Trim sender for old Mercury

[Ricky_rich]

I have just bought a nice trim guage that I would like to use on my Mercury 1150 from 1970. I have the powertrim system with the pump inside the boat and hoses going out to two cylinders. What kind of sender should I get and where to mount it?

 

[Fun Times]

Hi there, I don't believe there is going to be a trim sending unit available to just bolt on your engine model.

http://www.mercurypartsus.com/forum4/trim-gauge-1978-1150-mercury-th2789.html

If you really want to make this gauge work, you may have to become creative by fabricating a way to make a sending unit work on your engine model.

Here is a photo image list of a bunch of trim sending units to look through to see if you can make something work.

http://www.bing.com/images/search?q...outboard+trim+sending+units&sc=0-17&sp=-1&sk=

If you make anything work, be sure to share your ideas.....Good luck.

 

[Ricky_rich]

Thans for your advice. Guess I will try to make my own solution, think a OMC sender that have a little arm might work. Just have to hope the resistans will match guage.

 

[Chris1956]

Rick, The piston retraction amount could drive the sender, if it won't work any other way.

 

[wired247]

An OMC sender wont work on a mercury gauge. Different resistance. Off the top of my head I don't know the ohms requirements but OMC is different than mercury. In any case you MIGHT be able to rig up a linear potentiometer to run off the hydraulic actuators but waterproofing will be a hassle unless theres something close off the shelf.

If it were mine and I REALLY wanted a trim indicator I'd run a manual cable setup with a mechanical indicator ... such as half way down the page...

http://www.jaysmithracing.com/

 

[Chris1956]

Of course the other choice is to mount a variable resistor next to the gauge. Adjusting the variable resistor will change the gauge setting. The gauge will look cool, and you can consider yourself as the trim sender. Just a joke.

 

[merc850]

The gage is for 1973 and later Mercruiser stern drives, a Mercury dealer might be able to match a sender. Either part Nr. B-56046A4 or B-63115A4.