1999 Polaris PWC Genesis, Ficht, X-45 Service Manual, Page 192Get this manual
FINAL DRIVEJET PUMPBILGE SYSTEM
Pump To Hull Alignment
Al ignment Inspection (Vertical or Horizontal Drive Shaft Misalignment)
The pump must be mounted flush with the hu ll and intake scoop to ensure proper driveshaft alignmentSome of the causes of mi5-alignment are listed belowA mi5-aligned pump increases stress on driveline components such as the impeUer and driveshaft (stripped splines), and pump bearingsVentilation of the pu mp cavity may also occur due to leakage of the large pump sealing O-ringCheck pump-ta-hull alignment after installing pump housing to hull or wheneversplines are stripped on the impeUer end of the driveshaftA quick method of checking for pump mi5-alignment problem is measuring the gap between the hull and pump housing with feeler gaugeThe gap should not exceed .010" (.25mm)Pump-to-hulI misalignment can be caused by: -Improperly installed intake scoop (check ride plateit should be flush with bottom of hull)-Improperly installed studs or damage to the hexagonal recess in housing (see page 5.28 and 5.29)-Hull damaged in pump mounting areaDamage to hull may result if pump mounts are over-tightened (often due to the use of air tools), or if studs are improperly installed in pumpIf the hex portion of the stud is not engaged properly in the pump housing recess, the hex portion of the stud may protrude past the edge of the pump housing, and prevent the housing from seating fully against the hullReview the information on pump alignment below and on page 5.24 and 5.25Forward Pump Housing Hull