Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 447Get this manual
LEFT HAND NON-RATCHETING
6Install cross pin retaining spring onto sliding clutch as follows: IMPORTANT: DO NOT over-stretch retaining spring when installing onto sliding clutchaInstall spring(1 Spirally wrap spring into groove on sliding clutch(2 Position spring in groove so that straight end of spring is against the side of groove7Place gear housing in soft jaw vise with the driveshaft in vertical position8Coat cam pocket of cam follower with 2-4-C wTeflon Marine Lubricant (92-90018A12)9Place shift cam into cam pocket of cam follower with numbered side of cam facing up10Slide propeller shaft assembly into reverse gear assembly55095