Click on image for the lowdown. 
====
| | | Forums66 Topics128,080 Posts1,056,291 Members48,441 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: May 2004 Posts: 150 Wrench Fetcher | | Wrench Fetcher Joined: May 2004 Posts: 150 | OK, here's the deal...I have this problem every 8-9 months or so with my Rochester carb (a "C" is stamped next to it, GM stamped to the side of it; I only hear about Rochester B's...)--I'll be riding along, everything running fine, and the engine will spit, sputter and stop. I have to take off the carb, blow out all of the holes, jets, et al., with compressed air, then all is fine.
I replaced the gas tank a couple of months back, thinking there was crud in the old one, installed a filter just outside of the tank, then another just before the carb, but the same thing happened today.
It's to the point where I'm not confident enough to drive it too often or far, lest I have to get towed back or dismantle the carb, then take a can of compressed air for cleaning computer keyboards to the openings and apertures, then re-install (a pain in decent clothing and/or on a hot day).
My question: does anybody else have this problem with such frequency? I have filters on the gas line, I don't use any teflon tape (or the like) that might flake off and cause a carb blockage. Are Rochester's known to have this problem? I can't believe a carb (especially when these trucks were originally used on farms) could be that sensitive; it's ridiculous. I know nothing significant in size is getting into the carb and clogging up the works. I'm at a loss.
Any thoughts, suggestions? Thanks. | | | | | Joined: May 2004 Posts: 150 Wrench Fetcher | | Wrench Fetcher Joined: May 2004 Posts: 150 | ...oh, and it's a '50 3100. | | | | | Joined: Jul 2005 Posts: 77 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 77 | My 52 did the same thing years ago when I got it. Thinking it was the carb, I had it rebuilt. Did the same thing. Had it rebuilt again: and again the same thing. Figured the carb was worn out so I bought a reman. one at the parts store. Did the same thing. Took it to an old mechanic that new about these vintage trucks. Found out that the fuel pump was bad. Replaced the fuel pump and the problem was solved. I don't know if this is what is wrong with yours but you may give it a try.
John Kinser
| | | | | Joined: May 2004 Posts: 150 Wrench Fetcher | | Wrench Fetcher Joined: May 2004 Posts: 150 | ...but when I blow out the carb with compressed air, everything's fine. That wouldn't fix the problem if it was the fuel pump, which I replaced about 2 years ago. | | | | | Joined: Jan 2005 Posts: 1,602 Shop Shark | | Shop Shark Joined: Jan 2005 Posts: 1,602 | Mine just leaks every where but it runs fine.
| | | | | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | Mine just leaks every where but it runs fine.  Aint that the truth! | | | | | Joined: May 2004 Posts: 150 Wrench Fetcher | | Wrench Fetcher Joined: May 2004 Posts: 150 | It was a bad rotor in distributor | | | | | Joined: Sep 2001 Posts: 581 Shop Shark | | Shop Shark Joined: Sep 2001 Posts: 581 | How did you figure THAT out?!  -Michael | | |
|
|
