ENGINE
STW34, STW37, STW40, WSM
1-S70
Camshaft Alignment
1. Support the camshaft with V blocks on the surface plate at both
end journals.
2. Set a dial indicator with its tip on the intermediate journal.
3. Measure the camshaft alignment.
4. If the measurement exceeds the allowable limit, replace the
camshaft.
9Y1211109ENS0110US0
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.
9Y1211109ENS0111US0
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.
9Y1211109ENS0112US0
Camshaft alignment Factory specification
0.01 mm
0.0004 in.
Cam height of intake
Factory specification
33.90 mm
1.335 in.
Allowable limit
33.85 mm
1.333 in.
Cam height of exhaust
Factory specification
33.90 mm
1.335 in.
Allowable limit
33.85 mm
1.333 in.
Oil clearance of
camshaft journal
Factory specification
0.050 to 0.091 mm
0.0020 to 0.0035 in.
Allowable limit
0.15 mm
0.0059 in.
Camshaft journal O.D. Factory specification
39.934 to 39.950 mm
1.5722 to 1.5728 in.
Cylinder block bore I.D. Factory specification
40.000 to 40.025 mm
1.5748 to 1.5757 in.
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