Trim sender intermitant, can I clean/ open sender unit?

pcweber

Cadet
Thread starter
Joined
Aug 1, 2011
Messages
28
In the middle of the ?stroke? of tilting the outdrive up the gauge shows the outdrive ?full up? for a while, then correct again. I assume in the sweep of the rheostat inside the sender there is some corrosion or something. I have read many posts after searching about replacing the sender being a fairly large job. I am wondering if I can remove the sender and if there is a way to open it and spray it with contact cleaner, etc?
 

Bondo

Moderator
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Joined
Apr 17, 2002
Messages
71,539
Re: Trim sender intermitant, can I clean/ open sender unit?

In the middle of the ?stroke? of tilting the outdrive up the gauge shows the outdrive ?full up? for a while, then correct again. I assume in the sweep of the rheostat inside the sender there is some corrosion or something. I have read many posts after searching about replacing the sender being a fairly large job. I am wondering if I can remove the sender and if there is a way to open it and spray it with contact cleaner, etc?

Ayuh,... You can Try, but I doubt success is in yer cards...
 

dccordell

Chief Petty Officer
Joined
Apr 28, 2010
Messages
415
Re: Trim sender intermitant, can I clean/ open sender unit?

If you take those 4 little screws out on the outside of the switch, you can see the contacts inside. If you could get it to work, I don't know how long it would last...
 

Brentathon

Petty Officer 1st Class
Joined
Dec 29, 2009
Messages
399
Re: Trim sender intermitant, can I clean/ open sender unit?

I'm sure I'm not the only person who considers the trim sender/gauge system completely useless.
If that's your only problem with your boat, consider yourself lucky.
 

lg260ss

Petty Officer 3rd Class
Joined
Jun 25, 2011
Messages
81
Re: Trim sender intermitant, can I clean/ open sender unit?

Just replace the potentiometer inside the sender. Merc part number 805134a4 costs about $16
 
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