WEICHAI & PSI SERVICE MANUALS AVAILABLE ONLINE AT FLYPARTSGUY.COM Weichai America Corp. 3.2 Intake Manifold Assembly and Disassembly 3.2.1 Intake Manifold Exploded View Fig. 3-3 Exploded view of intake manifold 3.2.2 Intake Manifold Disassembly Procedure 1. Remove the nuts bolting the intake manifold to the engine block. Remove the intake manifold and gaskets. 2. Remove the bolts bolting the cover plates to the intake manifold. Remove the cover plates and the gaskets. 3.2.3 Intake Manifold Assembly Reverse the Disassembly Procedure (3.2.2) to assemble the intake pipe. Recommended tightening torque for the nuts bolting the intake pipe to the engine block is 23Nm.
3.2.4 Intake Manifold Inspection and Maintenance 1. Check the intake manifold for weld defects. Replace the pipe if necessary. 2. Check the intake pipe gaskets for damage and tears. Replace the gaskets if necessary. 3.3 Exhaust Manifold Assembly and Disassembly 3.3.1 Exhaust Manifold Exploded View Revision: August 2019 14 GET YOUR WEICHAI & AFTERMARKET SERVICE PARTS AT FLYPARTSGUY.COM