Anyone know how to open/repair this gauge?

guy48065

Chief Petty Officer
Joined
Aug 31, 2008
Messages
521
Faria voltmeter doesn't respond.
How do I open and repair this?
It's from a 2000 Bayliner with an automotive-type instrument panel. The gauge twist-locks into the IP.

No visible fasteners. Faceplate seems to be glued to the cup.17565926502427650126183773184259.jpg

17565927012253258104816646380906.jpg
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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Check with marine surplus in Sarasota FL. The have NOS gauges that look similar
 

airshot

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Jul 22, 2008
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Probably corroded from age, you can be assured they were not designed to be repaired. Throw away and replace is today's motto ! From your pics, my guess would be the face plate comes off the front after prying the needle off carefully. The guts are probably attached to that face plate as it appears they will pull out from the back. You might try a thin blade knife to get under that faceplate and hope for the best. I do believe be you can find a very similar replacement if things go wrong...
 

guy48065

Chief Petty Officer
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Aug 31, 2008
Messages
521
Got it open.
No corrosion. Nothing obviously burnt up but the wires to the meter coil are finer than hair so I probably couldn't see if it was separated anyways.

I can't find a used replacement for this online. I'm sure there are other voltmeters that look different but use the same internal movement. Problem with that is it would be a matter of luck finding one with the same size, connecting pin type, sensitivity, needle sweep, etc.

20250830_224915.jpg
 

guy48065

Chief Petty Officer
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Aug 31, 2008
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Check for a Digital Gauge that Size.
It's looking like my best option.
I've ordered a couple different ones from Amazon that will fit in the cup--after I break out the prongs that hold in the analog movement. I think it'll be an easy project.

All things considered I think this will be an improvement over original.
 

tg3690

Lieutenant Junior Grade
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May 7, 2019
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This Faria-Beede website is a mess of mixed signals.
5-week turn-around. $55 to repair my gauge...but...
It sounded like you were wanting to keep it original (look, function, size, etc) so getting the old one repaired would make sense. If not, get a new one. Faria recently purchased Beede Instruments, so they only repair original Faria products, which is what you have if it says Faria on it.
 

StewartL

Seaman Apprentice
Joined
Jul 23, 2025
Messages
48
Look for a thin metal retaining ring around the edge of the glass or plastic lens. Pry it out carefully with a small flathead screwdriver. This will release the faceplate from the cup. Check the internal fuse and wiring connections for corrosion or breaks. The movement is likely sealed and not repairable; replacement is the usual fix.
 

kd4pbs

Petty Officer 2nd Class
Joined
Mar 5, 2012
Messages
194
That is an air, core needle movement. I just repaired the one in my multifunction gauge which swings the tachometer needle. I was able to find an inexpensive gauge on that auction site, which had a diesel tachometer in the multifunction gauge and just transferred the air, core meter movement to my gasoline engine tach. It was a bit of a surgery operation, but in the end, it worked fine. I discovered the issue was that the movement in my old gauge had spots in the swing which caused the rotor to hang up. Perhaps lubricating that was some oil and spinning it around a bunch will free yours up to work.
 

kd4pbs

Petty Officer 2nd Class
Joined
Mar 5, 2012
Messages
194
Look for a thin metal retaining ring around the edge of the glass or plastic lens. Pry it out carefully with a small flathead screwdriver. This will release the faceplate from the cup. Check the internal fuse and wiring connections for corrosion or breaks. The movement is likely sealed and not repairable; replacement is the usual fix.
It seems like you use a lot of AI garbage in your posts. It is obvious to anyone who read the original post that your suggestion is way off base. What’s up with that?
 

guy48065

Chief Petty Officer
Joined
Aug 31, 2008
Messages
521
Look for a thin metal retaining ring around the edge of the glass or plastic lens. Pry it out carefully with a small flathead screwdriver. This will release the faceplate from the cup. Check the internal fuse and wiring connections for corrosion or breaks. The movement is likely sealed and not repairable; replacement is the usual fix.

Ring?

17565926502427650126183773184259-jpg.411003
 

StewartL

Seaman Apprentice
Joined
Jul 23, 2025
Messages
48
It seems like you use a lot of AI garbage in your posts. It is obvious to anyone who read the original post that your suggestion is way off base. What’s up with that?
My suggestion may be off base that doesn’t make my post ai garbage. I might miss the spot but I assure you I am making this at the best of my knowledge.
 
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