Timing? Issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MrSteve · 05-24-2009, 10:47 PM

Hey everyone! I have an 82 GMC Sierra 2500 with a rebuilt 350. I have had a driveability issue that goes like this: I can set the timing according to spec with the advance plugged. The engine idles perfectly but when I put it in drive I move ok as long as I gently touch the throttle but If I try to drive normally it boggs and tries to die on me. I have checked all the vacuum lines and they are routed correctly with no leaks. The vacuum advance works and does move the plate in the distributor. Is it possible that the distributor is set/installed wrong? If I wanted to verify the TDC and position of the distributor and #1 how would you guide me and what steps should I proceed in? Assuming you don't have other ideas as to what could be the problem.

Steve

05-24-2009, 10:47 PM	#1
MrSteve Registered User Join Date: Feb 2009 Location: Galt, California Posts: 26	Timing? Issues Hey everyone! I have an 82 GMC Sierra 2500 with a rebuilt 350. I have had a driveability issue that goes like this: I can set the timing according to spec with the advance plugged. The engine idles perfectly but when I put it in drive I move ok as long as I gently touch the throttle but If I try to drive normally it boggs and tries to die on me. I have checked all the vacuum lines and they are routed correctly with no leaks. The vacuum advance works and does move the plate in the distributor. Is it possible that the distributor is set/installed wrong? If I wanted to verify the TDC and position of the distributor and #1 how would you guide me and what steps should I proceed in? Assuming you don't have other ideas as to what could be the problem. Steve



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