Fuel Pump - Rebuild (5-02) Section 5 - Fuel System - Group 05 M11 Page 5-8 Inspect the regulator spring for damage and replace if needed. The spring must meet the specifications as shown in the table. Free Length mm [inch] 3068424 1.52 [.060] 5.25 4.0 [8.9] 16.0 [.631] 21.16 [.8337] Wire Dia. mm [inch] No. Coils Load Kg [lb] Length mm [inch] Regulator Spring Specifications Part No. Check and clean all of the flow passages in the cover, housing and gears. Dry with compressed air. Assembly Install the two seals into the support housing, from the drive coupling side. NOTE: The seal nearest the gear pump has a smaller out- side diameter than the seal on the drive coupling side.
Install the fuel seal first. This is the seal nearest to the gear pump. The seal lip must be toward the gear pump. Use driver, Part No. 3823240, to install the seal. Press the seal in until the driver shoulder seats against the front support. Install the oil seal. The seal lip must be away from the gear pump side. Use driver, Part No. 3823250, to install the seal. Press the seal in until the driver shoulder seats against the front support.