OMC trim motor problems

[nocturnaloxygen]

hey guys I just took out the old trim motor on my 1977 fiberform, and I got a new one to replace it. It wasn't working when I flipped the switch all I heard was a clicking noise. The first thing I did was to have the selinoide tested and it came back OK. I tore out the old motor and it was seized up. Now with the new motor in place I still here the clickin noise and there is no power to the motor. I haven't put a mulitmeter to the connections yet to see if i'm getting power but I'm at a lose as what to do. HELP!!!

 

[Boomyal]

Re: OMC trim motor problems

do you mean trim motor or tilt motor. They are not one in the same on the OMC stringer and not all had a trim function. They were optional.

 

[nocturnaloxygen]

Re: OMC trim motor problems

It's a tilt motor. real pain in the butt to get out, not quite sure once i figure how to get it operational again, How to get it back in. sorry for all the questions I'm new to all of this but I want to be educated, so i can take care of the boat better than the previous owner.

 

[Boomyal]

Re: OMC trim motor problems

If the solenoid is ok (one each for down and up) you either have a bad ground, seized pivot trunions or a bound up tilt clutch mechanism. Where did you get the tilt motor? There are some cheap ones that won't cut it.

 

[nocturnaloxygen]

Re: OMC trim motor problems

I got the motor off of Ebay. Is there a picture for all that stuff you mentioned? I have no idea where the pivot trunions or tilt clutch mechanism are..

 

[Boatin Bob]

Re: OMC trim motor problems

I think getting yourself even an aftermarket manual would be a wise investment, there's not a lot of online documentation for the older stuff. Check ebay for sometimes used but good condition OMC factory manuals as well.

 

[nocturnaloxygen]

Re: OMC trim motor problems

well I had the Trim motor tested, Yes the (NEW) trim motor, and it was Bad.... I'm soooo frustrated right now it took over a week for that stupid thing to get here...... AAAAAHHHHHHHH

 

[nocturnaloxygen]

Re: OMC trim motor problems

I put a multimeter on the connector that plugs into the tilt motor and when I flipped the switch it read only 2.0 volts both up and down... what should be the applied voltage going to the motor? and if it's not getting what it needs what is the cause? thanks

 

[KaGee]

Re: OMC trim motor problems

In the past experiences here, majority of the tilt problems are electrical in nature. All the connections on the ground and solenoids need to be cleaned up of corrosion.

 

[nocturnaloxygen]

Re: OMC trim motor problems

I have cleaned the posts and gounds and I'm still getting clicking. I have a new motor, new solenoids, and a new battery. I have 12v leaving from both solenoids I tested it going to the motor.. I even added an extra gound to the motor and It still won't turn...... I'm so frustrated right now I've spend the last 3 days tearing that stupid motor apart. It's probably something really simple I'm just not seeing it. If i'm getting 12v to the motor and It still won't spin is the motor bad??? the manufacture told me it was tested before it left the warehouse and it was good..

 

[KaGee]

Re: OMC trim motor problems

Well, I'm confused.... you said you only had 2 volts at the motor. Now you say you have 12? What is it?

Assuming you have 12 and all your connections are good and clean as you say. Install the motor and connect it up. The next step is to remove the tilt quadrant gear from the drive. Have someone flip the switch while you inspect the drive gear for movement. It should move freely. If not, then you have some binding in the tilt gear box. Disassembly and inspection of the gear box is in order. These gearboxes leak, does it even have oil in it?

If the gear box works freely, then you have to see if you can lift the drive freely by hand. If you cannot, the trunion caps must be removed for cleaning and re-grease. I believe someone already mentioned it above.

 

[nocturnaloxygen]

Re: OMC trim motor problems

it's going to take me awhile to get this right, I found out that the blue and green wire leaving the motor are not Hot, and Nutural. when i hooked up the multimeter to the plug I was testing both hot, I put one to ground and then I got 12v. My mistake on the 2v needless to say even with the motor not hooked up to the gears, just sitting there in the open I still do not get any power. oh well i'll just wait till i get my OMC book and then i'll tear it all apart.

 

[nocturnaloxygen]

Re: OMC trim motor problems

Oh and if it's at all possible I would like to hold off tearing about the gear box if i don't have to, I'm going to get a new motor and see if that works. then i'll go from there. I'm sure i'll have some more questions along the way hopefully the book will answer them for me though. sorry about the outbust of rage I'm sure you all know about that.

 

[THE BEEF]

Re: OMC trim motor problems

Im not sure but I think the two wires are for up and down.
You would have to ground the case of the motor if you have it out laying on the deck to the battery NEG side.Then try and see if it runs. You can use a battery jumper cable.Just make sure you clean the connection spots well.

 

[whywhyzed]

Re: OMC trim motor problems

what Beef said - on the other side of the connector (boat side) the wires are green and blue - green is down (green grass) and blue is up (blue sky) same as merc i think. Some OMC's use a ground wire on the motor, others use the motor housing for ground.
All the schematics in the back of the Seloc manual show the various arrangements. Working on this stuff with no manual - not good for the blood pressure. You actually might have fried the motor hooking the 2 wires to + and -....

 

[nocturnaloxygen]

Re: OMC trim motor problems

success!!! I got my New Seloc manual and I got to work.. I took the old tilt motor and tore it apart like the manual said. I cleaned it up put it back together and put it back on the boat, hit the switch and up and down she went.. what a relief this book really shows the novis boater the ropes all is good thanks again guys, without this board I would have been drydocked.

 

[Manipulator]

Re: OMC trim motor problems

I remember on mine it was a nightmare to get to. That is until you remove the transom boot. Not too hard then.

 

[nocturnaloxygen]

Re: OMC trim motor problems

The first time I took it out I used regular wrenches because I couldn't get a socket and ratchet in there. Then i remembered I had some Gear Wrench ratchet wrenches, I had that thing in and out within about 5 minutes. Gotta love those wrenches. I wasn't going to mess with the boot, my luck something bad would happen and i'de have to buy a new one.