Tilt and Trim not working

Billy O

Seaman Apprentice
Joined
Feb 5, 2010
Messages
42
I have a 1978 115 evinrude that the t&t quit working on. Came back from fishing and put motor down to flush. 2 days later it won't go up. Solenoid just clicks. Thought this was strange but bought a new one and installed. New one does the same thing. This is a 3 wire setup hooked up to a single solenoid mounted inside boat. How can I test and be sure the problem is or isn't the trim motor?
 

Anchor Management 1

Petty Officer 1st Class
Joined
Apr 27, 2009
Messages
259
Re: Tilt and Trim not working

If it will not go up put direct power to the blue wire and the motor should make the drive go up.
 

bob johnson

Rear Admiral
Joined
Feb 25, 2009
Messages
4,306
Re: Tilt and Trim not working

on my late 80s 70 HP the wires were loose and I could drive the trim up or down by touching the blue and green wires to a battery...green to pos and blue to negative made the motor go one way, switch the wires and the motor went the other way.

i would bet you could try the same thing.

good luck

bob
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: Tilt and Trim not working

on my late 80s 70 HP the wires were loose and I could drive the trim up or down by touching the blue and green wires to a battery...green to pos and blue to negative made the motor go one way, switch the wires and the motor went the other way.

i would bet you could try the same thing.

good luck

bob

No, it's a three wire motor with a common ground. Black wire negative, alternate positive to blue or green depending on direction.

The solenoid is only used to raise the motor, not to lower it, so be sure that it is wired correctly.
 

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Billy O

Seaman Apprentice
Joined
Feb 5, 2010
Messages
42
Re: Tilt and Trim not working

Thanks guys, will try a jumper to the blue and green wires as soon as this dang rain stops.
 

Billy O

Seaman Apprentice
Joined
Feb 5, 2010
Messages
42
Re: Tilt and Trim not working

Still no go, picked up a used unit but it is a 2 wire hook up. Do I need a different connection?
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: Tilt and Trim not working

Still no go, picked up a used unit but it is a 2 wire hook up. Do I need a different connection?

The two wire motors require a relay system that reverses polarity. Unless you want to buy new, you can make one with a reversing solenoid or try to find a used relay box from a salvage yard.

See the following for the differences between two and three wire motors: http://www.arcomarine.com/xhtml/tech tilt trim motor tips.pdf
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: Tilt and Trim not working

Thanks guys, will try a jumper to the blue and green wires as soon as this dang rain stops.

Did you jump the black wire to the negative battery post?
 
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