Mercury MerCruiser D2.8L D-Tronic Service Manual page 729

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