3145, 3150 & 3160 INDUSTRIAL ENGINES Caterpillar


Exhaust Manifolds

Usage:

Remove Exhaust Manifolds

1. Remove exhaust pipe-to-manifold bolts (1).


EXHAUST MANIFOLD
1. Exhaust pipe-to-manifold bolts (eight, four each side). 2. Bolts (eight) and locks (four) each side. 3. Exhaust manifold (two, one each side).

2. Remove exhaust manifold retaining bolts (2) and locks.

3. Remove the exhaust manifold (3).

Install Exhaust Manifold

1. Clean the exhaust manifold gasket mounting surfaces.

2. Position the gasket and exhaust manifold on the engine and install the retaining bolts with locks. Tighten retaining bolts to 32 ± 5 lb. ft. (4.4 ± 0.7 mkg). Bend tabs on locks over flats of retaining bolt heads.

NOTE: Lock tabs must be bent over flats of retaining bolt heads. If necessary to align flats, tighten bolts a maximum additional turn of 30°. Do not loosen bolts to align flats.

3. Install the exhaust pipe-to-manifold bolts. Tighten the exhaust pipe-to-manifold bolts to 32 ± 5 lb. ft. (4.4 ± 0.7 mkg).

Caterpillar Information System:

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