Mercruiser 120 R Drive Tilt Issue

[egleas84]

I noticed that my tilt only works in DOWN or when I press TRAILER (goes up). The up switch does not work when the engine is down. My trim gauge is pegged at UP at all times; so I either figured I have a bad trim motor relay or there is a sensor/switch that is broken/disconnected, etc...

Anyone have experience with this? I suppose I could just trim up with the trailer button while under power
Thanks!

 

[Don S]

Re: Mercruiser 120 R Drive Tilt Issue

Probably nothing more than a defective trim limit switch, or it's way out of adjustment. Below is a link to download the OEM service manual, once you download it, look at section 1C. There are details on troublshooting the trims electrical system, with wiring diagrams.
http://www.4shared.com/document/zz_5pj9o/Service_Manual_06.html

 

[dn010]

Re: Mercruiser 120 R Drive Tilt Issue

Have you opened up the sensor to see what is going on inside? I opened mine up and it was shorted out due to oils from really old grease. Cleaned them up, reinstalled and I now have working limit switch and gauge

 

[egleas84]

Re: Mercruiser 120 R Drive Tilt Issue

Have you opened up the sensor to see what is going on inside? I opened mine up and it was shorted out due to oils from really old grease. Cleaned them up, reinstalled and I now have working limit switch and gauge

Nope, but now that I know it exists (for sure) I'm going to check that out! Or replace it.

Thanks guys!

 

[egleas84]

Re: Mercruiser 120 R Drive Tilt Issue

Here was the problem! All tilt/trim restored... Pain in the back getting my hands in there with electrical tape. Trim gauge still stuck at UP... I should probably check my wiring from the tilt motor to the gauge... There wasn't too much nasty grease in the switch. I neglected to check the other side or mess with the alignment of the switch though.

 

[Bondo]

Re: Mercruiser 120 R Drive Tilt Issue

Pain in the back getting my hands in there with electrical tape.

Ayuh,... Good Luck with that,...

Generally, it's either Replace 'em, or By-pass 'em inside the boat....

 

[dn010]

Re: Mercruiser 120 R Drive Tilt Issue

Yeah generally when the wires look like that the insulation is done, will soon start to crumble like sand. Good thing is you can re-wire these, bad thing is the extreme confined space makes it a tough task... But it is possible without removing drive etc.