CAC Gasoline Engine Maintenance And Servicing Manual
30
——Camshaft journal and cylinder head cam bearing
hole size：
(1) Standard size mm
(2). Over size (0.38) mm
mm
Installation：
——If camshaft needs to be replaced, check the shape of the
rear end of camshaft to select appropriate camshaft.
——Before installation，apply hypoid gear oil or engine oil
on camshaft cams, assembly camshaft from behind the
cylinder head forward.
——Apply engine oil on camshaft thrust spacer，insert thrust
washer into the groove in the cylinder head.
——Screw 2 bolts into thrust washer tapped holes,
tightening torque is 9—13Nm.
——Check camshaft end play，end play should be as
specified.
——When the hydraulic lifting rod of oversize 0.25 is
applied, camshaft must be selected, or the hydraulic lifting
rod may be stuck.
Camshaft
journal number
Camshaft journal
diameter
Cylinder head
bearing hole
diameter
1 44.74—44.76 44.783—44.808
2 44.99—45.01 45.033—45.058
3 45.24—45.26 45.283—45.308
4 45.49—45.51 45.533—45.558
5 45.74—45.76 45.783—45.808
Camshaft journal
number
Camshaft journal
diameter
Cylinder head
bearing hole
diameter
1 45.12—45.14 45.163—45.188
2 45.37—45.39 45.413—45.438
3 45.62—45.64 45.663—45.688
4 45.87—45.89 45.913—45.938
5 46.12—46.14 45.163—45.188
Tightening torque
Thrust
washer
Fig.35
Fig. 36
Fig. 37
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