1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 473Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 473

OIL PUMP The il pum cons ists of :2 gears and press ure regul ato l' va lve endos in 2-p iete hou in Oil pump is dr iven
Va lve Pressure Reguleter Spring Washer Retaining Pin Screws CA 'TION00 nol disturb pickup This is ervi an assembl y ere
on pip 4Ch loose drive gea haft in pU!l1p bun:,' 5Insp lin id of pump co ve for wear th woul permi oi to leak past ds of
gea rs 6In peet pickup scre en nd pipe assembly for damage to screenpipe or rel ief grommet- Check press ure regu la or val
ve for fit ,'lOT Pump gear and body are not eruiced eparaul yI pump ge ar or body are dama ge or worn, re placemen of nlire
oil pump assembly is nece REASSEMBL Y 1If pickup sc reen and pipe ass wa remo-ed on :83 27"SO or 409 engines, it should be
replaced with rLLoss pre -fit con di tio ou ld re ult in ir lea an of oi pressure:Vlount pump in soft -jawed eapp ly seale
to nd ipe nduing tool J-8 69tap pipe in lace wi t.h plastic hamm r(F ig ure 4) The 427 and 482 pi kup screen cannot be repl
ce d F igure 2Oil Pump283, 327, 350 an 409 Shaft Exten sion Pump Body Dri ve Ge ar and Shelt Id ler Ge er Pump Cover 10 Pressure