C2 heat issues

[Jeremy Hedges]

I have a '65 coupe that has just been completely rebuilt, when the car heats up over 215 or so it sometimes dies and the amp gauge is showing over 30 or so. After the car cools down (say when I start driving again) the temp lowers and the amp reads back to normal of just over 0. What could be causing it to overcharge and cause it to die? It starts up after it dies OK, just take a few more cranks. This usually happens after I have been idling in traffic for a while. I have a breakerless ignition just FYI. Any thoughts?

Jeremy Hedges
#31711

[Jim T.]

Re: C2 heat issues

Jeremy one reason you could have a temp increase idling in traffic has been mentioned many times here. You need full time vacuum and a 100% functional vacuum advance unit. If your car is at idle and you disconnect the rubber hose to the vacuum advance on the distributor and the engine RPM decreases, your vacuum advance is OK. Another problem could be the thermostatic fan clutch, if it is not 100% effective, it could be a cause of the temp rise idling in traffic. As far as your car overcharging, I am not sure. The cause of the car to die, I am not sure. You could convert back to points and condensor and see how it performs. I like the points and condensor set up on my 68, gives me something to check with my engine analizer my wife gave me over thirty years ago.

[Jim T.]

Re: C2 heat issues

Jeremy one reason you could have a temp increase idling in traffic has been mentioned many times here. You need full time vacuum and a 100% functional vacuum advance unit. If your car is at idle and you disconnect the rubber hose to the vacuum advance on the distributor and the engine RPM decreases, your vacuum advance is OK. Another problem could be the thermostatic fan clutch, if it is not 100% effective, it could be a cause of the temp rise idling in traffic. As far as your car overcharging, I am not sure. The cause of the car to die, I am not sure. You could convert back to points and condensor and see how it performs. I like the points and condensor set up on my 68, gives me something to check with my engine analizer my wife gave me over thirty years ago.