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Ooltewahman

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Posts posted by Ooltewahman

  1. Just wanted to update. I took apart the relay. Even after cleaning the contacts the inside part was not transferring to the prong that the wire hooked on to. So I drilled out the rivet and put a small but and bolt thru. So then it started making contact. Put it all back together and it started working great. So thanks yet again for the help

  2. Thanks for the help everyone. Dan I will try that this weekend. I was hoping to not have to spend $50 on a relay lol. I'll let u know if it works. I bet your right and all I need to do is clean the contacts. Thanks again

     

    Steve

  3. Ok found it. The housing itself is grounded. The front stud on it is hooked to constant power. The green wire goes to the horn. But when the wire that goes to the horn button on the steering wheel is plugged in, it has power until the button is pressed in. But the green wire never has power on it. No matter what. When you press the button you can hear it clicking. Does that mean that the relay is bad?

  4. I know this is a stupid question, but where is the horn located on a 72? I can't find it anywhere. I can push the horn button and hear the relay click under the dash but the horn won't blow. I also can't see where the horn use to be if someone has removed it.

  5. Yes, Steve, I now believe those three studs only hold the tach in place and the two copper studs to the left of them in the photo are the power and ground connections.

     

    It sure sounds like your tach may be bad but I would still check or redo those two connections of the tach to the circuit board.

     

    The only other thing that might cause a faulty circuit is that big 12-connector plug. It has to be oriented correctly or none of your other gauges would work and the common ground is also apparently good, but that wire (fourth down from the top on the bottom row in the photo, as Robert said) might not be correctly or fully seated in the plug - or the contact surface might be crushed or bent.

     

    It would be a shame to replace the tach if it has just been a connection problem for a long time.

  6. Yes all 12 wires are intact and the other gauges work. I did check that call fuse and it's ok and I did have the battery disconnected. Everything besides the tach works. But those 3 prongs on the back of the tach doesn't have any wires attached to them. I don't think they should tho. I think it's all done thru the circuit board isn't it?

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