carb!
Post by: grinder1989 on December 19, 2008, 04:12:06 am

A little update.  After I fixed my little problem, I managed to spin one of my tires with 500 pounds of tube sand and snow tires on the back from a dead stop without brake torquing.  It made me happy lol.  ;D

Title: Re: My Edelbrock Carb!
Post by: VileZambonie on December 19, 2008, 10:14:02 am

Glad to hear