Mercury Mariner Service Manual 6, 8, 9.9 210CC Sailpower, Page 81Get this manual
cInstall upper locating washer (a) dSlide piston onto connecting rodcentering piston pin bore over sleeveeSlide piston tool up thru piston pin bore .and remove sleeve
Service Tip
.91-13663A 1
If the tip of awl can be inserted between the needle bearings, one or more needle is missing and must be replaced18897