Section 9 - Drive Units Fuel Pump and Compressor Drive - Rebuild (9-02) M11 Page 9-9 Measure the inside diameter of the bearing bore in the drive housing. Drive Housing Bearing Bore I.D. mm in 47.676 MIN 1.8770 47.775 MAX 1.8809 Visually inspect the thrust washer for cracks or other damage. Replace the washer if it is cracked or damaged. Measure the thrust bearing thickness. Thrust Bearing Thickness mm in 6.084 MIN 0.2395 6.312 MAX 0.2485 Visually inspect the shaft surface (2). Pay special atten- tion to the pulley hub to shaft shoulder contact area (3). Replace the shaft if scratches, scoring, or fretting is found. Inspect the dowel pin for damage. Replace if required.