Shipyard Isl. Marine Engine Parts - 250 OX66 Trim Problem
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12-10-2011, 06:10 PM
I have a 2001 250 OX66 that will trim up fine, but when I try to trim down one of the trim rams will freeze and not allow the motor to go down. I tried tilting the motor all the way up and supporting it on the tilt stop to try and free the trim ram, and after trimming down one trim ram will retract and the other will retract only after the first ram has fully retracted. Any ideas?
12-14-2011, 04:32 PM
I don't know if being low on fluid would do it but if it's like mine it's probably leaking and probably low. I'm sure Andy will know how to help you.
01-02-2012, 12:04 PM
The fluid level is topped off. When the motor is trimmed down and hits the 2 trim rams, one ram will retract while the other ram appears stuck. When the first ram is fully retracted, then the second ram will retract and allow the motor to lower. Any ideas?
The trim rams are common with each other, and are common with the center tilt cylinder. Fluid wise. That is why when you physically push on one down, the other rises and vice versa.
If it was me, I would dis-assemble the unit and give it thorough cleaning and re-sealing(orings). You might have a issue going on with the down valving, or the system is just full of debris and needs to be cleaned.
What does the fluid look like, and how are you checking the level?
01-03-2012, 10:16 PM
It took a while. Andy must have been on vacation. Shame on you Andy. :)
01-25-2012, 10:49 AM
Bringing this back to the top cause Andy makes a good point about dirt, etc. On my 200's I replaced leaking trim seals on one motor and sucked all the oil out with a turkey baster. It worked and sounded so smooth that I replace the fluid on the other motor. Doing the same on the 225's this Spring. The trick is buying the Yamaha spanner wrench. Makes the job a snap!