1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 407Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 407

grindi ng me as ure co en lri ci t, (Fi gure 10) NOTE: Valve seats should be concentric to wi thin .002" (OS lmm) total
thi ckness af te "ri nd inrep lace valve Re commenda ti ons of equipme nt manufactur for rda ing valve should be followed
to obtain best re ultsFi ure Insta lli ng Roc ker Arm Stud Figure Reaming Volve Guide 0 E: Only exlrem end of stem is hardened
to resiSl wearDo not t7rind end of stem exees vely VALVE SEATS 1 alves mu se aL pe rfec for th ngin to de iver the po" an
pe ri orman bui It in itood con tac be tween each valve and its seat in head is imper Liv to insure lh he in valve head ill
be ?roper!, rried away (coo led)f-k umraenda ti Nl of eq ui pment ma nufa turer for resealing val ( 'ea sho uld care full
followed ttain prop res ltsR e7a rdl ess ""hat type of eq ui me nl is user!hO 'cver, it is esse ntia thlve guid bo "be free
fr om rb irt 1After lea ning va lve fac and cyli nder head Ive seat of gr ndin particles, mak penc il ma rk bout 1 4" C6
.4mmapart aero Ive face, lace va lve in lind er head and give va lve-turn in each direc ti on wh Ie exe rting firm pres ure