3145, 3150 & 3160 INDUSTRIAL ENGINES Caterpillar


Air Inlet Manifold

Usage:

Remove Air Inlet Manifold

1. Remove the fuel injection lines. Plug or cap all lines or openings.

2. Disconnect the hose (3) from the crankcase ventilator valve assembly.

3. Remove air inlet manifold mounting bolts (2). Remove the air inlet manifold (1).


AIR INLET MANIFOLD
1. Air inlet manifold. 2. Mounting bolts (eight, four each side). 3. Crankcase ventilator hose.

4. Tape inlet ports in cylinder heads to prevent foreign material from entering engine.


INLET PORT TAPED

Install Air Inlet Manifold

1. Remove tape from inlet ports in cylinder heads.

2. Clean the air inlet manifold gasket mounting surfaces. Install the gaskets.

3. Install the air inlet manifold and mounting bolts.

4. Tighten bolts (3) and (4) to 15 ± 5 lb. ft. (2.0 ± 0.7 mkg). Then tighten all bolts by number sequence to 32 ± 5 lb. ft. (4.4 ± 0.7 mkg).


TIGHTENING SEQUENCE

5. Connect the hose to the crankcase ventilator valve assembly.

6. Remove caps or plugs from all lines or openings. Install the fuel injection lines. To tighten refer to the topic, Install Fuel Injection Lines.

Caterpillar Information System:

3145, 3150 & 3160 INDUSTRIAL ENGINES Fuel Injection Pump Housing
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3145, 3150 & 3160 INDUSTRIAL ENGINES Fuel Injection Nozzles
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3145, 3150 & 3160 INDUSTRIAL ENGINES Fuel Filter Base
3145, 3150 & 3160 INDUSTRIAL ENGINES Fuel Injection Lines
3145, 3150 & 3160 INDUSTRIAL ENGINES Exhaust Manifolds
3145, 3150 & 3160 INDUSTRIAL ENGINES Crankcase Ventilation Valve
3145, 3150 & 3160 INDUSTRIAL ENGINES Valve Covers
3145, 3150 & 3160 INDUSTRIAL ENGINES Rocker Arm Shaft Assembly
3145, 3150 & 3160 INDUSTRIAL ENGINES Cylinder Heads
3145, 3150 & 3160 INDUSTRIAL ENGINES Pistons
3145, 3150 & 3160 INDUSTRIAL ENGINES Crankshaft Pulley
3145, 3150 & 3160 INDUSTRIAL ENGINES Crankshaft Front Oil Seal
3145, 3150 & 3160 INDUSTRIAL ENGINES Timing Gear Cover
3145, 3150 & 3160 INDUSTRIAL ENGINES Camshaft Gears (Engines With Fuel Injection Pump Camshaft Mounted Timing Advance)
3145, 3150 & 3160 INDUSTRIAL ENGINES Camshaft Gears (Earlier Engines Without Timing Advance)
3145, 3150 & 3160 INDUSTRIAL ENGINES Camshaft Gears (Engines with Engine Camshaft Mounted Timing Advance and Taper Drive for Fuel Injection Pump)
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