03-00-5
Section 03
TROUBLESHOOTING
POOR START, ACCELERATION OR PERFORMANCE OF BOAT
ABNORMAL NOISE FROM PROPULSION SYSTEM
OTHER OBSERVATION
POSSIBLE CAUSE
REMEDY
Jet pump
cavitation
:
• Poor start / acceleration of boat
• Trailing edge of impeller is damaged
• Check / Replace
• Poor top performance of boat and / or
stator vanes erosion
• Leading edge of impeller is damaged
• Check / Replace
Jet pump
ventilation
:
• Pump improperly sealed to ride shoe;
insufficient sealant on the ride shoe or
missing neoprene seal
• Check / Reseal / Install a new neoprene
seal
Engine RPM is high and boat is slow to
accelerate
• Through-hull seal around drive shaft ;
air comes from inside the boat
• Check / Replace
OR
engine does not react quickly when
pushing on throttle lever (assuming that
engine is correct)
• Retaining screws of ride shoe; air
comes from inside the boat.
• Check / Reseal
OR
engine does not keep a steady top
RPM (assuming that engine is correct)
• Retaining screws of intake grate; air
comes from inside the boat.
• Check / Reseal
Other problem
with jet pump
(related to performance) :
Boat does not reach its top speed
• A wear ring with excessive clearance
• Check / Replace
• A damaged or worn pump housing
• Check / Replace
• A damaged impeller
• Check / Replace
• An impeller with the wrong pitch
(too low)
• Check / Replace
• Missing or damaged impeller boot
• Check / Install
• Weeds or debris in intake grate
• Check / Clean
• Weeds or debris in intake grate
• Check / Clean
OTHER OBSERVATION
POSSIBLE CAUSE
REMEDY
• Weeds / debris caught in pump intake
or impeller
• Check / clean
• Low oil level in pump housing
• Check / troubleshoot source of leak /
refill supply, refer to section 09-01
• Damaged or bent drive shaft
• Check / replace, refer to section 09-01
• Broken motor mounts
• Check / replace, refer to section 04-01
• Rusted / worn hull seal carrier
• Check / repair, refer to section 09-01
Summary of Contents for Challenger 5896
Page 1: ......
Page 2: ......
Page 3: ...219 100 044 0 0 0 1996 Shop Manual 0 R ...
Page 152: ...Section 08 ELECTRICAL Sub Section 03 IGNITION SYSTEM 08 03 2 ELECTRICAL BOX Sportster F04H11S ...
Page 154: ...Section 08 ELECTRICAL Sub Section 03 IGNITION SYSTEM 08 03 4 ELECTRICAL BOX Speedster F04H26S ...
Page 251: ...Section 11 HULL DECK Sub Section 01 COMPONENTS 11 01 5 F04L3IS Loctite 242 ...
Page 274: ......