| |
Click on image for the lowdown. 
====
|
| | Forums66 Topics128,051 Posts1,055,729 Members48,426 | | 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: Oct 2016 Posts: 37 'Bolter | | 'Bolter Joined: Oct 2016 Posts: 37 | Hi, I recently purchased a 1953 Chevrolet 3100 pickup with a 216 engine. It backfires when moving, but does not when sitting still when I accelerate. I changed the plugs and put points, condenser & distributor cap in it. Any suggestions on what the problem might be? Thank you. | | | | | Joined: Sep 2010 Posts: 2,307 'Bolter | | 'Bolter Joined: Sep 2010 Posts: 2,307 | Did it do this before the parts were changed .i changed points years ago when the points new to me came in two pieces and I thought the extra piece was for a different application ,well it was the spring to make the the points spring back without the extra piece it backfired on acceleration but not idling . | | | | | Joined: Oct 2021 Posts: 6,756 'Bolter | | 'Bolter Joined: Oct 2021 Posts: 6,756 | Did you keep the old parts? Put the old condenser back in and see what happens. If no change, put the points back in, and so on. New condensers are mostly all made in China. They are absolute junk sometimes right out of the box. Contact Jon G on this site. He makes condensers with parts from Germany that will last 200,000 hrs. I have them in every vehicle I own. I have another vehicle that was backfiring, missing, etc. Parts were all new. I thought the timing chain had jumped a tooth or something. Nope. new condenser failed in under 1000 miles. Same with another vehicle I own recently. Installed one of Jon's condensers and the improvement was immediate. https://www.stovebolt.com/ubbthread...west-condenser-update-8-2024#Post1563763
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
| | | | | Joined: Oct 2021 Posts: 6,756 'Bolter | | 'Bolter Joined: Oct 2021 Posts: 6,756 | Does the vacuum advance work? Work the throttle manually and watch the dizzy. It should rotate as rpm increases.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
| | | | | Joined: Mar 2010 Posts: 10,272 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,272 | Your mechanical advance weights may be gummed up or a return spring has broken.
Even if this isn't what is causing your problem, if the distributor hasn't been disassembled in its lifetime, it wouldn't be a bad idea to take the distributor apart and clean it up.
Last edited by 52Carl; 12/10/2024 2:10 AM.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Oct 2016 Posts: 37 'Bolter | | 'Bolter Joined: Oct 2016 Posts: 37 | I'm a little late, but thank you for your advice. I finally got around to changing the points and condenser. I did what you suggested and it was the condenser. What a relief! Thank you again. | | | | | Joined: Oct 2021 Posts: 6,756 'Bolter | | 'Bolter Joined: Oct 2021 Posts: 6,756 | Did you replace it with one of Jon G's condensers? If so, you'll never have a problem with it again.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
| | |
|
|
| |
