VDO gauges

[major hattitude]

Happy Father’s Day looking for input 1989 65 MY all gauges work
Properly on lower helm upper helm starboard gauges are pegged
High including RPM gauge never happened before any ideas what
Is wrong input would be appreciated 😊😊

[Glory]

If it us all gauges I would look at ground, the gauges likely share the ground.

Good luck

[major hattitude]

Thank you but it’s only on the upper helm starboard side all other gauges work
Good !

[Glory]

Each engine station harness likely have their own power and ground.

[cww]

I have this same problem but only on my oil pressure gauges. One side it's always reading high, and the other side reads lower than I know it is, below the point that the alarm would ring if it was actually that low (and I have tested the alarm, it works). Now that I had the engines rebuilt and the oil pressure is higher on both, the gauge that reads high is pegged at anything over idle. Unlike you I have this problem both upstairs and downstairs.

[major hattitude]

I replaced the starboard alternator last week I wonder
If that had something to do with it starboard gauges at
Upper helm worked fine before that also oil gauges on lower helm
Are not reading correct on starboard side reading slot higher
Than normal 🤔🤔🤔

[cww]

I replaced the starboard alternator last week I wonder If that had something to do with it starboard gauges atUpper helm worked fine before that also oil gauges on lower helm Are not reading correct on starboard side reading slot higher Than normal 樂樂樂

Your symtoms are now exactly like mine now that you’ve described them. Bet somebody disturbed a ground when they did the alternator. Dying to find out which one so I can fix mine.

[major hattitude]

I’m going to disconnect all the wires from the Alternator tomorrow and see if that changes anything I’ll let you know

[tonytrakovich]

Going from memory here. Wouldn’t it be the power side? Red power daisy chains all the gauges. Ground on each gauge goes back to the sending unit. Check connections at alternator. Also check fuses in DC electrical panel on aft bulkhead. Look for a little glass or ceramic fuse that provides power to the ignition.

[Bob Quinn]

Watching, having similar problems. Some starboard gauges jumpy and/intermittently drop to zero.
Both tachometers dropped out yesterday.