I recently built a new instrument panel for our boat. I originally ordered VDO instruments, but didn't like that they used push connectors instead of screw connectors, so I returned them and got Faria Euro instruments instead. Now that I have used them for a couple of weeks I am finding I have a few problems. I have tried to calibrate the tachometer to my older (newly rebuilt) Balmar 6 series alternator, however when I can get the higher rpms close, it reads several hundred RPMs high at idle. There is not setting on the calibration scale where it is not wildly out of whack at one extreme or the other. The fuel gauge usually needs a tap on the glass to begin registering after startup. The volt meter reads 12.2 even though I have 13.4 coming into the batteries, and 13.1 at the back of the meter using my Fluke DVM. All this makes me question the accuracy of the oil pressure and water temp gauges, which at least are reading in what I would expect to be correct ranges. Any suggestions or comments?
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