TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Remove 1. Remove four self-locking nuts (A), flat washers, and cap screws attaching exhaust pipe tu exhaust manifold for cylinder Nos. 4R, 5R, and 6R. Remove pipe. Remove and discard exhaust manifold gasket. 2. Remove 12 self-locking nuts (B) and flat washers attaching exhaust manifold to cylinder Nos. 4R, 5R, and 6R. Remove manifold. Remove and discard three manifold gaskets. 3. Remove four self-locking nuts (C), flat washers, and cap screws attaching exhaust pipe to exhaust manifold for cylinder Nos. 4L, 5L, and 6L. Remove pipe. Remove and discard exhaust manifold gasket. 4. Remove 12 self-locking nuts (D) and flat washers attaching exhaust manifold to cylinder Nos. 4L, 5L, and 6L. Remove manifold. Remove and discard three manifold gaskets. Install 1. Position three new manifold gaskets on cylinder Nos. 4L, 5 L, and 6 L. Position exhaust manifold on cylin- ders. Install 12 self-locking nuts (D) and flat washers securing exhaust manifold to cylinders. 2. Position a new exhaust manifold gasket on exhaust manifold. Position exhaust pipe to manifold and install four self-locking nuts (C), flat washers, and bolts securing pipe to manifold. 3. Position three new manifold gaskets on cylinder Nos. 4R, 5R, and 6R. Position exhaust manifold on cylinders. Install 12 self-locking nuts (B) and flat washers securing exhaust manifold to cylinders. 4. Position a new exhaust manifold gasket on exhaust manifold. Position exhaust pipe on manifold and install four self-locking nuts (A), flat washers, and bolts securing pipe to manifold. Figure 5-78. Removing or installing exhaust manifolds and exhaust pipes-cylinder Nos. 4R, 5R, and 6R and cylinder Nos. 4L, 5L, and 6L. 5-47