'92 Merc 175 T/T Stuck

Post by **RodBow** » April 16th, 2006, 8:25 am

My wife is looking at an unspecified boat type that has a stuck T/T. When we ran it yesterday the onboard mechanic was able to jerry it down in order to test drive the vessel, but after that it seemed to just die. No matter how much fiddling he did, he could not get the T/T to bring the motor back up.
The solenoid clicks when you push the button, but no engagement.

Any ideas or anyone know what this type a thing costs to repair - before my wife buys this 25' albatross??

Post by **wevans** » April 16th, 2006, 8:36 am

It could be a lot of things, bad solenoid, bad ground, bad switch, or "most likely" a worn out T&T motor

Jerry's Auto Electric "in Tally" can rebuild most motors for a third of the price of a new one

Post by **tin can** » April 16th, 2006, 9:38 am

Wevans is on the money. I would start by checking the solenoids. Possibly a switch. If it's the motor, take it to Jerry's.

Post by **Jumptrout51** » April 17th, 2006, 2:07 pm

What they said and in that order. If its a bad solenoid you can jump the 2 hot wires on the solenoid and it will work. If it does not work it is the motor.

Post by **RodBow** » April 20th, 2006, 2:04 pm

Thanks. Is there some step by step instructions somewhere you know of?
This is my T/T now

It's model: 1175412MD

Post by **tin can** » April 20th, 2006, 3:12 pm

RodBow wrote:Thanks. Is there some step by step instructions somewhere you know of?
This is my T/T now

It's model: 1175412MD

What kind of motor?

Post by **wevans** » April 20th, 2006, 4:32 pm

'94 Merc 175 T/T Stuck

Post by **tin can** » April 20th, 2006, 10:43 pm

There are two solenoids under the cowling. If the motor will tilt one direction, but not the other, switch the solenoids around. If the motor switches which direction it will go, you have a bad solenoid. Remove one of the solenoids. If the motor still tilts one direction, the one you removed is bad. If the motor won't do anything, the one not removed is bad.

You should have at least 2 t&t switches on the boat. One on the control lever, and one on the motor. If one of those switches makes the unit work, and the other doesn't, you have a bad switch.

If the motor won't go up or down, smack the trim motor with a hammer and try again. If it works after hitting it with a hammer, remove the trim motor, take it to Jerry's, and have it rebuilt. Your brushes are worn out.

If you would like, call me Monday, and I'll help you trouble shoot it.

Post by **RodBow** » April 28th, 2006, 7:49 am

Thanks to TC's intervention, all I may have is T/T that needs Geritol!

He performed a personal inspection, worked some magic, and suggested cleaning all the green stuff off.

This guy is full of information and came by it the old fashioned way - he
e-a-r-n-e-d it!

Thanks TC!

Post by **wevans** » April 28th, 2006, 8:24 am

He is good at SOME things

Post by **tin can** » April 28th, 2006, 8:29 am

You're most welcome, Rodbow.

It has been said that my head is filled with an unlimited amount of useless information.