Problem #12

Excessive Oil in Air System

POSSIBLE CAUSES
Restricted Intake Hose between Air Compressor Intake and Engine Intake Manifold.
Plugged Air Strainer (filter)

Flooding Plugged drain to engine from Air Compressor

Bad Piston and/or Rings in Air Compressor
Step #1

Check hose or filter to Air Compressor. If plugged, repair or replace as necessary.
If good, go to Step #2.

Step #2

If Air Compressor is:

Belt-driven with oil drain to engine, check for a plugged drain.
Gear driven, remove Air Compressor and check drain ports.
If drain is plugged, replace or repair as necessary.
If drain is not plugged, replace Air Compressor.

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