Engine miss

[Lloyd Moore]

My 67 Coronet has a 383 2 barrel and the original points-type distributor.
It runs fine until it reaches operating temperature then it starts missing
like it's running out of gas, or the fire is breaking down. Any ideas what's
going on with my ride? Thanks.

 

[PP1RT]

Choke hung up?

 

[miller]

Double post.

 

[dadeo]

Possibly bad condensor. Happened to me, easy fix.

 

[khryslerkid]

Possibly bad condensor. Happened to me, easy fix.

Yep, try the condenser first. If it still does it try another coil.

Make sure your point gap is good. Too close will change with temperature.

That's three items that act up as the engine gets up to temperature. Think simple first.

 

[Slap Stick]

If that doesnt do it remove the dizzy cap and check for rotational play in the dizzy shaft. If it moves more than a few degrees you have a worn intermediate oil pump shaft/bushing. It acts like a miss at light throttle settings and idles in gear kinda lumpy.