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Where's the problem?

Posted: Mon Jul 07, 2025 8:47 pm
by laltenhofen
T died on the road. The starter turned the engine. I got no buss at the coils. Fuse I have in system ok.I ran a wire from pos post battery to bottom of coil box. Got coils to buzz, car to start and got home. So where is problem? Switch?

Re: Where's the problem?

Posted: Mon Jul 07, 2025 8:58 pm
by mtntee20
Sounds like the switch or a broken wire in the loom.

Re: Where's the problem?

Posted: Mon Jul 07, 2025 9:02 pm
by Kevin Pharis
There’s not too many wires on a T. The starter is not controlled or regulated by the ignition switch. If you were able to “hot wire” the coil box directly from the battery, the problem is somewhere between the two. Should just be a wire from the starter switch to the terminal block on the firewall, another wire to the ignition switch, the switch itself, and any connections in between. I would start by checking connections, then pull the switch

Re: Where's the problem?

Posted: Mon Jul 07, 2025 9:04 pm
by JTT3
Ockham’s razor winner. It’s most likely the problem check the connections on the back but first try moving the key slowly and see if you coils buzz. My experience with a similar situation it was the contacts inside needed cleaning & the contacts lifted a bit. Good luck, best John

Re: Where's the problem?

Posted: Thu Jul 10, 2025 5:14 pm
by laltenhofen
Fuse was the problem! A visual said element was not blown but ohm reading proved otherwise. Because of gen/ voltage reg problems, I have 6 v alternator on there now.