Piston And Connecting Rod - Kubota L2800 Workshop Manual

L2800, L3400, WSM

(3) Piston and Connecting Rod

Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland
Oil Clearance between Idle Gear Shaft and Idle Gear Bushing
1. Measure the idle gear shaft O.D. with an outside micrometer.
2. Measure the idle gear bushing I.D. with an inside micrometer,
and calculate the oil clearance.
3. If the oil clearance exceeds the allowable limit, replace the
bushing.
4. If it still exceeds the allowable limit, replace the idle gear shaft.
Clearance between idle
gear shaft and idle gear
bushing
Idle gear shaft O.D.
Idle gear bushing I.D.
Replacing Idle Gear Bushing
(A) (When removing)
1. Press out the used idle gear bushing using an idle gear bushing
replacing tool.
(B) (When installing)
1. Clean a new idle gear bushing and idle gear bore, and apply
engine oil to them.
2. Press in a new bushing using an idle gear bushing replacing tool,
until it is flush with the end of the idle gear.
Piston Pin Bore I.D.
1. Measure the piston pin bore I.D. in both the horizontal and
vertical directions with a cylinder gauge.
2. If the measurement exceeds the allowable limit, replace the
piston.
Piston pin bore I.D.
1-S49
0.025 to 0.066 mm
Factory spec.
0.00098 to 0.00260 in.
0.1 mm
Allowable limit
0.0039 in.
37.959 to 37.975 mm
Factory spec.
1.49445 to 1.49508 in.
38.000 to 38.025 mm
Factory spec.
1.49606 to 1.49704 in.
25.000 to 25.013 mm
Factory spec.
0.98425 to 0.98476 in.
25.05 mm
Allowable limit
0.9862 in.
ENGINE
W1030933
W1031083
W1031817
KiSC issued 08, 2007 A