Engine issue

[Moteaux 10]

All the information here is good and good things to check or recheck. If you are having trouble during a load or acceleration, this may be due to a vacuum leak, but it can also be caused by a weak or inoperative accelerator pump in a carburetor, as well as ignition problems such as a cracked coil, worn spark plugs or incorrectly gapped plugs.

 

I know you have covered some of these things, but dont hesitate to recheck and possibly investigate vaccum. Un-metered air entering could be causing you a lean mis-fire. My .02.

 

Hope you get it sorted.

[69mustang351W 0]

The flamethrower got it sorted :), more details written in my previous post

[69mustang351W 0]

Some weeks after the engine ran well, I drove the car, and the engine didnt ran 100% well. The engine hesitated a bit under load. But it still ran much better than before i changed to flamethrover. Im gonna check the timing soon, but I guess the reason can be a cable lead/fitting, which sometimes dont have fysical contact or a break which now and then has contact.

[69mustang351W 0]

Some weeks after the engine ran well, I drove the car, and the engine didnt ran 100% well. The engine hesitated a bit under load. But it still ran much better than before i changed to flamethrover. Im gonna check the timing soon, but I guess the reason can be a cable lead/fitting, which sometimes dont have fysical contact or a break which now and then has contact.

[69mustang351W 0]

I adjusted the distributor by rotating it. I touched the leads on the distributor with my fingers then I got electric spark in my hands. Thats shows that the lead probably has bad isolation or a break. Just to bye new leads :)

[69mustang351W 0]

I adjusted the distributor by rotating it. I touched the leads on the distributor with my fingers then I got electric spark in my hands. Thats shows that the lead probably has bad isolation or a break. Just to bye new leads :)

[69gmachine 15]

I adjusted the distributor by rotating it. I touched the leads on the distributor with my fingers then I got electric spark in my hands. Thats shows that the lead probably has bad isolation or a break. Just to bye new leads :)

 

Sounds like you've identified the problem. I'm guessing you have the old style 7mm wires with carbon graphite conductors. They have a very high resistance, and when the dielectric shield breaks down, they'll arc over to the nearest ground as you've found. I'd replace them with modern 8mm spiral wound wires. Even cheap replacement wires are better than the old 7mm graphite conductors.

 

Might want to replace the plugs at the same time while you're in the area.

[69gmachine 15]

I adjusted the distributor by rotating it. I touched the leads on the distributor with my fingers then I got electric spark in my hands. Thats shows that the lead probably has bad isolation or a break. Just to bye new leads :)

 

Sounds like you've identified the problem. I'm guessing you have the old style 7mm wires with carbon graphite conductors. They have a very high resistance, and when the dielectric shield breaks down, they'll arc over to the nearest ground as you've found. I'd replace them with modern 8mm spiral wound wires. Even cheap replacement wires are better than the old 7mm graphite conductors.

 

Might want to replace the plugs at the same time while you're in the area.

[69mustang351W 0]

I ordered MSD wires today. I replaced the plugs late last autumn, but Im gonna recheck the gap on the plugs also, when I replace the wires.

[69mustang351W 0]

I ordered MSD wires today. I replaced the plugs late last autumn, but Im gonna recheck the gap on the plugs also, when I replace the wires.