Have a 72 olds in the shop the owner really wants to old keyed cable hood lock ignition kill re installed.
Only thing left is the wire from the lock , the inline fuse ( how many amps ) and resistor are long gone. I do not know what belonged in there. Long before my time when they where installing these.

i would consider a remote key fob ignition kill also if there is a simple kit out there.

thank you


The switch still works

Not sure if indicator still works?

 

Google is your friend. It looks like an ignition ballast resistor. It appears that all this system does is ground the negative side of the coil. The exact resistance value is not critical.

http://www.megatronixusa.com/manuals/HLManual.pdf

 

i found that , its lacking the fuse size and resistor spec.

 

Select a resistor value that makes you happy, then calculate the fuse rating per Ohm's Law: I = V / R

 

Again, this is not a critical value. All this system does is ground the negative side of the coil. The drawing shows a resistor the looks like a comment aftermarket ignition ballast resistor. I've done a similar kill switch with just wire. Something under 35 ohms is fine. I can't even see what the fuse does. That's a ground circuit.

 

Interesting so why does it have a fuse?

 

"...out of an abundance of caution..."

I mean, seriously, that's the ground side of the circuit. Apparently this lock was not designed by rocket scientists.

 

im curious also since electrical science is not my thing why the resistor if its simply grounding the circuit?

 

You'll have to ask the people who developed that kit. It appears from the instructions that their system is designed to be used across a multitude of different factory ignition systems, including electronic ones. The resistor won't hurt a point-type ignition system and is likely needed for the other applications. That lets them inventory and sell a single kit instead of multiple different part numbers.

 

makes sense.