Weichai America Corp.
Revision: August 2019 13
3.1.2 Intake and Exhaust System Disassembly Procedure
1.
Loosen the clamps on the air filter elbow, elbow pipe breather connection, and the mixer hose.
Remove the air filter elbow, elbow pipe, and mixer hose.
2.
Remove the hex bolts bolting the air filter to the air filter bracket. Remove the air filter
3.
Remove the socket head bolts bolting the throttle adapter to the mixer. Remove the mixer.
Note:
If the EPR has not been removed, remove the hex bolts bolting the EPR to the mixer.
4.
Remove the nut and bolt bolting the intake elbow to the throttle and throttle adapter. Remove
the throttle adapter and throttle together in one piece, then the throttle gasket.
Note:
After removal, hold the throttle and throttle adapter together with bolt holes still
aligned to prevent the O-ring from falling out.
5.
Remove the bolts bolting the intake elbow to the intake manifold. Remove the intake elbow
and intake elbow gasket.
6.
Remove the nuts bolting the exhaust elbow to the exhaust manifold. Remove the exhaust pipe
and gasket. See details in Exhuast Manifold Assembly and Disassembly (3.3).
CAUTION:
The exhaust elbow will be extremely hot after engine operation.
7.
Remove the bolts bolting the intake manifold to the engine block. Remove the intake manifold,
cover plates, and gaskets. See details in Intake Manifold Assembly and Disassembly (3.2).
3.1.3 Intake and Exhaust System Assembly Procedure
Reverse the Disassembly Procedure (3.1.2) to assemble the Intake and Exhaust System.
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