TURBOCHARGER SERVICE MANUAL NUMBER 22
Page 7C-10 90-860074--1 FEBRUARY 2002
Checking Turbine Bearings (Assembled)
1. Refer to the following pages for Turbocharger - Removal and remove exhaust elbow as
outlined for your engine.
2. Rotate the turbine impeller by hand to see that it turns smoothly. If not, turbine bearings
or impeller problems exist.
3. Using a feeler gauge as shown, check clearance between turbine blades and housing
at two locations opposite one another. The difference in the two readings is the radial
play. Maximum radial play is 0.42 mm (0.0165 in.).
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Checking Turbine Blade Clearance
4. Check if turbine blades are rubbing on housing, replace turbocharger as necessary.
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