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Old 17 February 2005, 13:22   #1
Country: UK - England
Town: gainsborough
Boat name: misty diver
Make: carson
Length: 5m +
Engine: outboard
Join Date: Aug 2004
Posts: 1
mariner powertrim cylinder seals

I have a 100hp Mariner engine with powertrim on which the powertrim double acting hydraulic cylinder seals are leaking, I have had a look at this with regards to replacing the seals but have noticed a couple of things, one is that it looks as though it may be possible to strip the cylinder in situ if the engine can be lifted high enough to allow this to be done ???, the second thing is that if the cylinder needs to be removed in order to strip it then it is not immediately obvious how the cylinder is removed as there
appears to be what might be a tapered locking pin though the main mounting pin.
Therefore i have a couple of questions:
1. can anyone tell me if it is possible to replace the cylinder seals
without removing the cylinder ?
2. Assuming the answer to question 1 is no, can anyone tell me how to remove the cylinder ?
Many thanks in anticipation of any replies

mark20 is offline   Reply With Quote
Old 17 February 2005, 13:37   #2
Country: UK - England
Town: Paignton, Devon
Make: Chinook and Viking
Length: 7m +
Engine: 150 Etec + 125 Merc
Join Date: Jul 2003
Posts: 526
On some models you can (just) lift the engine higher than the ram then drop the engine onto its tilt support rests while you change the seals. I have done this to a 115 fourstoke Mariner and they all run pretty much the same trim system (depends on the age of course).

Brixham BSAC
tue is offline   Reply With Quote
Old 17 February 2005, 16:43   #3
Country: UK - England
Town: Herne Bay
Boat name: Rotary Rescue
Make: Pacific 22
Length: 6m +
Engine: Mermaid 160
MMSI: 235021725
Join Date: Nov 2003
Posts: 328

Yep you should be able to do it in situ.
Paul F is offline   Reply With Quote

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