3116 and 3126 Truck Engines Air Compressor Drive Gear – Remove and Install

Start By:

A.Remove the air compressor.
 Removal Procedure

1.Temporarily install air compressor (1) with bolts (2) . Remove cover plate (3)


2.Loosen nut (2) . Remove bolts (2) and remove air compressor (1) .


3.Remove nut (4) .


4.Use Tooling (A) in order to remove gear (5) .

Installation Procedure


1.Clean the inside diameter of gear (5) and the shaft. Lube the washer and the shaft thread with engine oil. Position drive gear (5) on the air compressor, and install the washer and nut (4) . Tighten nut (4) hand tight.


2.Install air compressor (1) and bolts (2) . Keep the engine from turning and tighten nut (4) to a torque of 170 ± 15 N·m (125 ± 11 lb ft)


3.Install Tooling (B) onto nut (4) and tap one time a hammer.


4.Keep the engine from turning and tighten nut (4) to a torque of170 ± 15 N·m (125 ± 11 lb ft)


5.Install cover plate (3) .
End By: Install the air compressor.

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