Mercury D4.2L D-Tronic Service Manual

6
B
CLOSED COOLING SYSTEM
SERVICE MANUAL NUMBER 22
90-860074-1 FEBRUARY 2002 Page 6B-1
COOLING SYSTEMS
Section 6B - Closed Cooling System
Table of Contents
Specifications 6B-4. . . . . . . . . . . . . . . . . . . . . . . . .
Capacity 6B-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermostats 6B-4. . . . . . . . . . . . . . . . . . . . . . .
Pressure Cap 6B-4. . . . . . . . . . . . . . . . . . . . . .
Coolant 6B-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Specifications 6B-5. . . . . . . . . . . . . . . . . .
Lubricants / Sealants / Adhesives 6B-5. . . . . . .
Tools 6B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools 6B-5. . . . . . . . . . . . . . . . . . . . . . .
Tools 6B-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagrams and Exploded Views 6B-6. . . . . . . . . .
Coolant Flow Diagram 6B-6. . . . . . . . . . . . . . .
Heat Exchanger / Coolant Tank
and Related Components 6B-8. . . . . . . . . . .
Engine Water Circulating Pump 6B-10. . . . . .
Checking Coolant Level 6B-11. . . . . . . . . . . . . . .
Testing Closed Cooling System 6B-12. . . . . . . .
Testing Coolant for Alkalinity 6B-12. . . . . . . .
Pressure Testing System 6B-12. . . . . . . . . . .
Testing for Cylinder Head
Gasket Leak 6B-14. . . . . . . . . . . . . . . . . . . . . .
Testing Pressure Cap 6B-15. . . . . . . . . . . . . .
Coolant Change Interval 6B-17. . . . . . . . . . . . . .
Coolant Requirement 6B-17. . . . . . . . . . . . . . . . .
Draining Closed Cooling System 6B-17. . . . . . .
Cleaning Closed Cooling System 6B-19. . . . . . .
Using A Cleaner 6B-19. . . . . . . . . . . . . . . . . . .
Heat Exchanger and Cooler Cleaning 6B-19
Flushing The Closed Cooling System 6B-20
Filling The Closed Cooling System 6B-21. . . . .
Thermostats 6B-22. . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6B-22. . . . . . . . . . . . . . . . . . . . . . . . .
Testing 6B-23. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6B-25. . . . . . . . . . . . . . . . . . . . . . . .
Heat Exchanger 6B-26. . . . . . . . . . . . . . . . . . . . . .
Testing 6B-26. . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair 6B-26. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6B-27. . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning and Inspection 6B-28. . . . . . . . . . . .
Installation 6B-29. . . . . . . . . . . . . . . . . . . . . . . .
Water Circulating Pump 6B-31. . . . . . . . . . . . . . .
Removal 6B-31. . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning and Inspection 6B-31. . . . . . . . . . . .
Installation 6B-32. . . . . . . . . . . . . . . . . . . . . . . .
Coolant Manifold 6B-33. . . . . . . . . . . . . . . . . . . . .
Corrosion Protection 6B-33. . . . . . . . . . . . . . . . . .
Auxiliary Hot Water Heater Connections 6B-33.

Mercury D4.2L D-Tronic Specifications

General

Brand	Mercury
Model	D4.2L D-Tronic
Category	Engine
Language	English