3126 Truck Engine Caterpillar

Illustration 1	g00489505
Typical Example Of A Three-Piece Exhaust Manifold

Use the following procedure to assemble the three-piece exhaust manifold to the cylinder block.

1. Coat the inside diameter of the female ends of the manifold with engine oil.

2. Apply a thin coat of 2P-2333 High Temperature Sealer to the outside diameter of the male ends. Do not apply sealer at the tip of the male ends. Remove excess sealer from the assembled joints.

3. Apply 5P-3931 Anti-Seize Compound to the threads of bolts ( 1 through 12 ).

4. Tighten bolts ( 1 through 12 ) in a numerical sequence.

   Tighten the bolts to the following torque. ... 4 ± 1 N·m (35 ± 9 lb in)

5. Tighten bolts ( 1 through 12 ) in a numerical sequence.

   Tighten the bolts to the following torque. ... 45 ± 5 N·m (33 ± 4 lb ft)

6. Bend tabs (13) over the flats of the bolt heads. This will lock the bolts in position.

7. Tighten studs (14) to a torque of 35 ± 5 N·m (26 ± 4 lb ft) .

Illustration 2	g00441404
Typical Example Of A One-Piece Exhaust Manifold

To assemble the one-piece exhaust manifold to the cylinder block, use step 3 through step 7 of the preceding procedure.