installing tach

[thejum57]

I want to install an after market tach in the Comanche. I'm pretty sure which wire goes where, but one goes to the (-) side of the coil. I don't see a coil here. Is this what replaced the coil in later years??

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If so, where the heck do I hook up the tach???????? Thanx, Jim

[FxRacing282]

yes. thats an external coil. the wire for that should be on the distributor... i believe. on Delco-Remy it has a plug that says "TACH". not 100% on jeep but if tis not there its probabally on he distributor.

[Pete M]

My aftermarket tach went to the coil, or more precisely, one of the wires right below the coil. Can't remember which one though. I'm thinking black. It was in the instructions that came with the tach. Can't even go look since I removed it for a factory setup years ago.

[thejum57]

I don't see anything on my distributor but the plug wires. Does it matter that it's a 4 cyl.?

[Pete M]

Mine went to the coil area, not the dist. I don't know if there's an attachment point at a Jeep dist.

[BLHTAZ]

Go to my post here... viewtopic.php?f=9&t=12734

 

It is an electrical manual. Scroll to page 15 and it will show you a detailed diagram of the coil/ignition module wiring including the tach output.