WEICHAI & PSI SERVICE MANUALS AVAILABLE ONLINE AT FLYPARTSGUY.COM Weichai America Corp. Fig. 3-4 Exploded view of exhaust manifold 3.3.2 Exhaust Manifold Disassembly Procedure CAUTION: All parts of the exhaust manifold and exhaust elbow will be extremely hot after engine operation. 1. Remove the heat shield bolts and the heat shield. 2. Untie the exhaust elbow insulation ties. Remove the exhaust elbow insulation with the ties. 3. Loosen and remove the oxygen sensor. 4. Remove the nuts bolting the exhaust elbow to the exhaust manifold. Remove the exhaust elbow and gasket. 5. Remove the nuts bolting the exhaust manifold to the engine block. Remove the exhaust manifold.
3.3.3 Exhaust Manifold Assembly Procedure Reverse the Disassembly Procedure (3.3.2) to assemble the exhaust pipe. Note the following during assembly: 1. Apply molybdenum disulfide to exhaust manifold bolts before use. 2. Torque the exhaust manifold attachment bolts to the recommended tightening torque of 65~80Nm. Revision: August 2019 15 GET YOUR WEICHAI & AFTERMARKET SERVICE PARTS AT FLYPARTSGUY.COM