Carb rebuild and now some new problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mattybilt79 · 12-30-2014, 07:47 PM

Sounds like an accelerator pump issue. Last time I did a rebuild I noticed that the replacement cup as I call it didn't have a spring that went inside it like ones I had seen before. If its bogging right off idle that seems suspect to me as its not pushing fuel through the carb. Operating the throttle can make the plunger roll in the bore causing intermittent problems or if you put it in upside down. Did you see if your getting a good strong squirt of gas with the engine off when you checked the secondaries?

**Gregski** · 12-31-2014, 12:05 AM

Quote:

Originally Posted by mattybilt79

sounds like an accelerator pump issue.

+ 1

https://www.youtube.com/watch?v=5X26WEfR4Ek

starts @ 3:30 into the video

12-30-2014, 07:47 PM	#1
mattybilt79 Registered User Join Date: Nov 2014 Location: Arizona mostly Posts: 114	Re: Carb rebuild and now some new problems Sounds like an accelerator pump issue. Last time I did a rebuild I noticed that the replacement cup as I call it didn't have a spring that went inside it like ones I had seen before. If its bogging right off idle that seems suspect to me as its not pushing fuel through the carb. Operating the throttle can make the plunger roll in the bore causing intermittent problems or if you put it in upside down. Did you see if your getting a good strong squirt of gas with the engine off when you checked the secondaries? __________________ 85 3+3 with a tee-pee



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.