Kubota M5040 Workshop Manual page 186

M5040, M6040, M7040, WSM
Cam Height
1. Measure the height of the cam at its highest point with an outside
micrometer.
2. If the measurement is less than the allowable limit, replace the
camshaft.
Factory
spec.
Intake and exhaust cam
height
Allowable
limit
(1) Camshaft
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 an inside
micrometer.
3. If the clearance exceeds the allowable limit, replace the
camshaft.
Factory spec.
Oil clearance of
camshaft journal
Allowable limit
Camshaft journal 1 O.D. Factory spec.
Camshaft block bore 1
Factory spec.
I.D.
Camshaft journal 2 O.D. Factory spec.
Camshaft block bore 2
Factory spec.
I.D.
(1) Camshaft Journal 1
Replacing Camshaft Cover (If necessary)
1. Remove the used camshaft cover and clean the hole.
2. Install the new camshaft cover (1) until bumping using camshaft
cover replacing tool. (Refer to "8. SPECIAL TOOLS" at "G.
GENERAL" section.)
(1) Camshaft Cover
1-S60
ENGINE
Intake 37.50 mm
valve 1.4764 in.
Exhaust 37.90 mm
valve 1.4921 in.
Intake 37.00 mm
valve 1.4567 in.
Exhaust 37.40 mm
valve 1.4724 in.
(2) Cam
W1064551
0.050 to 0.091 mm
0.0020 to 0.0036 in.
0.15 mm
0.0059 in.
34.034 to 34.050 mm
1.3399 to 1.3406 in.
35.000 to 35.025 mm
1.3780 to 1.3789 in.
43.934 to 43.950 mm
1.7297 to 1.7303 in.
44.000 to 44.025 mm
1.7323 to 1.7333 in.
(2) Camshaft Journal 2
W1064798
W1048526
KiSC issued 06, 2008 A