WEICHAI WD10 - Disassembly, Inspection, Maintenance and Assembly of Camshaft

Service Manual for WD10 Diesel Engine
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(3) Install valve tappet and pushrod, refer to assembly of valve tappet and pushrod for details;
(4) Assemble intake and exhaust valves, refer to assembly of valves for details;
(5) Install rocker and rocker shaft, refer to assembly of rocker and rocker shaft for details;
452 Disassembly, Inspection, Maintenance and Assembly of Camshaft
4521 Exploded View of Camshaft
Locating pin
Camshaft timing gear
Hexagon screw
Thrust plate
Camshaft
Camshaft bearingshell
Hexagon bolt
Thrust plate hexagon bolt
Fig. 4-42 Exploded view of camshaft
4522 Steps to Disassemble Camshaft
(1) Rotate camshaft to check whether camshaft and timing gear are flexible and smooth;
(2) Measure camshaft axial movement with a dial gauge, compare it with required range
0.1~0.4mm;
(3) Check timing gear backlash;
(4) Rotate crankshaft until camshaft timing gear is in cylinder 1 TDC. Remove the hexagon bolts
of camshaft timing gear and take down the gear and locating pins;
(5) Remove the hexagon bolts of camshaft thrust plate, take down the plate;
(6) Take down camshaft.
4523 Inspection and Maintenance of Camshaft
(1) Check whether there is wear trace on cam working surface, check main journal for seizure and