Engine

SIZE OF CAMSHAFT JOURNAL AND
HOLE OF THE CYLINDER HEAD
Installation
To replace
the cam shaft, observe the shape of the
rear end of the cam shaft for right selection.
Before installation, apply the cam of the cam shaft
with hyperbolic gear oil or motor oil. The cam
shaft shall be assembled from the cylinder head in
a back-to-front order.
Apply some motor oil to the thrust spacer
of the
cam shaft and put the thrust spacer into the groove
of the cylinder head.
Screw two bolts into the threaded holes of the
thrust spacer and tighten them for a moment of
9—13Nm.
Check the axial clearance of the cam shaft, which
shall be within the specified range.
If adopting oversized hydraulic tappet (0.25), a
carefully selected cam shaft shall be used,
otherwise it will block the hydraulic tappet.
1. Standard size
2. Oversized (0.38)
Number of cam shaft
journal
Diameter of cam shaft journal
(unit: mm)
Diameter of the cam shaft hold of the
cylinder head (unit: mm)
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
Number of cam shaft
journal
Diameter of cam shaft journal
(unit: mm)
Diameter of the cam shaft hold of the
cylinder head (unit: mm)
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
A-27
PDF created with pdfFactory Pro trial version www.pdffactory.com