TM 10-3930-671-24 Disassembling Water Pump REASSEMBLY AND INSTALLATION 1. Reassemble    pump,    replacing    worn    or    failed parts.    Seal  contact  surfaces  must  be  smooth and   flat.      The   bushing   should   be   replaced   if scored or cut.  A light film of lubricant applied to the   face   of   the   seal   will   facilitate   seating   and sealing. 2. Use  thick  soapsuds  on  both  the  seal  and  shaft when assembling in order to prevent damage to the seal. 3. The fan hub  must  be  installed  prior  to  replacing rear plate.  The shaft  must  be  supported  during this operation to prevent damage to the seal and bushing. 4. Mount   pump   assembly   on   block   using   a   new housing gasket. 5. Install  fan  belt  and  adjust  belt  tension  to  have 112’ (13mm) deflection on long side.  Pull out the alternator by hand, as bearing damage will result with a pry bar. 6. Refill cooling system. F-150