The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 1974 C10 Quadrajet, What Are These Vents?

geezer#99 · 05-14-2017, 06:02 PM

Good stuff Malo!!
Better than I could 'splain it!
So if you get fuel out of them it would mean the discharge port from the pump is plugged. If you're only going 15 miles just remove the pump linkage. It might stumble a bit but won't want to flood either.
There's a tiny roll pin that the arm pivots on, right by that front bolt. Tap it back with a small nail until the arm pops up. THat'll make it ineffective for your short drive.

05-14-2017, 06:02 PM	#3
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,522	Re: 1974 C10 Quadrajet, What Are These Vents? Good stuff Malo!! Better than I could 'splain it! So if you get fuel out of them it would mean the discharge port from the pump is plugged. If you're only going 15 miles just remove the pump linkage. It might stumble a bit but won't want to flood either. There's a tiny roll pin that the arm pivots on, right by that front bolt. Tap it back with a small nail until the arm pops up. THat'll make it ineffective for your short drive.