I have a Super A which has recently developed an issue where it seems like the engine starts to miss when it gets hot.
It's a 6-volt positive ground system. I changed the coil, but that didn't solve the problem. I ultimately ended up changing points, condenser, rotor, and spark plugs as well, with no change. I also adjusted the valve clearance with no change in behavior.
I didn't change the plug wires yet, as I'm doubtful that's the issue since the problem doesn't seem to happen on just one cylinder (I can't duplicate it by pulling individual plug wires), and the wires are only about a year old anyway.
The problem shows up after the engine is hot, and doesn't seem to take more than a few minutes of idling or being shut off to make it go away. But after a short cooldown, the problem comes back again after only a few minutes of running under full load. The coolant level remains full; it was changed about two years ago and I haven't had to add any since.
Can anyone help me diagnose this issue, or offer any other suggestions as to what it may be? Thanks in advance!
It's a 6-volt positive ground system. I changed the coil, but that didn't solve the problem. I ultimately ended up changing points, condenser, rotor, and spark plugs as well, with no change. I also adjusted the valve clearance with no change in behavior.
I didn't change the plug wires yet, as I'm doubtful that's the issue since the problem doesn't seem to happen on just one cylinder (I can't duplicate it by pulling individual plug wires), and the wires are only about a year old anyway.
The problem shows up after the engine is hot, and doesn't seem to take more than a few minutes of idling or being shut off to make it go away. But after a short cooldown, the problem comes back again after only a few minutes of running under full load. The coolant level remains full; it was changed about two years ago and I haven't had to add any since.
Can anyone help me diagnose this issue, or offer any other suggestions as to what it may be? Thanks in advance!