Tilt/Trim diagnose

[lana-n-me]

My first stern drive motor. Always felt comfortable with outboards, and then I got talked into buying a I/O.
1989 OMC Cobra.
The tilt/trim just clicks when I push either up or down. I believe there is only 1 of 3 solenoids clicking when I make this attempt. A little hard to be certain, but I can feel pretty clearly when I tested this way.
All solenoids have power going through them, (just don't know how to test with anything other than a test light).
I have cleaned all contacts thoroughly and checked all fuses except for the breaker. Cannot find.
All advice/help appreciated.

 

[Don S]

Re: Tilt/Trim diagnose

What engine, and are you sure the engine is 89? Got a model number for your engine?
As far as I know 89 OMC's didn't have 3 relays for trim and tilt.

 

[lana-n-me]

Re: Tilt/Trim diagnose

Sticker on this motor. 2 Model #'s show. 3.0 litre.
1) 985268
2)302AMRGDP

 

[Boatin Bob]

Re: Tilt/Trim diagnose

302AMRGDP...this is actually a 1988 3.0 ltr.
You have 2 big 50 amp fuses on the top at the rear of the engine near the big wiring harness connector There is no breaker). One of them is strictly for trim/tilt. You only have 2 solenoids (up/down). You can use this wiring diagram to help trouble shoot

http://www.selocmarine.com/content/manuals/3404/pdf/340410w151.pdf

 

[lana-n-me]

Re: Tilt/Trim diagnose

Very cool!
I needed the schematic and almost bought a shop manual just for it.
Thanks for all the info.

 

[Don S]

Re: Tilt/Trim diagnose

Having the right engine really helps. Look at the trim control box in the 89 wiring diagram, compared to your 88.

THIS IS AN 89 3.0L Cobra Wiring diagram
http://www.selocmarine.com/content/manuals/3404/pdf/340410w153.pdf

 

[lana-n-me]

Re: Tilt/Trim diagnose

Problem found.
Water in tilt motor. Need to replace/rebuild.
Frankly, I wish this was 89. Finding all the in line fuses is a pain in the a@#.