merc cruiser hydraulic problem

[doorman1690]

I have a 1995 maxum 3 litre motor merc cruiser. I raise the trim and it lowers itself over 24 hours. Any suggestions or comments? Thanks, Joe

 

[Don S]

Re: merc cruiser hydraulic problem

Moving to IO forum.

Below is a link to the OEM service manual. Go to section 1C page 18 for the troubleshooting section.
Section 5 will provide repair details.
http://www-alt.mercurymarine.com/mnetdata/SERVICE/CRUISER/Servmanl/14/14cover.pdf