Pump Unit
90-8M0050731 MAY 2011 Page 5A-1
5
A
Pump Unit
Section 5A - Pump Unit
Table of Contents
Wear Ring/Impeller Specifications.....................................5A-2
XR2 Sport Jet Special Tool Kit 91‑809957A1....................5A-5
Components Contained in Kit.....................................5A-5
Pinion and Impeller Shaft Components.............................5A-6
Nozzle and Rudder Components.......................................5A-8
Jet Drive Housing Components.......................................5A-12
Expansion Chamber and Adapter Plate Components.....5A-16
General Service Recommendations................................5A-20
Bearings....................................................................5A-20
Shims........................................................................5A-20
Seals.........................................................................5A-20
Principles of Operation.....................................................5A-20
Servicing the Stator, Impeller, and Wear Ring.................5A-21
Disassembly.............................................................5A-21
Inspecting the Wear Ring and Impeller............................5A-24
Wear Ring.................................................................5A-24
Impeller.....................................................................5A-25
Impeller and Stator Installation........................................5A-25
Removing Jet Drive from Boat.........................................5A-28
Drive Housing Disassembly and Assembly.....................5A-29
Draining and Inspecting Drive Housing Lubricant.....5A-29
Pinion Shaft Removal...............................................5A-30
Impeller Shaft Removal............................................5A-33
Shimming Procedures and Assembly.......................5A-37