TOHATSU MFS 4 Service Manual

5-32
Power Unit
4st 4/5/6 2011
3. Install connecting rod and tighten bolts to specified torque.
22
11
a
26) Inspection of Connecting Rod Big
End Inner Diameter
1. Wipe off oil from crankshaft and connecting rod big end
bearing.
2. Set plastic gauge 1 on the crank pin.
a
24) Inspection of Piston Pin
1. Measure piston pin outer diameter. Replace if it is less
than specified value.
Piston Pin Outer Diameter : Standard value
16.00 mm (0.6299in)
Functional Limit :
15.97 mm (0.6287 in)
2. Measure piston pin boss inner diameter a.
3. Obtain clearance between piston pin and pin boss.
Replace piston pin or piston if the clearance is over
specified value.
Clearance between Piston Pin and Pin Hole :
0.002 - 0.012 mm (0.00008 - 0.00047 in)
Functional Limit :
0.040 mm (0.00157 in)
25) Inspection Connecting Rod Small
End Inner Diameter
1. Measure connecting rod small end inner diameter a.
Replace if it is over specified value.
Connecting Rod Small End Inner Diameter a :
Standard value
14.01 mm (0.5516 in)
Functional Limit :
14.04 mm (0.5528 in)
Connecting Rod Bolts 2 :
1st
tightening torque : 6 N · m (4 lb · ft) [0.6 kgf · m]
2nd tightening torque : 12 N · m (7 lb · ft) [1.2 kgf · m]
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TOHATSU MFS 4 Specifications

General

Brand	TOHATSU
Model	MFS 4
Category	Outboard Motor
Language	English