75 888 merc trim problem.

[lurch67]

I had to replace the high pressure line to the manifold on the gimbal housing. . I bled the cylinders and lines per the service manual. It trims up great but goes down very slow. What could be the issue? I dont see any leaks. Bad pump, or is there still air in there somewhere?
thanks

 

[Bondo]

Re: 75 888 merc trim problem.

Ayuh,... Are the drive's pivots well greased,..?? Does it drop, when the rams are unhooked,..??

The down side of the pump is the low pressure side...
When the thrust of the drive is added, it goes down alot better...