Backfiring @ LOW RPM'S - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

 
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post #1 of 4 (permalink) Old Jan 20th, 01, 04:17 PM Thread Starter
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Location: Rowlett, TX USA
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Posted the original thread last week in the General Tech section. Just bought a '69 Z11 with the original rebuilt motor with about 2,500 miles on it. The car was very seldom driven the last 2 years and has a points ignition w/coil. The car drove fine the first time I drove it and began to backfire and bogg down at low cruising rpm/speed. I had someone check the distributor cap, timing and points. He said that all seem to be in good condition and the car drove fine for about 3 miles. When I rounded a corner, the car acted like it wanted to die and for a second, I thought the motor quit turning/running but it picked itself up but began to backfire a bit. I have not replaced any plugs and the wires look new. I've never had any of my cars come to almost a complete stop when I rounded the corner. Any suggestions? Dump the points and switch to HEI?
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post #2 of 4 (permalink) Old Jan 20th, 01, 04:28 PM
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Sounds like it might be a carb problem to me, I'd look into it next after you change the plugs and wires. Float adjustment? Just throwing out ideas.......KZ

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John D. Smith
69' SS/396
www.geocities.com/kz1000ltd
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post #3 of 4 (permalink) Old Jan 20th, 01, 04:34 PM Thread Starter
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The car seems to idle just fine and on the highway, drives smoothly. It's at the lower speeds and take off that it feels to backfire. I'm changing out the plugs tomorrow. Possible that it may need a new fuel filter?
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post #4 of 4 (permalink) Old Jan 21st, 01, 01:21 AM
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No fuel filter problem or carb problem, at least it sounds like your distributor isn't set right. Do you know how to take the engine to top dead center? email me if you want help I don't frequent here alot.
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