Bombardier SeaDoo 1998 factory shop manual, Page 274Get this manual
Section 09 PROPULSION SYSTEM Subsection 02 (JET PUMP)
F02J0UA
F01J18A
1Check for cavitation, deep scratches or other damage
21, Wear Ring
Check wear ring for deep scratches, irregular surface or any apparent damageIf impellerwear ring clearance is too large and impeller is in good shape, renew wear ring
TYPICAL MEASURING IMPELLER SHAFT RADIAL PLAY 1Dial gauge 2Measure close to threads at shaft end