Power Tilt / Trim question

[gsmpelion]

Recently purchased a used Pontoon boat (2006 Triton with 115 Mercury 2 stroke motor. The 1st weekend I spent time cleaning up boat, somewhat getting to know it. Walked inside home for a few moments for it came a heavy rainstorm, when I returned to the boat, the motor trim was running, and all the way "upward" position. (???). I hit the "down" button and the tilt motor stopped. I disconnected battery. Over the weekend took boat out for the 1st time,,,when I hooked-up battery the tilt upward started again,,hit the down button and it stopped. Continued on with our day,,did notice later in pm that when the boat is under load (running), the motor will not tilt UP,,if boat is sitting idle, the it will tilt upward fine. Done a bit of googling and am getting the idea the pump may not be bad, along with the uptilt relay.
Gest of the long story above,,looking for a more experienced opinion. I am somewhat automotive techanical and not afraid to step off into uncharted waters, just like a little guidence in the right direction.


Thanks in advance for any and all replies

[boats.net]

Water has got inside one of the trim switches, need to replace switch.

[gsmpelion]

Tend to agree with the possibility of water inside either the trim switch and/or the up relay,,just pondering as to why the motor will not tilt up under a load ( awhile moving in the water). Sitting still, operates fine, but when traveling , will not tilt upward. ????

[boats.net]

Does not have enought power to push the motor up under load.

[gsmpelion]

Was that a question or a comment ?

Are you suggesting that due to the switch and/or relay being bad that it is preventing proper current transfer to the motor when attempting to tilt up under a load ( moving in water) ?

[boats.net]

Yes, that was a statement, sounds like the PTT cannot push the engine up under a load. Could be faulty motor, relay's or low on fluid.