The only thing I've opened up was the fuel sending unit. It just needed cleaned & reassembled. I think I'd test them before opening them up. If they're dirty inside & there's an opening in the case you might try blowing them out with one of those clean/dry air cans you get for blowing out your computer. On my 38 the gauges are all open anyway. I can clean the glass without messing with the gauges.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
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