S-71
SM-E3B SERIES WSM
DIESEL ENGINE
Correcting Cylinder (Oversize)
1. When the cylinder is worn beyond the allowable limit, bore and
hone it to the specified dimension.
2. Replace the piston and piston rings with oversize ones.
Oversize : 0.25 mm (0.0098 in.)
Marking : 025
• When the oversize cylinder is worn beyond the allowable
limit, replace the cylinder block with a new one.
W10367470
(6) Oil Pump
Rotor Lobe Clearance
1. Measure the clearance between lobes of the inner rotor and the
outer rotor with a thickness gauge.
2. If the clearance exceeds the factory specifications, replace the oil
pump rotor assembly.
W10378950
Clearance between Outer Rotor and Pump Body
1. Measure the clearance between the outer rotor and the pump
body with a thickness gauge.
2. If the clearance exceeds the factory specifications, replace the oil
pump rotor assembly.
W10381420
Cylinder liner I.D.
Factory
spec.
Z482-E3B
D722-E3B
D782-E3B
67.250 to 67.269 mm
2.6477 to 2.6483 in.
Z602-E3B
D902-E3B
72.250 to 72.269 mm
2.8445 to 2.8452 in.
Allowable
limit
Z482-E3B
D722-E3B
D782-E3B
67.400 mm
2.6535 in.
Z602-E3B
D902-E3B
72.400 mm
2.8504 in.
Finishing
Hone to 2.2 to 3.0 μm Rz
(87 to 110 μin. Rz)
∇∇∇.
(1) Cylinder I.D. (Before Correction) (2) Cylinder I.D. [Oversize]
Rotor lobe clearance Factory spec.
0.030 to 0.14 mm
0.0012 to 0.0055 in.
Clearance between
outer rotor and pump
body
Factory spec.
0.070 to 0.15 mm
0.0028 to 0.0059 in.
