WEICHAI WD10 Service Manual - page 93
Service Manual for WD10 Diesel Engine
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(4) Check whether pushrod two ends are worn;
(5) Check whether valve tappet surface and undersurface are worn;
(6) Check whether valve tappet inner socket head is worn.
4544 Steps to Assemble Valve Tappet and Pushrod
(1) Check valve tappets and pushrods, replace them if necessary. Before installing the tappets, it
must be cleaned with compressed air, and check whether the oil channels are unblocked;
(2) Apply clean lubricating oil evenly on valve tappet fitting surfaces;
(3) Install valve tappets into engine block tappet-fitting holes
(4) After assembling cylinder covers (refer to assembly of cylinder cover for details), clean the
pushrods with compressed air and check whether the oil channels are unblocked;
(5) Apply clean lubricating oil on pushrod and ensure the round head is applied with sufficient oil.
(6) Install pushrod, put the pushrod into valve tappet through cylinder cover.
455 Disassembly, Inspection, Maintenance and Assembly of Valve
4551 Exploded View of Valve
Valve lock clamp
Valve inner spring
Valve
Valve cap
Lower valve spring seat
Valve outer spring
Upper valve spring seat
Fig. 4-48 Exploded view of valve