Mercury 115 power trim failure

[medic28640]

My Mercury 115 power trim sometimes fails to operate especially trim down. Sometimes when I press the button all that happens is I hear a loud audible click. (selanoid switch?) It has only happened a couple of times trim up. What do you think?

 

[SpinnerBait_Nut]

Re: Mercury 115 power trim failure

Don't know what year merc you have, but a lot of them had 2 solenoids on them, 1 for up and 1 for down.<br /><br />If you are hearing a clicking noise, that is coming from them.<br /><br />You might check your connections good and make sure they are not loose or corroded.<br /><br />More than likely though, you have one going bad.

 

[moderator1]

Re: Mercury 115 power trim failure

Moving to Outboards.

 

[dgohmann]

Re: Mercury 115 power trim failure

When it just clicks...Wack the pump with the butt end of a screw driver (preferably rubber) while someone hits the switch. Hopefully the motor is in a position where you can see the pump. I bet you it will start to work. Thats how mine is right now. I will be looking into whether its the pump or a fluid issue in the up coming weeks. Just added fluid last year so I am worried, but we'll see.<br /><br />Dan

 

[heyitswebb]

Re: Mercury 115 power trim failure

I have a 1985 115hp Merc. I experienced the same problem, It ended up being the pump motor, the cap where the brushes were burnt up, It happened slowly, I could never figure out what the problem was till it was too late. I lost the hole pumbp motor and have to replace it. It cost almost $450 to fix it. That part [the top cap of the pump motor] is no longer made or available from mercury. I found out after I replaced it[ the whole pump and assembly] that and alternator shop that rebuilds car alternators could have rebuilt that top cap for under $50. So be careful what you do. Fix it now before you sink a alot of money an time in it. Good luck, Tim Arkadelphia AR