| |
Click on image for the lowdown. 
====
| | |
7 members (68ironhead, Bill Hanlon, Joe H, Chris's 46 / 515, Pre '68 Dave, pauld, 1 invisible),
52
guests, and
2
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,185 Posts1,057,279 Members48,467 | | 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: Sep 2007 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2007 Posts: 59 | I need some help with this, its a 54 235 running all original except for 12 volt upgrade. It runs good for awhile and then it will just shut off, sometimes it will back fire. If i let it sit for a few minutes it will start and run for a little bit longer. It's idling good. I've changed the coil (the old one had liquid in it, sounded like a coke can when I shook it). The spark plug wires, new fuel filter. New points and condenser. It's getting plenty of fuel. Any suggests would be greatly apperciated. I'm stumped on this one. Thanks | | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | ryan790,
This could be either electric (ignition) or fuel and it sure sounds like fuel to me. If the carburetor can't maintain fuel at the proper level, it will just slowly kill the engine. Usually an ignition problem is instantaneous, just like you shut the key off. Because it backfires, it reinforces the theory of a starved carburetor.
If you can get it to do it's thing, then before it has a chance to recover, dump a little fuel into the air horn and see if it roars to life. Watch out for back fires and barbecues.
Old fuel tanks and old rubber lines can cause problems like this. Do a little more sleuthing and see what develops. Does this sound plausible?
Stuart | | | | | Joined: Dec 2006 Posts: 1,464 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,464 | Is the coil wired correctly. I've seen coils get hot and quit if they're wired backward. Also, are you running a 12V coil with a ballast resistor, or a 12V coil with internal resistor? | | |
| |
| |