Service Manual for WP6 Diesel Engine
65
352 Disassembly, Inspection, Maintenance and Assembly of Camshaft
3521 Exploded View of Camshaft
Engine
block
Fuel injection pump driven gear
Camshaft timing gear
Hexagon socket cap screw
Flange
Sector plate
Hexagon flange bearing surface toothed bolt
Hexagon flange bearing surface toothed bolt
Camshaft
Fig. 3-35 Exploded view of camshaft
3522 Steps to Disassemble Camshaft
Disassembling steps are contrary to assembling ones.
3523 Inspection and Maintenance of Camshaft
(1) Check whether there is wear trace on cam face that contacting tappet, check main journal for
seizure and abrasion.
(2) Check whether timing gear and hexagon bolts are distorted, check whether there is
misengagement between camshaft timing gear and fuel injection pump driven gear, check
whether there is severe wear on gear tooth surface.
3524 Steps to Assemble Camshaft
After disassembling, examine camshaft, timing gear and fuel injection pump driven gear, and part
with wear or large parameter deviation should be repaired or replaced.
(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 the tappet, refer
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