stalling

anyway the tractor has ran fine up until now and is stalling like vapor lock but can't see where the fuel line is getting heated up ..... after a while it restarts..... .but stalls again depending on how long of a cool down I allow ..... ...overnight allows another run of about 30 minutes before a stall? couldn't be the coil could it?

You are certainly having the symptoms of a overheated coil. You can verify if it is ignition or "vapor lock" by checking for spark immediately after it has heated up, stopped running, and won't start.

I would have used "Dell's Trick Resistor ahead of the coil. The Pertronix folks are giving the OK to run without a resistor, based on what their MODULE will tolerate, and they must not have figured out what a delicate piece of @*$^ most of the generic "12-Volt square-can coils" are.

At this point, you can try adding the resistor, but the coil may have been overheated to the point where it is permanently damaged.

Then, you'll have to start over with a new coil AND a resistor.

I see no reason NOT to try "Dell's Resistor". The added resistance certainly will not cause any damage, the worst result with too much resistance will be weak spark, but the worst result of NOT enough resistance in the circuit will be a failed coil, and then, possibly a failed module.

• Other thread:

I think he said that "Pertronix" said to just use the OEM Ballast. They did not say to run the coil without a resistor.

BTW: The late 70's Dodge use a RU-11, book said its operating resistance is ~ 1.5- 1.7 Ohms.

JM02$

Ron..... .you write..... .."well everything has been going fine now with my (Pertronix) conversion since this little discussion we had but now my tractor is stalling after a while of running..... ..(eh? re-define "running fine" please)

it starts back up after a few minutes but only runs for a few more minutes and stalls again..... ....(melted insulative tar shorts out the coil windings)

if I leave it overnight it runs longer before stalling..... ..(wannna what overnite cooldown does to melted insulative tar?)

could this be vapor lock..... ...(you think its vapor lock? crack open yer tankcap but remember its very hard to vapor-lock a gravity fed fuel system)

it couldn't be the coil could it. (YES!!!)

If it were the coil it would just go out and not start again right?"..... ....(ignition coils are NOT like lightbulbs or fuses. They have eazy to overheat and melt insulative tars and shorts out the coil windings and cause weak sparkies and ultimately engine stops running until the tar hardens again)..... .....respectfully, Dell yer self-appointed sparkie-meister