WEICHAI WD10 Service Manual - page 116
Service Manual for WD10 Diesel Engine
106
(10) Remove engine oil cooler bypass valve.
4913 Steps to Assemble Lubricating System
Assembling steps are contrary to disassembling ones.
492 Disassembly, Inspection, Maintenance and Assembly of Engine Oil
Pump
4921 Exploded View of Engine Oil Pump
Engine oil pump
Engine oil pump gasket
Hexagon flange bearing
surface toothed bolt
Hexagon flange bearing
surface toothed bolt
Fig. 4-66 Exploded view of engine oil pump
4922 Steps to Disassemble Engine Oil Pump
Remove the two hexagon flange bearing surface toothed bolts, take down engine oil pump and
gasket, as shown in Fig. 4-66.
4923 Inspection and Maintenance of Engine Oil Pump
(1) Check the engine oil pump for crack damage, check whether its inner cavity is smooth, replace
it if necessary.
(2) Check engine oil pump gasket for oil leakage, replace the gasket if necessary.
4924 Steps to Assemble Engine Oil Pump
(1) Check the pump and pump gasket before assembling, make sure there is no manufacturing
defect and damage.
(2) Clean up the fitting surface between oil pump and crankcase.
(3) Install engine oil pump gasket.