Mercury 40 Service Manual page 213

Timing Belt Installation
Timing Belt Installation Notes:
1. Align drive gear mark with cylinder mark.
b
a
a -
b -
2. Align the "1" mark on the driven gear with the cylinder head mark "n ".
90-828631R3 MARCH 1999
Protect the timing belt from water and oil.
Use care not to scratch the belt.
Do not use any metal device to help stretch the belt onto the driven gear.
Drive Gear Mark
Cylinder Mark
1
30033
30033
CYLINDER HEAD
Page 4A-17