Bombardier SeaDoo 1992 factory shop manual, Page 187Get this manual
Section 08 PROIPULSION AND DRIVE SYSTEMS Sub-section 01 (PROPULSION AND DRIVE SYSTEMS)
Radiail Play Radial play is critical for jet pump unit life span Radial play of impeller shaft is checked with shaft in housing, without impelller Retain housing in brass jaw vise making sure not to damage housing lug Set dial gauge and position its tip onto end of shaft, close to end of threadsMove shaft end up and down Difference between highest and lowest dial gauge reading is radial play Maximum permissible radial play is 0.05 rnm (.a02 in)Measuring irnpetler shaft radial play
Excessive play can come either from worn bearings or mpeller shaft or damaged impeller housing bearing surfacesMeasuring shaft diameters wiill determine defective part Using micrometer, measure diameters on bearing contact surfacesMinimum shaft diameter should 22 24 be mrn (.a76 in)A shaft within tolerance indicates worn bearingsReplace both bearings