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Its in the FAQ area, no one can respond their, yet folks keep posting in it

Yes, that is what I was thinking If it cannot be adjusted to work smoothly, then it needs another sender or its a gauge issue

Remove the sender and adjust it so gauge reads down, then reinstall on gimbal and fine tune if necessary

Use some dielectric grease

No seals on the lower pin https://www.mercruiserparts.com/bam/subassembly/30872/2203/40

Instead of opening the harness, I would check at the to the PCM connector pins as listed

Place the thermostat in a pan of water on the stove with a thermometer. See if it opens and at what temp

Need to scan the motor for codes My thought is there is a sensor wire which is disconnected Gray to B-21 (Ground) Dark Blue/White to B-11 (Sense) Black/Pink to B-1 (5V)

Depends on which drive @kenny nunez

Its very rare to see a lower pin wear out, and don't know of anyone installing one there

The 20 amp fuse feeds everything on the ignition side. Gauges, TBV, alternator, alarm, other Anyone of the things could cause the issue

Recon I got nothing else to offer, wish I did. An ALT is a pretty simple device, apply 12V to S and Ex, rotate and so long as they are connected to the Bat being charged they work or they don't

I also know that ALT from DB and have one sitting on the shelf (100 amp), its a piece of crud. Got a one wire and a connector to add Sense and Excite leads, and never did work correctly

I'm thinking problem in the 10 pin engine connector or splice connection with the 50 amp breaker Red from starter post to 50 amp Red/Purple from 50 amp to 10 pin and ALT Purple from 10 pin to ALT Get an ohm meter and disconnect battery, then ring out the wires

No clue, may have been plugs used to keep dirt out prior to assembly

Check the fitting on top the drive that the intake hose connects to. Many times the fitting gets corroded and restricts water flow Can also get a piece of clear hose from the HW store and place it inline using barbed fittings. Connect it at the thermostat where the hose comes from the...

Don't know what boat/motor. Assuming I/O Should be no reason not to hose the boat down, so long as the water doesn't get high enough to reach the starter

How long have you had the boat? There are fuses in several locations and there should never be smoking from hot wires unless the fuse was replaced with a higher amp type. Your ignition fuse should be no larger then 20 amp

This is a @Bt Doctur question If he doesn't respond, send a PM

Thanks roscoe, you the guy, worked like a charm. Also nice all the fuses are easy to get to. Bad part is the printing is dark on black, hard to read, and my guess may not last very long