Ridgerunner
New member
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- Location
- Holland, Mi
The tach quit working in my truck last fall right, before I put it away for the winter season. I assumed it was the tach drive cable. I'm just taking it out now, and getting it ready for the up coming Memorial day parade and wanted to fix it before then. I pulled the (assumed) broken cable to replace it with another, but once off the truck, I could see that it was still functional and not broken. I did have a little ware spot in the outer sheathing from rubbing on the compressor pulley (just the outer rubber), so I switched it anyway with the new one. Hooked everything up, and the tach still didn't work. changed the tack with a different one and still nothing. I can spin the tach (both of them) with my fingers and the needle moves like they should. And if I unscrew the drive cable from the back of the tach, while the truck is running, the drive cable is spinning also, just like it should. I'm at a loss here, I spent an entire night working on it, and got no where......
Dumb question (maybe) At the back of the tach, where the square drive cable goes in, the hole is round, but the drive cable is square. What am I missing here? Why is the (female end) on the tach hole round, but the drive cable (male end) is square? How does this spin the gauge properly to function?
Dumb question (maybe) At the back of the tach, where the square drive cable goes in, the hole is round, but the drive cable is square. What am I missing here? Why is the (female end) on the tach hole round, but the drive cable (male end) is square? How does this spin the gauge properly to function?