TILT & TRIM

**Atimm693** · 01-24-2019, 11:06 AM

Originally Posted by FIN

The relay clicks. I've only found 1 relay. I think the brushes are worn. Sometimes it work if you bump it. But I can't even get it to work at all. There is a short somewhere.

If the motor tries to run when you beat on it, that's textbook brush failure. If you have a multimeter, set it to DC volts, and place each lead on the big solenoid posts, and push the trim button. If the meter reads more than a volt, then the relay is bad. The easier test is just to jumper the posts with a screwdriver.

You may be able to get brushes, but chances are the armature and bushings in the motor are worn as well. If there are any starter/alternator repair shops left in your area, bringing it there is the best option, they specialize in repairing electric motors.

You can likely buy a new motor assembly as well, check DB electrical, they had the best price for the Trim motor on my 60 Merc.

**FIN** · 01-24-2019, 06:58 PM

Thanks all for the support. The solenoid is bad. Also found water in the motor. I think I can fix it now.

**FIN** · 01-24-2019, 10:28 PM

Originally Posted by sliderman

The OP is describing the old style circuit that omc used for several years. It uses a single solenoid on the up circuit that is located in a plastic box mounted in the bilge area. (The solenoid resembles an old ford firewall mounted starting solenoid.) It has no slave circuit for "down" operation. I would trace the wires from the motor back to the plastic box. From there, you will have a positive and negative cable going over to a battery. Check battery voltage. You should also find an inline fuse somewhere on the positive cable. Make sure cable connections are good. You can apply positive side power to the up circuit at the solenoid with a jumper to test the motor. Based upon the age of the system, I would expect the motor brushes to be worn out. But corrosion of the wiring system may be the culprit. (You "might" get it to operate by tapping the top of the motor with a metal object while applying power if the brushes are stuck. But tap only the top and don't get to aggressive with it.)

You nailed it.

**FIN** · 01-30-2019, 09:52 PM

The local starter and alternator guy fixed it for $32

Thread: TILT & TRIM

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