TOHATSU MFS 25D Service Manual page 181

11) Installation of Pulley and Timing Belt
Do not turn the drive pulley or the driven
pulley with the timing belt removed. Doing
so can make pistons and valves interfere
with each other, possibly resulting in
damages to these parts.
Install the key 1, the drive pulley 2, the belt guide
1.
3, and the nut 4 of the drive pulley. Tightening to the
specified torque is performed later.
• Degrease the drive pulley mounting area of the
crankshaft and the inner side of the drive pulley.
• Align the positions of the key and key groove of
the drive pulley to install the drive pulley.
Make sure that the " " mark a of the drive pulley is
2.
aligned with the " " mark b of the cylinder block.
This position is the compression top dead center
of the No. 1 cylinder.
Install the driven pulley 5 and check that the "
3.
of the driven pulley is aligned with the " " mark d of the
cylinder head.
Align the positions of the key and key groove of
the driven pulley to install the driven pulley.
4st 25/30 2022
CAUTION
c
5
5-41