1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 408Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 408

lntak ValvesAll Engines Exhaust ValveAll EnginesExcept 292) Exhaust Valves 292 F igure 11Relation of Valve and Seat Angles
14) Me ure from top of him or spring seat to top of valve spr in or valv prin shield (Figure 14) If this 'c eds specified
height, install valve spring seat shim approximatel 116" n.6mm} thick At no tim hould spring be bimmed to give an in tailed
height under minimum specified Figure 12 Valve Spring Installation Ins ta ll valve loc ks nd re lease compressor toolmak
in su re th at lock seat prope rl ill upper groove of va ve m3 In tall remaining vive s-1- Check each valve tem oil seal
by placing vacuum up or simi device ove end of valve stem and ar aga in cap Operate vac uu up and make sure tbat no air leaks