TOHATSU MFS 8B Service Manual page 148

1. Clean connecting rod.
2. Place cylinder block upside down on the work bench. Install
piston to connecting rod
cylinder block.
Piston rings are not to be attached to piston.
3. Install crankshaft on the cylinder block.
4. Place plasti-gauge
crankshaft.
Do not place plasti-gauge
crank pin
5. Install connecting rod and cap
· Be sure that individual cap is installed to their
original connecting rod.
· Check that "UP" mark
at crankshaft flywheel side
6. Tighten connecting rod bolts in two steps to specified torque.
Do not move connecting rod and crankshaft until
oil clearance measurement is completed.
Connecting Rod Bolts :
First Tightening Torque : 6 N · m (4 lb · ft) [0.6 kgf · m]
Second Tightening Torque : 12 N · m (9 lb · ft) [1.2 kgf · m]
7. Remove connecting rod cap and measure width of crushed
plasti-gauge on each crank pin. Replace connecting rod
or crankshaft if the width is over specified value.
Crank Pin Oil Clearance :
0.015 - 0.041 mm (0.00059 - 0.00161 in)
Functional Limit :
0.060 mm (0.00236 in)
5-44
, and install the assembly to
on each crank pin
on the oil hole
.
to crank pin
of connecting rod is
.
parallel to
of
.
UP
UP
4st 8/9.8 2016