WEICHAI & PSI SERVICE MANUALS AVAILABLE ONLINE AT FLYPARTSGUY.COM Weichai America Corp. 7.4 Water Pump Assembly and Disassembly 7.4.1 Water Pump Exploded View Fig. 7-4 Exploded view of water pump 7.4.2 Water Pump Disassembly Procedure 1. Remove the water pump pulley. 2. Remove thermostat connecting hose and clamps. 3. Remove the hexagon bolts on the pump. 4. Remove water pump, gasket and middle cushion block. 7.4.3 Water Pump Assembly Procedure Reverse the Disassembly Procedure (7.4.2) to assemble the Water Pump. 7.4.4 Water Pump Inspection and Maintenance 1. Check the water pump gasket for any cracks or damage. Replace it if necessary. 2.
Check the bolts and studs for any damage to the threads. Replace any if necessary. 3. Check water pump and middle cushion block for cracks. Replace them if necessary. Revision: August 2019 29 GET YOUR WEICHAI & AFTERMARKET SERVICE PARTS AT FLYPARTSGUY.COM