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Pontiac Forum: Bogging in heat or while waiting in traffic
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Old June 11th, 2018, 06:36 PM
KBTfilms KBTfilms is offline
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Bogging in heat or while waiting in traffic

My 64 tends to bog and sounds like it is going to stall when it is in gear at a stop after I have been driving for a while. My guess is that the car is running lean because I removed the crappy mufflers that were on the car and I haven't messed with the air/fuel ratio yet. Am I probably correct? Any thoughts?
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Old June 12th, 2018, 10:01 AM
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cammerjeff cammerjeff is offline
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It could be that, or it could be an ignition issue. Have you checked the Mechanical & Vacuum Advance systems? Just to make sure they are operating properly. If the timing is not advanced at idle (or to far advanced) you get rough idle issues as you are describing. That is the 1st place I would check.

Also does the car still have Points?
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Old June 12th, 2018, 11:57 AM
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melsg5 melsg5 is offline
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You always check ignition first as stated above, correct dwell angle, if you have points, and timing. Removing mufflers isn't going to have a noticeable effect on idle quality. If ignition checks out, adjust the idle mixture and speed screws.
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