WARNING  When using a steam cleaner, wear protective clothing and safety glasses or a face shield. Hot steam can cause serious personal injury.

Use a steam cleaner or a high pressure washer to clean the engine.

Check the engine crankcase breather element, hose, and tube for restriction. Refer to Procedure 003-001 in Section 3.

Add fluorescent dye tracer, Part Number 3376891, to the oil. Use a black light, Part Number 3377394, to locate leakage.

Check for a loose or missing oil dipstick tube, dipstick, or oil filler cap.

Operate the engine until the water temperature reaches 82°C [180°F]. Inspect the exterior of the engine for leaking gaskets, seals, o-rings, pipe plugs, or fittings.

Use a black light, Part Number 3377394, to locate leaks if necessary. Follow the manufacturer's operating instructions to use the black light.

NOTE: Before removing and replacing any gaskets, check the capscrews to make sure they are tightened to the correct torque values. Refer to Section V for capscrew torque specifications.