Cylinder - Kubota WG1605-G-E3 Workshop Manual

WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, WSM

(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.
Factory specification
Cylinder I.D.
Allowable limit
(A) Top
(B) Middle
(C) Bottom (Skirt)
Correcting Cylinder (Oversize)
1. When the cylinder is worn beyond the allowable limit, bore and
hone it to the specified dimension.
Factory specification
Cylinder liner I.D.
Allowable limit
Hone to 2.2 to 3.0 µmRz
Finishing
(87 to 110 µin.Rz)
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.
(1) Cylinder I.D. (Before Correction)
1-S56
ENGINE
79.000 to 79.019 mm
3.1103 to 3.1109 in
79.15 mm
3.116 in.
(a) Right-Angled to Piston Pin
(b) Piston Pin Direction
9Y1210661ENS0076US0
79.500 to 79.519 mm
3.1300 to 3.1306 in
79.65 mm
3.136 in.
(2) Cylinder I.D. (Oversize)
9Y1210661ENS0077US0
KiSC issued 01, 2012 A