1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 234Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 234

BREAKER POINT IGNITION TIMING TI MING MARK LOCATION The ti mi ng marks nd th eir ocations re illustrated Figures] -thru-71n
until timin ma rk on balan or pulley line up with mar on tab spe ified inSp ci fi ca tions" eninn 8, clamp and re he loca
tion of timing mdrk top engi ne and remove iming light Figure 1Early Timing Tab on110" Late timing over pulley production]0"
and140" eng.nes have tab located on left (port) side of timing gear and timing notch on inner edge of cranksha{t or harmonic
bal ancer(Figure 3) Figure 2Early Timing Tab on "140" Figure 5Timin Line onSS8215-225II- TR and 2SSU-TR" Engines TIMING MERCRUISER
60, SO,and 90 ENGIN NOT RUNNING LLocate01 piston in firing position by either of :2 methods des ri bed be aRemov No .1 spark
plug anit finger on lug hoi, rank en ine un il compress ion is felt ill cyli nd Cont inue cra ki until mark on llm ln cl:ain
cover ines up wi timin mark on lternator fl?wheel, orRemo ' rocker CO 'er nd rank en Ine unt il01 in ta ke valve cl osesthen
co nt in rank lowl un il mark on timing chai co ver lines up tim ing mark on al terna or ly wheel( Figure ) ELSCTRICAL SYSTEM38-25