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Backfiring

Posted By Jim Yergin 6 Years Ago
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Backfiring

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Jim Yergin
Posted 6 Years Ago
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Last Active: 3 Years Ago
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I am having a backfiring problem with the 312 engine in my '56 Thunderbird. It occurs when accelerating under load between 1500-2000 rpm. Engine has been rebuilt, carb has been rebuilt, replaced the ignition condenser, rechecked point gap and timing, new spark plug wires and made sure they are properly seated. Still have the backfire. Any suggestions what I should be checking?
Jim Yergin

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Forum Post Backfiring By Jim Yergin ( 6 Years Ago )
Forum Post Jim, if your car backfires through the carb then the air/fuel mixture... By Pete 55Tbird ( 6 Years Ago )
Forum Post Pete, The backfire is in the exhaust, not the carb. Thanks. Jim Yergin... By Jim Yergin ( 6 Years Ago )
Forum Post Jim, The "exhaust" kind of "backfire" is usually somehow related to... By bergmanj ( 6 Years Ago )
Forum Post Above Forum member suggestions are all GooD! I recommend that you... By NoShortcuts ( 6 Years Ago )
Forum Post Check both ends of the ignition wire going from the coil to the... By Florida_Phil ( 6 Years Ago )
Forum Post Thanks for all the suggestions. I cannot see any problems in the... By Jim Yergin ( 6 Years Ago )
Forum Post Jim; Some stock 56 Intake Manifolds have the firing order cast into... By Rono ( 6 Years Ago )
Forum Post [quote][b]Rono (5/23/2019)[/b][hr] Jim; Some stock 56 Intake... By oldcarmark ( 6 Years Ago )
Forum Post check your valve adjustment&valve train By emtdude56 ( 6 Years Ago )
Forum Post If you have checked all the ignition and carburetor isn’t to lean pull... By Andy ( 6 Years Ago )
Forum Post Not having much luck. I have replaced all of the spark plugs, the... By Jim Yergin ( 6 Years Ago )
Forum Post Jim, Measure each spark plug wire resistance from end to end... By bergmanj ( 6 Years Ago )
Forum Post I drove around 500 miles this past weekend. My truck was backfiring... By pintoplumber ( 6 Years Ago )
Forum Post Jim, I just recalled that there was a technical service bulletin on... By bergmanj ( 6 Years Ago )
Forum Post Thanks JLB. That's what I meant about the routing of the spark plug... By Jim Yergin ( 6 Years Ago )
Forum Post Found this: By Jim Yergin ( 6 Years Ago )
Forum Post Jim. Earlier in this thread you wrote: 'I have a T5... By NoShortcuts ( 6 Years Ago )
Forum Post Jim, THAT's the one [the TSB I was thinking about]!!! Mentioning the... By bergmanj ( 6 Years Ago )
Forum Post bad plugs did it on my 56.in that case someone had gapped the plugs... By darrell ( 6 Years Ago )
Forum Post I'm glad to hear about the induction misfiring bulletin. I never would... By Gene Purser ( 6 Years Ago )
Forum Post JLB, can’t thank you enough for the tip. I repositioned the spark plug... By Jim Yergin ( 6 Years Ago )
Forum Post Jim, if crossfiring was happening between 6 and 8, it could also... By Hoosier Hurricane ( 6 Years Ago )
Forum Post Jim, a faulty spark plug could occur with any brand name. Mine... By NoShortcuts ( 6 Years Ago )
Forum Post You need to know the manufacturers specification for the resistance of... By charliemccraney ( 6 Years Ago )
Forum Post Have you checked the timing with a light to see where it is set at? By Sandbird ( 6 Years Ago )
Forum Post Charlie, In my experience over many decades, resistance wires are not... By bergmanj ( 6 Years Ago )
Forum Post Sure, don't take it for granted but the manufacturer's specification... By charliemccraney ( 6 Years Ago )
Forum Post Charlie, Having the "when new" info. is great; I should, but forget!... By bergmanj ( 6 Years Ago )
Forum Post Good news/Bad news. The good news is that I have solved my backfiring... By Jim Yergin ( 6 Years Ago )
Forum Post Jim, Good for you! We've ALL done many "stupid" things (LOL - on ME).... By bergmanj ( 6 Years Ago )
Forum Post Glad you found your problem but you are not an idiot. Many of us have... By MoonShadow ( 6 Years Ago )


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