Power Trim doesn't hold

sfg

Recruit
Joined
Apr 10, 2009
Messages
2
Just bought an 86 Mariner 150 HP and after trimming the motor up in just a matter of moments, the tilt unit won't hold the motor up and it lowers. Any one have any suggestions as to what to check.
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: Power Trim doesn't hold

First thing to check is your manual relief valve to see if its loose.
 

sfg

Recruit
Joined
Apr 10, 2009
Messages
2
Re: Power Trim doesn't hold

Releif valve is tight. Any other suggestions before I take to a dealer service center?
 

Nickledimed

Petty Officer 3rd Class
Joined
Feb 16, 2009
Messages
87
Re: Power Trim doesn't hold

Clockwise is locked, counter clockwise is unlocked.....
While trailering it should be turned all the way counter clock wise.
in the water is should be turned all the way clockwise.
 
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