Merc power trim questions

[JDBurke]

I have an '86 115 with the 3 ram PTT. It lifts fine but then when sitting "bleeds" off. I searched the achieves and found a couple of posts placing the culprit as check valves. Looking in the parts diagrams the only check valves I found appeared to be located in the piston assembly of the center ram. Is this actually where the pesky little check valves are located? And, if I'm going to tear this thing apart to rehab the check valves, is there anything else I should consider doing while I'm in there.

Thanks in advance. This forum is loaded with great info.

John

 

[wrench 3]

The only information I could find on the three ram PTT was in the '87 repair manual but maybe it will help. http://boatinfo.no/lib/mercury/manuals/70-75-80-90-100-115.html#/276 take a look at page 277

 

[Barnacle_Bill]

Before you tear it apart make sure the emergency release valve isn't loose.

 

[jimmbo]

Does it bleed down all the way, or just down to the highest trim position?

 

[JDBurke]

Thanks for the responses. I'll check the emergency release valve, (I don't remember seeing it in the parts diagrams) and it does bleed all the way down.

Thanks, john