WEICHAI & PSI SERVICE MANUALS AVAILABLE ONLINE AT FLYPARTSGUY.COM Weichai America Corp. 2. Ensure that the oil channels of valve tappet and pushrod are smooth. 3. Ensure that the pushrod is not crooked. Check wear condition on the outside surface. 4. Ensure that the two ends of the pushrod are not worn. 5. Ensure that the valve tappet surface and undersurface are not worn. 6. Ensure that the valve tappet inner socket head is not worn. 9.5 Cylinder Heads Assembly and Disassembly 9.5.1 Cylinder Heads Exploded View Fig. 9-5 Exploded view of cylinder heads 9.5.2 Cylinder Heads Disassembly Procedure 1. Loosen the cylinder head bolts and remove them. 2.
Pull the cylinder head up vertically to take it down. If the cylinder head gasket is attached on the removed cylinder head, remove it and place it back on engine block. Put the removed cylinder head on cardboard to prevent damage to the upper surface of the combustion chamber and other sealing surfaces. If more than one cylinder head needs to be disassembled, mark the cylinder number on the head for reference. Revision: August 2019 41 GET YOUR WEICHAI & AFTERMARKET SERVICE PARTS AT FLYPARTSGUY.COM