trim indicator wires fried?

rebars1

Senior Chief Petty Officer
Joined
Feb 23, 2004
Messages
744
I am restoring a 1974 IMP 225S Ford 302. <br /><br />I was getting ready to re-install the engine when I noticed the insulation around the two wires the pass through the transom housing was hard and would crumble when I moved it. The two wires are mostly wrapped in tape, but as I pealed back the tape and messed with the wire insulation, the insulation would continue to break off. I noticed on another transom assembly that came with the boat that the insulation on those wires appears to be brittle also. <br /><br />Is this a common problem? Does the heat from the Y pipes tend to fry these wires? Finally, how does one replace them? What do they conect to? I could not see a connection on the bell housing pivot pins.
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: trim indicator wires fried?

It's a very common problem Mercury Marine saved some money on the sender wires and the customers have been paying ever since
 

Trent

Captain
Joined
Nov 17, 2001
Messages
3,333
Re: trim indicator wires fried?

As was said... Very common problem.<br /><br />Take a look here.
 

novicetech

Petty Officer 1st Class
Joined
Jan 19, 2004
Messages
267
Re: trim indicator wires fried?

If you are going to replace them, now is the time to do it before you get it all back together. Personally mine are bad too, but at the cost of the switches, it just seems easier to set the trim by feel.
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: trim indicator wires fried?

The switches get old,water gets into them.Then the water 'wicks' up the wires,corrodes the metal,and the corrosion kills the the insulation.Or the wires get spliced into to cut corners.<br /><br />DHP
 

JWboing

Cadet
Joined
Jul 17, 2005
Messages
28
Re: trim indicator wires fried?

I just bought a 120 hp Mercruiser 1982. The trim indicator doesn't work. I guess this is my problem.
 

rebars1

Senior Chief Petty Officer
Joined
Feb 23, 2004
Messages
744
Re: trim indicator wires fried?

On another boat I hsve, (1971 Merc 888), the wires were just cut off at the housing. The trim position guage still works, but I guess the trim limit would not I have not actually check it. When I pull the bell housing to replace the bellows, will I be able to see the wires?
 
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