Kubota D650-B Handbuch Seite 166

0076P054
TIMING GEARS, CAMSHAFT
. , Checking Oil Clearance of Camshaft
1) Measure the camshaft bearing in the crankcase with an
inside micrometer.
2) Measure the camshaft journal with an outside micrometer.
Calculate the clearance.
3) If the clearance exceeds the allowable limit, replace
the camshaft.
Reference value
Allowable limit
Camshaft bearing
journaIO.D.
Camshaft bearing
I.D.
0.050 to 0.091 mm
0.0020 to 0.0036 in.
0.15 mm
0.0059 in.
32.934 to 32.950 mm
1.2966
to
1.2972 in.
33.000
to
33.025 mm
1.2992
to
1.3002 in.
8
Checking Camshaft Alignment
1) Gently put the camshaft on V blocks.
2) Set a dial gauge to the journal.
3) While slowly rotating the camshaft, read the dial gauge.
The camshaft flexure is half of the reading.
4) If the measurement exceeds the allowable limit, replace
the camshaft.
170