1C- 34 - TROUBLESHOOTING 90-816462 2-695
Engine Overheats (Cooling System) (Continued)
15. Antifreeze not mixed properly 15. Antifreeze should be mixed 50/50 or maximum
60/40 (60% antifreeze, 40% water)
16. Heat exchanger cores plugged
17. Water hoses reversed at the water distribution
block
17. Refer to water flow diagram in SECTION 6
Poor, Erratic, or No Assist
Cause Special Information
1. Drive belt 1. Worn, broken or out of adjustment
2. Low fluid level
3. Air in system 3. Air leak in lines, pump, or air from installation.
Refer to SECTION 9A for bleeding procedure.
4. Leaking hoses 4. Refer to SECTION 10A for bleeding procedure.
5. Steering cables and/or steering helm 5. Cable or helm partially frozen from rust or
corrosion; cable over-lubricated; improper cable
installation
6. Binding in stern drive unit 6. Refer to appropriate Stern Drive Service Manual
7. Restriction in hydraulic hoses 7. Causes a loss of pressure
8. Control valve not positioned properly, not
balanced properly, or the mounting nut is loose
9. Mounting bracket adjusting screw loose or
mounting tube is loose
10. Faulty pump 10. Flow control valve may be sticking
11. Worn piston ring or scored housing bore in
cylinder
11. Causes loss of pressure
12. Leaking valve body or loose fitting spool
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