Kubota WG1605-G-E3 - Cylinder

ENGINE
WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, WSM
1-S56
(5) Cylinder
Cylinder Wear
1. Measure the I.D. of the cylinder at the six positions (see figure)
with a cylinder gauge to find the maximum and minimum I.D.'s.
2. Get the difference (Maximum wear) between the maximum and
the minimum I.D.'s.
9Y1210661ENS0076US0
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: 0.5 mm (0.02 in.)
Marking: 05
NOTE
• When the oversize cylinder is worn beyond the allowable
limit, replace the cylinder block with a new one.
9Y1210661ENS0077US0
Cylinder I.D.
Factory specification
79.000 to 79.019 mm
3.1103 to 3.1109 in
Allowable limit
79.15 mm
3.116 in.
(A) Top
(B) Middle
(C) Bottom (Skirt)
(a) Right-Angled to Piston Pin
(b) Piston Pin Direction
Cylinder liner I.D.
Factory specification
79.500 to 79.519 mm
3.1300 to 3.1306 in
Allowable limit
79.65 mm
3.136 in.
Finishing
Hone to 2.2 to 3.0 µmRz
(87 to 110 µin.Rz)
(1) Cylinder I.D. (Before Correction) (2) Cylinder I.D. (Oversize)
KiSC issued 05, 2014 A