Noisy Pump; Fluid Leaks - Mercury MerCruiser D2.8L D-Tronic Service Manual

TROUBLESHOOTING

Noisy Pump

1
2. Low fluid level
3. Air in fluid
4. Faulty Pump
5. Restricted fluid passages
6. Stop nut adjusted improperly
7. Steering cables installed that do not
meet ABYC standards

Fluid Leaks

1. Loose hose connections
2. Damaged hose
3. Oil leaking from top of pump
4. Cylinder piston rod seal
5. Faulty seals in valve
6
7. Cracked or porous metal parts
Page 1C-32
Cause
Drive belt
Cause
Faulty seals in O-rings in pump
SERVICE MANUAL NUMBER 22
Special Information
1. Check belt tension
3. Air leak in lines, pump, or air form
installation
4. Use stethoscope to listen for noise in
pump
5. Kinks or debris in hoses or debris in
passages
6. Refer to appropriate Mercury Mer-
Cruiser Sterndrive Service Manual
7. Refer to appropriate Mercury
MerCruiser Sterndrive Service Manual
Special Information
1. Refer to SECTION 9A for bleeding
instructions
3. System overfilled; fluid contains water;
fluid contains air
90-860074--1 FEBRUARY 2002