Jeep Enthusiast Forums banner

cj 4.2 runs on 3 cylinders?

1K views 10 replies 5 participants last post by  gmakra 
#1 ·
My father in law had me post a question for the cj guys.

4.2 with weber carb. Jeep starts but runs on 3 cylinders. There is spark on the 3 wires. Intake is clear. Compression was high,140 in each of the 3 cylinders. Were talking the back 3. Anyone else have this issue? I can answer questions

68 cj5
Rebuilt 4.2
New weber carb
 
#6 ·
I don't think a dual plane manifold would make a difference on why the back 3 cylinders are lacking fuel. If spark is there and the timing order is correct, look towards the carb and how it's set up. Are the plugs even wet?
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top