1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 504Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 504

CYLINDER HEAD If replacing linder adfolio' procedur under 'linder Head Oisa sembi), nd : emblv, following, and transfer all
3D) Re movepring re tain locL and releasc "pring3Remove sprin retainerpring stem sea and va lve Di ca rd 'a lve tem al Id
nt if)' al valve parts 4Cleaninspec nd repair cy lin der eaas quiredransle all sable parts to new cy linder hea d Rvnouf
Gouge CL EA NING L Wit valves installed to protec val seats move pos its from combustion chamband 'alve heads with scraper
nd wir brushBe arefu not to damage cy inder ad gas urfa ce 2After removing 'alve clean vah' uide bar wi alve guid cleaning
oolLse clean ing olven to move dirtgr ase and th eposit Figure 5Checking Valve Seat Runout VALVE INSPECTION 3C lea ll bo
lt ies and remov ll de po il.s from valve with fin brus or buffing wh I INSPECTION Check cylinde head for cracks an in pect
gaske surface for burrs and ic ks Rep lace head if cracked CYLINDER HEA FLATNESS Then cylind head is moved becau of gas et
leaks, check cy linder ea for fl gaske llrf ce according to spe if ications(F igure 4) If necessary to ref inish cy inder