Air Intake Pre-Spinner
The 3.0L 1KZ-TE Turbo Diesel Prado engine draws its air through a cyclonic pre-spinner inside the intake duct. The pre-spinner is designed to spin heavier particles from the intake air stream and deposit them inside the rubber one way valve at the bottom of the duct.
Periodically, the rubber one way valve needs to be emptied of
Depress the rubber valve flaps as shown above. This will
release trapped deposits (dirt particles above).
The pre spinner shown above. Note the muddy water marks indicating that water has entered the air intake system. A factory bull bar was fitted (see bull bar warning on the 120 Series technical page).
Looking inside the pre spinner, heavier particles are spun and passed into the outher cavity.
Particles finally make their way through a slot and into the rubber one way valve.