Carb help please ! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

teamharvey · 03-27-2005, 01:46 AM

I know nnothing about carbs so here is the story. All was running great and after sitting for 6 weeks I have problems. It was a bear to start and when it finially did I had to stay on the pedal to keep it from dying. It was running very rough when it finially would idle, but when put into gear it would die instantly. I took it out on the highway and ran it at 60+ mph for about 20 mins. It ran great but when I stop at a light it still dies in gear. I have played with the idle, cleaned up what I could get to with carb cleaner but no help. I am running an Edelbrock 1406. I can`t get the idle ( in park ) to stay constant. When I adjust it to a desired point and then get back in the cab to see how it does in gear, as soon as I pump the gas a few times the idle bogs down and shuts off ( still in park ). Any ideas ?
Also, for a point of reference, where is a good point to start at with the mixture screws ?

thanks
Bret

tom hand · 03-27-2005, 08:10 AM

Sounds like one of your needle and seats went bad during the 6 weeks sitting up

03-27-2005, 01:46 AM	#1
teamharvey Registered User Join Date: Jul 2004 Location: Turlock, Ca Posts: 579	Carb help please ! I know nnothing about carbs so here is the story. All was running great and after sitting for 6 weeks I have problems. It was a bear to start and when it finially did I had to stay on the pedal to keep it from dying. It was running very rough when it finially would idle, but when put into gear it would die instantly. I took it out on the highway and ran it at 60+ mph for about 20 mins. It ran great but when I stop at a light it still dies in gear. I have played with the idle, cleaned up what I could get to with carb cleaner but no help. I am running an Edelbrock 1406. I can`t get the idle ( in park ) to stay constant. When I adjust it to a desired point and then get back in the cab to see how it does in gear, as soon as I pump the gas a few times the idle bogs down and shuts off ( still in park ). Any ideas ? Also, for a point of reference, where is a good point to start at with the mixture screws ? thanks Bret __________________ 71 Custom 20 Deluxe..soon to be SWB 1/2 ton 1 incredible wife 2 great kids

03-27-2005, 08:10 AM	#2
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	Sounds like one of your needle and seats went bad during the 6 weeks sitting up __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS



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