3116 and 3126 HEUI Truck Engines Engine Crankcase Breather – Clean

Perform this maintenance at every other oil change interval (500 Service Hours), or more often if needed.

(1) Hose clamp. (2) Hose. (3) Bolt. (4) Breather.

1. Loosen hose clamp (1). Slide hose (2) from breather (4).

2. Loosen bolt (3). Remove breather (4) and O-ring seal.

3. Wash breather (4) in clean, nonflammable solvent. Allow the breather to dry.

4. Install a new O-ring seal.

5. Install the breather in reverse order of removal. Tighten bolt (3) to 7 ± 2 N·m (62 ± 18 lb in).

6. Slide hose (2) on to breather (4). Tighten hose clamp (1). Refer to the Torque Specifications.