Trim/Tilt Pump on 225 Mercury
 

Ok people, my starboard motor trim/tilt pump is humming, but takes a minute literally to move. Is there a fluid fill on it or is it DOA??

Re: Trim/Tilt Pump on 225 Mercury
 

You've probably already resolved it but, hum and slow does sound like low hydraulic fluid, or low battery/bad contact. My last hum was low reservoir (re-filled). See any fluid or film around trim hoses that may suggest a hose, o-ring or fitting leak? Don't know yer motor so don't know about refill... What year models are your motor and trim motor? I think most of the late models have fill hole on port side near top of reservoir. Usually @ least a 1/4" screw or bolt.

Re: Trim/Tilt Pump on 225 Mercury
 

im not sure about the 225 tilt bracket but on my mid 90's 200 bracket when the engine is up there is a fill screw on the left side of it. if you open it and no fluid comes out it might need some fluid. fill it till its full and runs back out put the screw back in and try it out. i used regular atf in mine.

Re: Trim/Tilt Pump on 225 Mercury
 

sounds good. thanks for the help. these 1996 225's have been running well,ask Briguy we got close to 60mph before she got a bit to tuff to control at the Desoto Gathering. With gas back down, using the boat makes sense again

Re: Trim/Tilt Pump on 225 Mercury
 

Danny, sounds like low fluid...
Check for residue of fluid around the ram seals.
Go to any FBO, (Airport) look for any flight operations
and get a gallon of red hydraulic fluid. ATF is Ok, but
the red has no bad stuff in it that can further damage
your seals. Texaco brand is what I have always used
in the TNT and the Bennett reservoir..
See ya, Ken

Re: Trim/Tilt Pump on 225 Mercury
 

thx Ken! I will check it out.

Re: Trim/Tilt Pump on 225 Mercury
 

For sure sounds like low fluid. ATF worked for me in my old yami's. You may want to take off a lid from some other container that has a little pop up thingee. It makes it easier to squirt in the little hole without getting atf everywhere.

Also I think the gps said 65 not 60! :eek:

Re: Trim/Tilt Pump on 225 Mercury
 

I use an old "Slime" tire sealant bottle, with an 8" piece of 5/16 clear plastic hose pushed over the nipple on the bottle.

Re: Trim/Tilt Pump on 225 Mercury
 

Roger that! Thanks guys.........

Re: Trim/Tilt Pump on 225 Mercury
 

Snookered, I see you have twin 225's how does the hull handle them in relation to the scuppers? I just bought an 81 it also has twins, the previous owner had plugs laying on the floor next to the scupper drains so I kind of figured they would be neccessary, I have yet to put the boat in the water no heartburn if I have to use them. Can't wait till spring to try her out..gonna be a long winter.

Re: Trim/Tilt Pump on 225 Mercury
 

compared to my old 18SF with a very light 130 Yami, my 23SF sits as good or better with regard to the scuppers. Each motor is around 445 lbs (carbs) and the bracket offers very little floatation. I leave my plugs out most of the time.

Re: Trim/Tilt Pump on 225 Mercury
 

Pulled the boat out to do some work on her. Another question-I planned on filling this res. pump due to low fluid, and now all I get is just a bunch of clicking sounds. I heard that there is a solenoid that may be dead and to pull the unit and connect the Trim/Tilt pump directly to power and see if it is just the solenoid. The motor is stuck down, can I gently jack the motor up with a floor jack to get access??

Re: Trim/Tilt Pump on 225 Mercury
 

yes if you open the releif valve. its on the starboard side of the mounting bracket under the trim pump. all you need is a big flat head screw driver.

Re: Trim/Tilt Pump on 225 Mercury
 

Danny, If you have a clicking sound chances are its the solenoid. I would definitely check your battery connections and make sure they are absolutely clean. If you have 2 batts use some jumpers and see if 24 volts cures your ills. I can get you parts for cheep. My 19999 60hp Suzuki clicks while trying to raise the motor if the battery is discharged partially. Also since you have twins you can switch the solonoids.

Re: Trim/Tilt Pump on 225 Mercury
 

The clicking noise you hear is the solenoid..
Raise the motor by loosing the bleed screw.
Take a hammer and tap on the motor while pressing
the up/down button. Chances are if the case on the
motor is rusted, then water got in it and seized up.

Good Luck, Ken

Re: Trim/Tilt Pump on 225 Mercury
 

Thanks for the responses..........Ken-The case is rusted and may be toast, what's the cost of a new pump? Brian-The idea to swap pumps to test is a good one. Blue-Thx for the relief valve comment.

Re: Trim/Tilt Pump on 225 Mercury
 

i dont think you need a pump. i just had the same thing happen to me. i changed out the motor and have been fine ever since. i would look ebay or screamandfly.com for a trim motor.

Re: Trim/Tilt Pump on 225 Mercury
 

I think your solinoids are the same as mine? - they are right between the 2 cylinder banks - the top is down bottom is up and you will probably hear it click - take a screw driver hit the up switch and just cross the 2 large terminals and it will come up - they are cheap although there are only a couple, the correct one will have rubber grommets on the mounting plate - $52 - buy the one without grommits $29 use your grommets to mount it simple - a Merc dealer will be able to get the solinoid for that motor without grommets - I think they are Mercruisers and grommet style for outboards. NAPA has them too but the Sierra I bought only lasted a year.

Re: Trim/Tilt Pump on 225 Mercury
 

We tested it last light and it is the trim motor. Thx again Blue and ESD. Off to search out that part........