tilt/trim motor not working after replacement

Casper5659

Recruit
Joined
Jul 30, 2010
Messages
3
I am new to this site, so I will apologize now if I have broken any rules. I own a 115HP Mercury 1989 motor. My tilt trim stopped working while cruising back to the dock. took it to a boat repair, and they disconnected the bullet connectors that run from the tilt motor, and placed the motor contacts on the postive wire from the battery and ground, and nothing happened. they said the motor was bad. not wanting to spend 120.00 labor and 100.00 for a used trim motor, I replaced it myself by buying a new motor for 150.00. I unscrewed the lower tilt assembly so that the motor/cylindar/ram was hanging by the clevis at the top of the cylinder. had no problems replacing it, refilled the reservoir, and prior to reconnecting the lower tilt assembly back to the boat, I tried it again, and nothing again. I verified 12vdc and -vdc at the boat side bullet connectors that attach to the motor connectors in both the up and down position. I can also hear the relays clicking as I accuate the switch. I disconnected both relays but did nothing with the contacts or anything, I just reconnected them. I have placed the motor wire contacts on the positive terminal on my motor block and to ground and it is doing nothing. Is there anything that I am overlooking. the obvious answer to me (which is not saying much) is that my original motor went bad and the new motor that I installed just happens to be bad also. what else could it be that I have not checked. thanks so much in advance.
 
Last edited:

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: tilt/trim motor not working after replacement

If you are jumping the motor's wires directly to the battery and it doesn't work then the motor is bad.
 

Casper5659

Recruit
Joined
Jul 30, 2010
Messages
3
Re: tilt/trim motor not working after replacement

All is now well. I took the new motor off to send back to the company, and tested it one last time by touching the motor leads to the battery terminals, like I did 100 times while installed. Low and behold, it worked like a charm. I reinstalled it, testing it at various times during the install, and it worked great. I now have a new trim motor, installed for 150.00 vice having a used trim motor installed for 220.00. Thanks for all the help.
 

Wingedwheel

Lieutenant Junior Grade
Joined
Jun 16, 2009
Messages
1,071
Re: tilt/trim motor not working after replacement

Sounds like you possibly didn't have your ground hooked in correctly.
 
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