TANK AS-WATER 3756197 - Caterpillar

General Information
Fig. 1-Engine Ventilating TubeThe engine ventilating system prevents pressure build up in the crankcase. This allows the engine to breathe freely which is necessary for proper lubrication. It consists of a tube leading from the valve cover down the side of the engine (Fig. 1).Removal
Loosen side clamp.Loosen upper clamp if engine is equipped with a flexible hose.Remove ventilating hose or tube.Repair
Inspect tube or hose for cracks.Check tube for restrictions by pouring water through it.Empty water from the tube.Replace bent or crushed tubes. Replace broken or split hoses.Installation
Replace O-ring in rocker arm cover.Install tube on hose and secure with clamp.