Here’s a diagram that shows typical torque sequence and a torque specification chart for a number of OMC motors. When torquing the head bolts, go 1/2 torque value on the first pass, then 3/4 value on a 2nd pass and full torque on the 3rd pass.
Attachments:
Bob
1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp
“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."