MerCruiser 305 CID (5.0L) Service Manual page 750

SERVICE MANUAL NUMBER 24
Table of Contents
Torque Specifications . . . . . . . . . . . . . . . .
Lubricants / Sealants / Adhesives
Specifications . . . . . . . . . . . . . . . . . . . . . . .
Closed Cooling System Capacity
Coolant Specification
Thermostat . . . . . . . . . . . . . . . . . . . . . .
Pressure Cap Rating
Description . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Recommendations
Maintaining Coolant Level
Pressure Cap Maintenance
Heat Exchanger Repair
Testing Closed Cooling System
Testing Coolant for Alkalinity
Pressure Testing System
Testing for Cylinder Head
Gasket Leak . . . . . . . . . . . . . . . . . . . . .
Testing Heat Exchanger
Testing Pressure Cap
Index
90-861327--1 OCTOBER 1999
COOLING SYSTEM
Section 6B - Closed Cooled Models
6B-2
. . . . . 6B-2
6B-2
. . . 6B-2
. . . . . . . . . . . . . . 6B-2
6B-2
. . . . . . . . . . . . . . 6B-2
6B-3
. . . . . . . . . . . 6B-3
. . . . . . . . . . . . 6B-3
. . . . . . . . . . . 6B-4
. . . . . . . . . . . . . . 6B-5
. . . . . . . 6B-6
. . . . . . . 6B-6
. . . . . . . . . . 6B-6
6B-7
. . . . . . . . . . . 6B-8
. . . . . . . . . . . . . 6B-8
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . .
Removal . . . . . . . . . . . . . . . . . . . . . . . .
Testing . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation . . . . . . . . . . . . . . . . . . . . . . .
Changing Coolant . . . . . . . . . . . . . . . . . . .
Closed Cooling Section
Change Intervals . . . . . . . . . . . . . . . . .
Draining Instructions
Cleaning System . . . . . . . . . . . . . . . . . . . .
Closed Cooling Section
Seawater Section . . . . . . . . . . . . . . . . .
Filling Closed Cooling Section
Auxiliary Hot Water Heater Installation
Heat Exchanger Bracket Hardware
Heat Exchanger Hose Connections
Closed Cooling System
Water Flow Diagram . . . . . . . . . . . . . . . .
MCM / MIE Models . . . . . . . . . . . . . . .
Draining Diagram
(Coolant Section of System)
CLOSED COOLED MODELS
6B-10
6B-10
6B-11
6B-12
6B-13
. . . . . . . . . . . . 6B-13
6B-13
. . . . . . . . . . . . . . 6B-13
6B-14
. . . . . . . . . . . . 6B-14
6B-14
. . . . . . . . 6B-16
. 6B-17
. . . . 6B-19
. . . . 6B-20
6B-21
6B-21
. . . . . . . . . . 6B-22
Page 6B-1
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B