b4black
Well-Known Member
- Joined
- May 24, 2001
This spring, I installed a new engine in my '82 GN. Great news is it starts, runs, etc. Bad news is it has a misfire. The engine was a used short block, to which ported heads and a roller cam were installed.
At idle, it feels fine. In gear, it stumbles and misses. Feels pretty consistent, like a couple of cylinders aren't firing. Distributor, cap/rotor, wires and plugs are new. I've quadruple checked the wire routing and it's correct. (1-6-5-4-3-2). I also put a spark tester in line and each cylinder is firing (at idle and in gear).
I did a compression test. All cylinders were between 130-136 psi.
Suggestions on next step?
At idle, it feels fine. In gear, it stumbles and misses. Feels pretty consistent, like a couple of cylinders aren't firing. Distributor, cap/rotor, wires and plugs are new. I've quadruple checked the wire routing and it's correct. (1-6-5-4-3-2). I also put a spark tester in line and each cylinder is firing (at idle and in gear).
I did a compression test. All cylinders were between 130-136 psi.
Suggestions on next step?