Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 205Get this manual
WARNING
Scraper Seal Replacement
Memory Piston Cup may be expelled at high velocity when air pressure is applied Failure to place cylinder as shown below could result in personal injuryRemove components from end cap
BPlace cylinder as shownHold down on cylinder and inject air into shaft opening
b Oring (2)
cScraper seal
dWasher Retaining ring
REASSEMBLY IMPORTANT: Components must be clean for reasse mbly.Any debris in the system can cause the sy stem to malfunction NOTE: Refer to "Tilt Ram Com Jonent s" for proper ring sizes 1353