TOHATSU MD 30B2 Service Manual page 163

6. Inspection of Piston Pins
Measure piston pin outer diameter, and replace piston pin
if the outer diameter is over the limit.
Piston Pin Outer Diameter : Standard Value
17.00 mm (0.6693 in)
Measuring Locations :
D and D
1 3
D
2
7. Inspection of Piston Pin Clearance
Calculate piston pin clearance, and replace piston and
piston pin together if the clearance is over the limit.
Calculation of Piston Pin Clearance :
Piston Pin Hole Inner Diameter - Piston Pin
Outer Diameter
Standard Value :
– 0.007 - 0.003 mm (– 0.00028 - 0.00012 in)
Functional Limit :
0.020mm (0.00079 in)
Use the maximum values of piston pin hole
inner diameters and piston pin outer diameters
measured respectively.
TLD D30/40/50B2 2013
10 mm (0.394 in) from top end
and bottom end respectively
27.5 mm (1.083 in) from the end
10mm
D1
(0.394in)
D2
D3
10mm
(0.394in)
27.5mm
(1.083in)
5
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