how to rebuild trim cylinder

[donaldm]

I have a 2005 alpa one gen ll. one trim cylinder has a very small oil leak at the rod oring. so ive removed the round cap with a spaner tool. Im trying to pull the piston & rod assemble out but it feels spring loaded or maybe it need air behind the piston? How do i get air behind the piston? once i replace the orings and reassemble the cylinder do i need to bleed the air out? and if so how? is there a rebuild instructions on the web?

 

[Don S]

Re: how to rebuild trim cylinder

How do i get air behind the piston?

Is the cylinder still on the boat? If so, disconnect the lines.

 

[Eric 3.7LX Alpha 1]

Re: how to rebuild trim cylinder

Read this.... service manual #14 for the Gen2 drives

http://boatinfo.no/lib/mercruiser/manuals/mercruiser14.html#/560

Chapter 5B which that link is for covers the trim cylinders

 

[donaldm]

Re: how to rebuild trim cylinder

No the cylinder is still on the drive. will i need to bleed the system once its put back togather.

 

[Don S]

Re: how to rebuild trim cylinder

No the cylinder is still on the drive.

Then disconnect the lines.

will i need to bleed the system once its put back togather.

Yes, but you only need to run the drive up and down a few times to bleed it. Make sure the trim reservoir stays full.