- Jan 5, 2023
- Reaction score
- Greenfield, WI 53220
Can anyone tell me how to bench test this unit to make sure the light works.
ground the case and apply 12 volts to the wire. It won't be too bright so you might have to check it at night.Can anyone tell me how to bench test this unit to make sure the light works.
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Thanks for the instruction. One other quick question if you have a moment. Can you somehow bench test a 4 wire Console Tach, which has the internal sending unit, to see if it is a functioning piece. I know how to test the 3 wire tachs with the external sending unit by using a D Cell battery.Orange wire is for the light. Connect that to the positive terminal of a 12v battery, and connect the other wire to the negative terminal if there is no second wire, connect the case to the negative terminal of the battery. If the bulb is good and the connections are not corroded in the bulb's socket, the bulb should light.
Testing the vacuum gauge involves drawing a vacuum through the bigger black rubber tube. Use a small vacuum pump. If it's in good shape the needle should rise.
Thanks for sharing your knowledge. Really appreciate it.I am not sure..
Green wire goes to the coil, orange wire to the light, but the others I don't know.
I agree with hooking it up on a running car. I'm going to go that route.Depending on how much effort you want to get into, I think you could chuck a points-type dizzy in a drill and wire that ground wire to the tach?
Or does the tach look for interruption in the + wire to the coil?
Regardless, some mocking of an ignition system is possible.
At some point, though, it's just easier to wire it up underhood with some jumper wires onto an operational engine.