Weichai America Corp.
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Fig. 4-2 Exploded view of camshaft
4.2.2 Steps to disassemble camshaft
Disassembling steps are contrary to assembling ones.
4.2.3 Steps to assemble camshaft
1.
After disassembling, examine camshaft and timing gear, and part with wear or large
parameter deviation should be repaired or replaced.
2.
Check camshaft for blur and bump damage, and make sure there is no rust, scratch and scrap
iron.
3.
Apply clean engine oil on camshaft hole and tappet hole inner surface. Install camshaft, do
not damage camshaft surface and engine block hole during the push-in process of camshaft
and the push-in strength should be equally, the end with thread should be on gear housing
side.
4.
Install sector plate, tightening torque of bolts should be 35±10Nm, seal up the bolts with
lacquer.
5.
Install gaskets, flange, washers and hexagon bolts on camshaft threaded end. Measure the
axial clearance of camshaft, which should be 0.1~0.29mm, if the clearance is too small, check
whether there is burr between camshaft and sector plate. If fail to adjust the clearance to
