Check your float and make sure it does not have a leak where some gas may
have gotten in to it. Also check the needle valve. The other odd ball
think to check is your vacuum to the advance.
Best wishes
woods
53 5 window
-----Original Message-----
From: Allen Jones <jonesal@u.washington.edu>
To: Old Truck List <oletrucks@autox.team.net>
Date: Monday, July 10, 2000 10:46 AM
Subject: [oletrucks] Surging Engine
>I'd like opinions on what might be causing my engine to surge. It's like
>the gas pedal is being slightly pumped from off-idle to about 1,500 rpms
>(not huge surges, but enough to make it look like the driver is having
>convulsions - it does not surge at idle and only when the engine it at
>normal operating temp). For some reason, it just started doing it last
>weekend (over 2,000 miles on the rebuild). It's an inline with dual
>Rochester's on it. I have a feeling it's a float problem in a carb (or
>both), but wanted to see if anyone has experienced this before. I don't
>think it's fuel starvation (all new stuff from tank to carb with a newly
>replaced fuel filter, and I checked the flow by disconnecting the line at
>the front carb and starting the engine). Any suggestions before I perform
>an autopsy on the carbs?
>
>Thanks for the help.
>
>Allen in Seattle
>'50 3100
>Inliner No. 2235
>
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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