Weichai America Corp.
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1)
Check camshaft for blur and bump damage, and make sure there is no rust, scratch and scrap
iron.
2)
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.
3)
Install sector plate, tightening torque of bolts should be 35±10Nm, seal up the bolts with
lacquer.
4)
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
required range after deburring, then the camshaft should be replaced.
5)
Rotate the crankshaft until 0 tick on timing gear is closest to camshaft, install camshaft timing
gear, make sure 0 tick of timing gear is engaged with 0 tick of crankshaft gear;
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