1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 461Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 461

VALVE MECHANISM REMOVAL l Remov roc ke rm cove rs as ouLlined2Rem ove ro ck arm nuts rocker arm ballsrocker arms nd push
409) Wi th val vc cover remo ved adj val ve wh lift 1S base irel of camshaft lobe as followsCrank enf' ine with tarter or
turn over 1n normal ir ion rota ion unt il mark on torsiona 'i damper lines up wilh ce nter "0" mark on timing tab fa te
ned crankc front cover, and engine is in No.1 firi posi tionThis ma be determin by placing finge rs on 101 valve as ma rk
on damper comes nea "0" mark on timing ma rk valves move as mark comes up timin tab engine is in 0 position and hou ld be
turned over on more time to reach :'io posi ti on bWith cngin in firin positi on as term in ed aboveth' follo'ing valv may
be adjustedLeft and (Standard) Rotat ion Engines Exhaust1-3-4-8 Inta e th can be adju ted by ti tening adjustment nul an
additional pla ce plunger in cen ter of its lrav ![lio other adj Ils ntis re qu ireddCrank engin one re 'o lution until pointer
"0" mark and torsional damper mark are again in alignmentTh is is firin posil ionWith engine in this position, the fo ll