OMC Tilt

[danthern]

Hi.....I've had fairly constant problems with raising the outdrive on my 1977 235hp OMC electric shift. Replaced the tilt motor with no luck, just the clicking at the solenoid. I get 12 volts to the solenoid on the starboard side, 12 volts to the first connection on the port side solenoid, but nothing out to the motor. Replaced that solenoid today. The outdrive raised about 1/4 of the way up, back down and then stopped. Back to the clicks now....any suggestions?
Thanks!

 

[QC]

Re: OMC Tilt

Have you seen this thread? Some good general info there:

Other OMC tilt thread

 

[danthern]

Re: OMC Tilt

I did see that thread. I've checked and cleaned the connections and as mentioned, changed the motor and a solenoid. Not being electrically adept, I'm not sure what my readings on the voltmeter mean. I get 12V to the input sides of both solenoids but there is no reading on the out terminal going to the connector. Is this normal? Also when I test at the connector to the motor, there is no voltage reading. Thanks for any suggestions. Just wanted y'all to know I did search past posts before posting a new thread.
Thanks

 

[QC]

Re: OMC Tilt

I am guessing there would not be any voltage going out unless you were hitting the switch . . . I was thinking more about the quadrant being damaged or the in/out adjustment thing somebody tried in that other thread.

Don't ask me, I used to fix my Stringer tilt motor by banging on it. Often worked.

BTW, anybody who has tried to use the new Search feature wouldn't blame you for giving up. Bleecchh!!

 

[danthern]

Re: OMC Tilt

Thanks for the advice, OC. Went out to try it again this evening. Actually tried to work for a minute. Damndest thing I've ever seen. Gotta get a helper to hit the switch while I'm at the outdrive. I'll keep on trying to figure it out and keep y'all posted. Any other suggestions are welcome!

 

[Mahoney]

Re: OMC Tilt

You can try what I did in the other post and jump the solenoid terminals to see if it engages the motor to tilt the drive. That would at least let you know the motor is good.

If you got 12 volts to the hot side of the solenoid and jump that with a screwdriver to the other big terminal it should complete the circuit and activate the motor. If that doesn't work. Your motor is shot, or you have a bad connection/wire on the short trip to the motor.

 

[NW Redneck]

Re: OMC Tilt

If it works by jumping the soleniod like Mahoney said, see if you get voltage on the other side with someone hitting the switch. If not, check if you have power coming from the switch to energise the solenoid. that should tell you which one is your problem

 

[Boatist]

Re: OMC Tilt

Make sure you check the 2 50 AMP FUSES on the starboard side above the starter.

 

[danthern]

Re: OMC Tilt

Thanks a bunch guys. I'll run all those checks this morning. Boatist, I've always heard about those 2 fuses. Don't have them on this boat or if they are there, I don't know what I'm looking at and I've done a motor swap on this thing! Thanks again for the expert advice, I'll keep you posted.
Dan

 

[Boatist]

Re: OMC Tilt

The two fused look more like a cable harnnes than a fuse holder.

 

[Mahoney]

Re: OMC Tilt

Sounds like you have the exact same issue I had. I ordered a replacement solenoid at napa delived to the store next day for $20 and fixed it. they carry sierra part numbers.

If that out terminal isnt hot when you hit the switch or is just fluttering at 3-4 volts the solenoid is bad. Sounds like the exact same issue I had.

Get yourself another solenoid and I am betting your are all good to go!

 

[Mahoney]

Re: OMC Tilt

On those fuses, my engine actually has them in a red looking messy epoxy bulb. Ugly and if you bust it open to check you need to redo the whole linkable fuse assembly.

 

[supercab78]

Re: OMC Tilt

You may need to remove the clutches that on the outside of your drive unit. Make sure they are removing freely and not rusted together. They may be putting to much load on the motor. Some how take the load(weight) off the small gear.You then remove the four bolts and cover. You should have oil in there"no water". At this point remove the clutches. May need to remove snap ring first I can't remember. After you get it out you should be able to spin the motor by using the switch and see how it works without a load on it.. The clutches have friction & steal plates. After they are seperated you may get by with sanding the surface of the steal plates. Then reassemble and fill with 10w30 motor oil. If it happens to work you may want to fix the leak, especialy if you keep it in the water.

 

[danthern]

Re: OMC Tilt

Thanks alot fellows! Great suggestions and I'll follow up on all of them. Going out of town for the weekend today so I won't get a chance until next week. This forum is invaluable and has helped me numerous times. Can't say thanks enough. No OMC guys in my area that I know of, so it REALLY helps! I'll let you know what I find out. Again, many thanks.
Dan

 

[danthern]

Re: OMC Tilt

Hey Guys....Replaced the solenoids and still no luck. I'm not sure I have them wired properly. Anyone have a pic of the way it should look? 235hp fixed mount.....
Thanks!

 

[NW Redneck]

Re: OMC Tilt

Hey Guys....Replaced the solenoids and still no luck. I'm not sure I have them wired properly. Anyone have a pic of the way it should look? 235hp fixed mount.....
Thanks!

You should have 3 terminals. The two large lugs are power from the battery and out to the trim motor. doesn't matter which is which. The smaller lug is for switched power from the tilt switch. Ground is through the mount to the engine.

Sorry, don't have a scanner.:'( Hope it helps!

 

[danthern]

Re: OMC Tilt

Thanks a lot!! I'll keep you posted on the progress.