TRUCK SERVICE MANUAL
Caution: All parts and work area must be free of
grease, oil and dirt to keep abrasives out of
turbocharger during assembly and to obtain correct
dimensional stack-up of parts and prevent premature
1. Use a piece of tubing or mandrel on shoulder of shaft
and check floating bearing end clearance on shaft. It
should be 0.005 to 0.009 inch [0.13 to 0.23 mm].
2. Position new metal covered insulation pad on turbine
end of bearing housing. Fig. 10-22.
Fig. 10-20, T-316. Measuring floating bearing O.D.
Collector housing that is deeply scored from contact with
housing contour is critical to proper turbocharger
Fig. 10-22, T-529. Installing insulation pad
3. Install heat shield on bearing housing. Fig. 10-23.
4. Position sealing rings In grooves on turbine end of
rotor shaft. Fig. 10-24.
If slight scratches or nicks are present, they may be
smoothed out with a very fine polishing cloth and the
collector housing may be reused. Discard If cracked or
"V" clamps may be cleaned and reused unless they are
Fig. 10-23, T-530. Installing heat shield