318 Ignition

I’m confused. You killed 3 different ignition’s in the same chassis you are sure it the fault of the ignitions?

I ain’t buying it. While I’ve had 2 MSD boxes fail on my machine I’ve never had a a R2R or a Pertronix fail like that.

Something else is wrong.

I don’t have a clue what failed or why on the R2R deal but the Pertronix stuff is sensitive like the Mallory Unilite is.

Any and I mean ANY dirty power off the alternator and it will kill them.

Most rebuilt alternators like the parts stores carry are just junk. They use cheap junk diodes and stuff and they make dirty power.

For the Unilite Mallory developed a filter that plugs in line and stops or cleans up the dirty power or something like that.

I’d be looking at what’s killing this stuff.

I know a bad ground will kill an MSD box pretty quickly.

I’d stop blaming the ignitions and figure out why they are failing.