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Daves55Sedan · 04-06-2019, 11:50 PM

Okay so I did connect a test lead with alligator clips between "ACC" terminal and both guage (-) terminals then reconnected the battery, turned on the ignition switch and kept my fingers on the test lead to detect heat build-up. I left it like that for a minute and detected no heat at all. So I disconnected battery again and installed my home-made power harness to the gauges permanently. Connected the battery again and the gauges work just fine.
There was sluggishness in the operation of the temperature guage needle. It seemed to skip large intervals between its default position and cold. I removed the guage and noticed that the needle was rubbing against the black faceplate, so I bent it back straight and re-installed it. Tested again and now it operates smoothly. Still have not driven to see if speedometer is working. Will do that tomorrow. The clock switch is still shut off. Probably will not make another speed adjustment till I need to take a long trip.

04-06-2019, 11:50 PM	#18
Daves55Sedan Senior Member Join Date: May 2010 Location: Granite City, Illinois Posts: 3,008	Re: '55 Ford car instrument repair Okay so I did connect a test lead with alligator clips between "ACC" terminal and both guage (-) terminals then reconnected the battery, turned on the ignition switch and kept my fingers on the test lead to detect heat build-up. I left it like that for a minute and detected no heat at all. So I disconnected battery again and installed my home-made power harness to the gauges permanently. Connected the battery again and the gauges work just fine. There was sluggishness in the operation of the temperature guage needle. It seemed to skip large intervals between its default position and cold. I removed the guage and noticed that the needle was rubbing against the black faceplate, so I bent it back straight and re-installed it. Tested again and now it operates smoothly. Still have not driven to see if speedometer is working. Will do that tomorrow. The clock switch is still shut off. Probably will not make another speed adjustment till I need to take a long trip.