Hi guys,
I am looking for expert advice from those of you who are familiar with the Carter BBD 2 barrel carburetors found on many of our beloved C bodies.
Previously In this thread thread -->>
Anyone else have minor hesitation/jerking at part throttle??
I was troubleshooting an at cruising surging issue on my 70 Newport that we believed to be an ignition issue but after I decided to swap carbs to a remanufactured unit I bought, the surging vanished! The car runs well now at all speeds and throttle with the reman BBD but the only quirk it has now is that if you rev the motor in park/nuetral anywhere say past 1200 rpm the revs take an extra second or 2 to settle down to base idle. I have the mixture screws set so it idles happy. This extra second or 2 of rev doesnt necessarily cause any driveability issues BUT i would like to get to the bottom of it because it never did this before and I can confidently say it's something with this new carb.
My thoughts so far...
Could the accelerator pump need breaking in or possibly set too high? (It is currently set for the middle hole on the linkage).
Could I have an internal fuel or air bleed somewhere ? Maybe faulty remanufacturing?
Vacuum leak somewhere? (the carb base gasket is tight)
I am looking for expert advice from those of you who are familiar with the Carter BBD 2 barrel carburetors found on many of our beloved C bodies.
Previously In this thread thread -->>
Anyone else have minor hesitation/jerking at part throttle??
I was troubleshooting an at cruising surging issue on my 70 Newport that we believed to be an ignition issue but after I decided to swap carbs to a remanufactured unit I bought, the surging vanished! The car runs well now at all speeds and throttle with the reman BBD but the only quirk it has now is that if you rev the motor in park/nuetral anywhere say past 1200 rpm the revs take an extra second or 2 to settle down to base idle. I have the mixture screws set so it idles happy. This extra second or 2 of rev doesnt necessarily cause any driveability issues BUT i would like to get to the bottom of it because it never did this before and I can confidently say it's something with this new carb.
My thoughts so far...
Could the accelerator pump need breaking in or possibly set too high? (It is currently set for the middle hole on the linkage).
Could I have an internal fuel or air bleed somewhere ? Maybe faulty remanufacturing?
Vacuum leak somewhere? (the carb base gasket is tight)
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