Trim gauge all or nothing

[okcbubba]

My trim gauge will register all or nothing. Full up or full down, but nothing in between. I followed the suggestions in some earlier posts to clean the contacts in the sending unit on a Mercruiser Alpha drive. I found that the sending unit has a considerable amount of grease/lubricant in it. Is this normal? If so, is there any special type grease to use after the contacts are cleaned? The grease has a green cast to it, so I suspect water has gotten into the unit. Thanks

 

[phaeton]

Re: Trim gauge all or nothing

yes grease is normal<br />yes green colour suggests copper corrosion<br /><br />you may be able to clean up the coper contacts enough to restore full function of the sender unit - worth trying<br /><br />replacement includes all the wireing back into the boat I believe.....<br /><br />good luck with the cleaning route!

 

[JStutz]

Re: Trim gauge all or nothing

I had the exact same problem with mine. While the boat was in for service I had the mechanic replace the sender and all is well. I don't think it is a real hard thing to replace, the hard part is buying just the trim sender itself. It normally comes packaged with the tilt limit sender also which makes it expensive.<br /><br />Jeff

 

[dfwyatt]

Re: Trim gauge all or nothing

PS, you may also have a trim limit siwtch in place of your tilt sender