how do I service and bleed my power trim

[shkntstrd]

I have a 2001 Bayliner trophy with a 150ph saltwater Mercury. My trim system has three actuators, one in the middle to raise the motor and two on the sides to trim the motor. There is a white plug above the left actuator. Is that the servicing plug? I belive there might be some air in the system because my motor will come out of the water when I put it in reverse. And it won't drive all the way down unless I push it.

 

[Kiekhaeferscurse]

Re: how do I service and bleed my power trim

Is the manual tilt valve turned all the way in? Thats the valve on the starboard side of the engine.<br />If the system is full of oil (check with engine in full up position) tilt lock on.<br />and the manual release valve is fully closed (clockwise) the system will bleed itself with continued cycling <br />Cheers

 

[shkntstrd]

Re: how do I service and bleed my power trim

The manual tilt valve is in, I tried unscrewing it and it works fine (the motor comes down). And I have already checked the oil level with the motor up (when I unscrew the plug above the left actuator oil comes out) I have ran the motor up and down at least 20 times this week and I still have the same problem. Is there any seals I might have blown?

 

[Kiekhaeferscurse]

Re: how do I service and bleed my power trim

You have covered the basics, the next steps require disassembly and removal of the unit,(tilt trim assy) unless your profienct at Hydrallics (at least a better mechanic than I am a speller), you may want to take it to a shop, They will have the tools and the guages to test the unit, and the hoist to hold the motor up if it needs to be removed.<br />Good luck, sorry I cant be of more help.

 

[shkntstrd]

Re: how do I service and bleed my power trim

Turns out I'm a hydraulic mechanic in the air force, I'm already in the works of pulling the whole trim system out and disassembling the main actuator to see if I blew a seal. Thanks for the help.