Mercury 40 Service Manual page 239

3. Torque center bolts in sequence and in two steps, than torque the Cylinder Head and
carburetor flange bolts.
8
4
1
5
9
4. Install timing belt. Refer to Section 4 Part B.
5. Adjust valves. Refer to Section 4 Part A.
a -
90-828631R3 MARCH 1999
5
3
1
2
4
Cylinder Head Bolt Torque
Center Bolts Qty. 10 (Larger Dia. M9)
1st: 17 lb-ft (23 Nm)
2nd: 34.7 lb-ft (47 Nm)
Cyl. Head Flange Bolts Qty. 5 (Smaller Dia. M6)
1st: 53 lb-in. (6 Nm)
2nd: 106 lb-in. (12 Nm)
Carburetor Flange Bolts Qty. 8 (Smaller Dia. M6)
75 lb-in. (8.5 Nm)
a
3
Timing Belt
7
8
3
3
4
1
2
2
5
6
7
6
10
53740
30033
CYLINDER HEAD
Page 4A-43