Fuel Pump and Compressor Drive - Cleaning and Inspection for Reuse (9-01) Section 9 - Drive Units M11 Page 9-6 Fuel Pump and Compressor Drive - Cleaning and Inspection for Reuse (9-01) Cleaning Remove all gasket material from surfaces (1 and 2). Clean the exterior of the drive with solvent, dry with com- pressed air. Inspection Measure the driveshaft end clearance. Drive Shaft End Clearance mm in 0.10 MIN 0.004 0.30 MAX 0.012 If the shaft end clearance does not meet these specifi- cations, rebuild or replace the drive unit. Refer to Fuel Pump and Compressor Drive - Rebuild (9-02). Visually inspect the housing for cracks and non-uniform front and rear gasket sealing surfaces.
Replace the housing or the drive unit if cracks are found, or the gasket sealing surfaces cannot be made uniform using Scotch-Brite T 7448 or its equivalent. Visually inspect the drive gear (1) for cracked or severely worn teeth. Replace the drive gear or the drive unit if the drive gear is cracked or abnormally worn teeth are found. 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.