Pre Alpha Sterndrive Mercruiser 165 inline 6 Trim Sender Unit

corona2627

Seaman Apprentice
Joined
Jun 19, 2010
Messages
41
Still working, and probably will be working, on my 1971 Glastron Mercruiser 165 inline 6, I believe I have a pre alpha unit. Wires to Trim Sender corroded, broken sheathing, in horrible condition. Took outdrive off, will replace all belows, water hose, etc. Serial number, as best I could find, is 3078952 on the sterndrive. In reseaching I see that my trim sending unit is NLA. Is this true? How will I replace this unit is so? Could I just replace the bad wires, I know your suppose to replace the switches too, but what if you cant find them. Also, where is the switch located on this sterndrive? I cant seem to find a answer in my Seloc manual.

Your help is much appreciated,


Dianne
 

Bondo

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Apr 17, 2002
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71,413
Re: Pre Alpha Sterndrive Mercruiser 165 inline 6 Trim Sender Unit

I cant seem to find a answer in my Seloc manual.

Ayuh,... This might Help,...

If yer parts are Nla,...
Ya make do without, or cobb together whatever suits ya....
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,487
Re: Pre Alpha Sterndrive Mercruiser 165 inline 6 Trim Sender Unit

You either have the pucks on the sides of the steering ring or you have a hyd sender unit inside the boat
 

corona2627

Seaman Apprentice
Joined
Jun 19, 2010
Messages
41
Re: Pre Alpha Sterndrive Mercruiser 165 inline 6 Trim Sender Unit

I have no visable pucks on the gimbal, the wires from the inside of the boat go thru to the transom, so would the trim sender unit be located in the transom?
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,487
Re: Pre Alpha Sterndrive Mercruiser 165 inline 6 Trim Sender Unit

those may be the trim limit if they come in at the top of the housing.The hyd.actuator is mounted at the transom.bondo, you have the link for manual 2, thats the one I used on cd and may be for this persons boat.
 

mike165

Petty Officer 2nd Class
Joined
Apr 14, 2011
Messages
196
Re: Pre Alpha Sterndrive Mercruiser 165 inline 6 Trim Sender Unit

I have no visable pucks on the gimbal, the wires from the inside of the boat go thru to the transom, so would the trim sender unit be located in the transom?
See if the lines from the pump go to a switch *** on the transom inside the if so it's hydralic
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,413
Re: Pre Alpha Sterndrive Mercruiser 165 inline 6 Trim Sender Unit

those may be the trim limit if they come in at the top of the housing.The hyd.actuator is mounted at the transom.bondo, you have the link for manual 2, thats the one I used on cd and may be for this persons boat.

Ayuh,... Right here,...
 

corona2627

Seaman Apprentice
Joined
Jun 19, 2010
Messages
41
Re: Pre Alpha Sterndrive Mercruiser 165 inline 6 Trim Sender Unit

Thank you gentlemen for all your help, downloads and answers, I will study the manual...

Sincerely,

Dianne
 
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