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Re: 66 cluster/gauges questions before reinstalling
You're welcome! When shopping for resistors to use for testing, you won't have to be too concerned about wattage or tolerance ratings for this application. Also be aware that you can combine multiple resistors if needed to obtain the desired resistance.
When resistors are connected in series, the resistance simply adds up: Rtotal = R1 + R2 + R3 + ...
So for example, you could buy two 15Ω resistors, use just one of them to test the fuel gauge at 1/2 tank, and then connect both of them in series (to give 30Ω) for the full tank test. Similarly, you could connect a 15Ω and a 68Ω resistor in series (to give 83Ω) for the temp gauge hot test. And since you don't already have some, I wouldn't even worry about buying any additional resistors to test the temp gauge near the cold end of the scale ... simply leaving the sending unit terminal disconnected (infinite resistance to ground) should make the gauge peg to the cold side.
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