1-S55
L4400 , WSM
ENGINE
Oil Clearance of Camshaft Journal
1. Measure the camshaft journal O.D. with an outside micrometer.
2. Measure the cylinder block bore I.D. for camshaft with a cylinder
gauge, and calculate the oil clearance.
3. If the oil clearance exceeds the allowable limit, replace the
camshaft.
W11335580
(3) Piston and Connecting Rod
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.
W11406200
Oil Clearance between Piston Pin and Small End Bushing
1. Measure the piston pin O.D. where it contacts the bushing with
an outside micrometer.
2. Measure the small end bushing I.D. with an inside micrometer,
and calculate the oil clearance.
3. If the oil clearance exceeds the allowable limit, replace the
bushing. If it still exceeds the allowable limit, replace the piston
pin.
W11420110
Oil clearance of
camshaft journal
Factory spec.
0.050 to 0.091 mm
0.00197 to 0.00358 in.
Allowable limit
0.15 mm
0.0059 in.
Camshaft journal O.D.
Factory spec.
39.934 to 39.950 mm
1.57221 to 1.57284 in.
Camshaft Bearing I.D.
Factory spec.
40.000 to 40.025 mm
1.57480 to 1.57579 in.
Piston pin bore I.D.
Factory spec.
25.000 to 25.013 mm
0.98425 to 0.98476 in.
Allowable limit
25.05 mm
0.9862 in.
Oil clearance between
piston pin and small end
bushing
Factory spec.
0.014 to 0.038 mm
0.00055 to 0.00150 in.
Allowable limit
0.15 mm
0.0059 in.
Piston pin O.D.
Factory spec.
25.002 to 25.011 mm
0.98433 to 0.98469 in.
Small end bushing I.D.
Factory spec.
25.025 to 25.040 mm
0.98524 to 0.98583 in.
KiSC issued 07, 2007 A
Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland
