Join Date: Sep 1999
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Small Carb changes make big problems
So, I rebuilt the AFB carb that is on my AMC 360. Problem was that during reassembly I could remember which jet belonged in which hole. The carb was so junked up when I began that the difference in the jets wasn't apparent until after cleaning. SO I took my best guess and reassembled the carb. Since the card was put back on the engine, it was idling to fast. It's been idling high enough that the idle speed screw on throttle linkage doesn't even come into play. So I opened the carb and looked at the jets. The jets that the metering rods were going through were so large that it didn't appear that they were functioing propery. The other jets were smaller so I swapped around the jets. Big Mistake. I reset the timing and adjusted the air fuel mixture screws. The engine now runs like crap when going down the road. It's bad enough that what was a smooth running engine now runs rough. I've gone back and adjusted the pump lever to different holes trying to find a better setting. Looks like my next step will be to reverse my changes.