Removal & Installation: Turbocharger: Inspection

1. Ensure impeller wheel (air intake side) rotates smoothly and does not bind or drag. Replace turbocharger if impeller wheel binds or drags.
2. Install dial indicator with stem resting on shaft at impeller wheel. Push shaft back and forth, and note turbocharger end play.
3. Install dial indicator with stem in oil outlet hole and resting on shaft. See Fig 2 and Fig 3 . Move shaft upward and downward, and check radial play. Replace turbocharger assembly if end play or radial play exceeds specification. See TURBOCHARGER SPECIFICATIONS  table.

NOTE: Ensure dial indicator stem is through opening in spacer bearing and resting on shaft when checking radial play.

TURBOCHARGER SPECIFICATIONS

Application	In. (mm)
Maximum End Play	.0051 (.130)
Maximum Radial Play	.0071 (.180)

Fig 1: Exploded View Of Turbocharger & Components

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Checking Turbocharger End Play

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Checking Turbocharger Radial Play

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CAUTION: Ensure at least 20 cc of clean engine oil is poured into oil inlet on turbocharger while rotating impeller wheel to prevent bearing damage.