Hey all!
This is my first time using any forum for information, and after perusing several forums I still can't seem to nail down the problem.
I have a 1976 CJ360T that was running until I began a budget brat build on it. The motor is stock, brand new Mikuni VM30's, pod filters and 2-2 high flow exhaust. I have all new ignition parts from the coils to a PAMco electronic ignition. New boots, wires, the works.
My left cylinder is running cold, even after warming up, and the right cylinder is doing all the work. I can pull the boot off the plug on the left side and there is no change, but the engine dies when I pull off the right side. There are no air leaks, and the carbs have been synced. Today, and the reason I am writing on the forum, I noticed that the inside of the left exhaust pipe had a black sludge gathering on the tip, the right side does not. I'm not sure if that was un-burned fuel mixing with the carbon in the pipe or oil. The left plug is white and clean (the cylinder not working) and the left is normal, light brownish. I swapped the plugs themselves and the right cylinder still ran with the left not. The plug on the left side is firing, and was verified visually and with a tester on the wiring.
Could it be oil in the left cylinder? Could sitting for 6 months do this? Why would the plug still look brand new when the cylinder is firing, and getting fuel?
I'm trying to do this without a rebuild, but...
Thanks ahead of time!
-Trogoloff
This is my first time using any forum for information, and after perusing several forums I still can't seem to nail down the problem.
I have a 1976 CJ360T that was running until I began a budget brat build on it. The motor is stock, brand new Mikuni VM30's, pod filters and 2-2 high flow exhaust. I have all new ignition parts from the coils to a PAMco electronic ignition. New boots, wires, the works.
My left cylinder is running cold, even after warming up, and the right cylinder is doing all the work. I can pull the boot off the plug on the left side and there is no change, but the engine dies when I pull off the right side. There are no air leaks, and the carbs have been synced. Today, and the reason I am writing on the forum, I noticed that the inside of the left exhaust pipe had a black sludge gathering on the tip, the right side does not. I'm not sure if that was un-burned fuel mixing with the carbon in the pipe or oil. The left plug is white and clean (the cylinder not working) and the left is normal, light brownish. I swapped the plugs themselves and the right cylinder still ran with the left not. The plug on the left side is firing, and was verified visually and with a tester on the wiring.
Could it be oil in the left cylinder? Could sitting for 6 months do this? Why would the plug still look brand new when the cylinder is firing, and getting fuel?
I'm trying to do this without a rebuild, but...
Thanks ahead of time!
-Trogoloff