Positive Crankcase Ventilation: Description and Operation

Crankcase Ventilation, Cleaning

Removing the intake manifold (B52x4T)







Remove the pipe screw. Lift out the intake manifold.

Cleaning







- Disconnect the hose (1) from the nipple.
- Also detach the other end of the hose (1). Check that air flows through.
- Blow the hose clean using compressed air (2). If the hose is blocked, use a welding rod (maximum dia. 2.3 mm, approximately 250 mm long) to unblock the hose (1).
- Clean the nipple using a dia. 2.3 mm drill bit (3).
- Install the hose on the nipple.

Installing the intake manifold (B52x4T)







- Install a new gasket for the intake manifold.
- Lift in the intake manifold. Install the pipe screw using new gaskets.