What could the reason be that my coil on my 73 mav 302 (original points ignition) is getting hot? Should I not worry about it? The coil that is on it now seems to be a stock coil or appears to have been on the car for some time. The car runns ok BUT, after a while (on the highway) it starts sputtering and cutting out. I checked the fuel filter and its ok. My guess is its a fuel or ignition problem. Could it be the hot coil? Any suggestions would be great! Thanks , Mark Bracken
The problem could be either ignition or fuel supply. A bad fuel pump will cause the same results. The carb runs out of fuel after awhile because the pump can't supply enough but still idle and run on short time intervals. The coil starts the motor on full 12 volts but is then switched to a resistor in line when the ignition switch is in the run position. Look at the points condition. If burned or pitted can be an indication. They get to live in some engine oil vapors that doesn't help. The coil draws about 7 amps of current. Thats about 75 watts of power everytime the points close many times per second. With engine heat added, the coil can get quite hot to the touch. When in doubt sub it.
coil It's old, just replace it. They break down after a while when hot a loose power. Coils are oil cooled and they're just cheaper to replace. Same goes for fuel filters and rubber hoses. Especially fuel hoses. They should be checked for cracking every oil change, brake hoses to.
