TM 5-4310-452-14
4-31. MUFFLER AND PIPE REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Equipment Conditions:
Materials/Parts:
• Engine off and cold.
• Two self-locking nuts
• Right door assembly open.
• Six lockwashers
Tools/Test Equipment:
• General mechanic's tool kit
a.
REMOVAL
1.
Remove 2 self-locking nuts (8) and washers (7) from U-bolt (2). Discard self-locking nuts.
2.
Remove 3 capscrews (12), lockwashers (11), and nuts (16). Discard lockwashers.
3.
Remove muffler (1) and pipe (4) assembly from support bracket (6) and exhaust manifold (13). Remove U-bolt (2)
from muffler.
4.
Remove gasket (15) from muffler (1) and exhaust manifold (1 3).
5.
Remove 4 nuts (5) from clamp (3). Remove clamp and pipe (4) from muffler (1).
6.
Remove air intake hose from intake manifold (see paragraph 4-15).
7.
Remove 3 capscrews (9) and lockwashers (10) from support bracket (6). Remove support bracket from engine (14).
Discard lockwashers.
b.
INSTALLATION
1.
Install clamp (3) on outlet of muffler (1). Insert pipe (4) in outlet of muffler. Install 4 nuts (5) finger tight on clamp.
2.
Install support bracket (6) on engine with 3 capscrews (9) and new lockwashers (10).
3.
Install air intake hose (see paragraph 4-15).
4.
Position gasket (15) on exhaust manifold (13).
5.
Install U-bolt (2) on muffler (1). Install muffler and pipe (4) assembly on support bracket (6) and exhaust manifold
(13).
6.
Install 3 capscrews (12), new lockwashers (11) and nuts (16). Tighten nuts to 34 lb.-ft. (46.1 N•m).
7.
Install U-bolt (2) on muffler (1) and support bracket (6) with 2 new self-locking nuts (8) and washers (7).
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