105643-0100 ZEXEL 9 420 615 645 BOSCH AUTOM. ADVANCE MECHANISM 9420615645 1056430100 me717191

start by: a) remove fuel transfer pump 1. Remove nut (3), gear (2) and woodruff key from fuel transfer pump.2. Remove the cage assembly (1) from the pump. 3. Remove the bearing and lip-type seals from cage with tooling (A). 4. Remove cover (5) from pump housing.
Be careful of cover and pump body surfaces that fit together to prevent damage to them.
5. Remove the seal from the cover.6. Remove the gear (4), and shaft assembly (6) from the pump housing. 7. Remove the bearing from pump housing with tooling (A).Assemble Fuel Transfer Pump
1. Install the bearing in the pump housing and the bearing cage with tooling (A). Install inner seal in cage to a depth of .580" (14.73 mm) from face of seal. Install outer seal to a depth of .120" (3.05 mm) to outer face of seal. 2. Install seals (4) in pump housing cover and bearing cage (3) with tooling (B). Install the seals with the spring side of lip in the direction shown.3. Put a thin layer of 8S6747 Permatex Aviation type Form-A-Gasket on the sealing surface of the pump housing.
Do not let Permatex get into pump.
4. Install the gear and shaft assembly in the pump housing. 5. Install the cover (6) and bolts (5) on the pump housing. After bolts (5) are tightened the gear and shaft assembly must turn freely.6. Install the bearing cage on the pump housing.7. Install the woodruff key, gear (2) and nut (1) on the shaft. Tighten nut (1) to 22 5 lb.ft. (29.8 6.8 N m).end by: a) install fuel transfer pump