Carb- what is this screw for? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SeanPaintsFlames · 09-03-2009, 04:20 PM

250 inline six- I rebuilt the carburetor a few months ago, it runs kinda junky, so I went to take the carb off and mess with it, but noticed that this screw was loose. So, I went to tighten it up, but it kept going and going like it's an adjustment of some sort. Accelerator pump? The truck has really crummy off-idle response, and I figured it was flooding, but the floats are right where they're supposed to be. Whereabouts should this screw be adjusted?

09-03-2009, 04:20 PM	#1
SeanPaintsFlames Registered User Join Date: Feb 2008 Location: Buford, Ga. Posts: 339	Carb- what is this screw for? 250 inline six- I rebuilt the carburetor a few months ago, it runs kinda junky, so I went to take the carb off and mess with it, but noticed that this screw was loose. So, I went to tighten it up, but it kept going and going like it's an adjustment of some sort. Accelerator pump? The truck has really crummy off-idle response, and I figured it was flooding, but the floats are right where they're supposed to be. Whereabouts should this screw be adjusted? __________________ My 68 cougar restomod build:HERE

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