SERVICE MANUAL NUMBER 23
SEAWATER COOLED MODELS
COOLING SYSTEM
Section 6A - Seawater Cooled Models
Table of Contents
Torque Specifications . . . . . . . . . . . . . . . . . . 6A-2
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-2
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 6A-2
Lubricants / Sealants / Adhesives . . . . . . . 6A-3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 6A-3
Cooling System Capacity . . . . . . . . . . . . 6A-3
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . 6A-3
Seawater Inlet Recommendations . . . . . . . 6A-4
Transom Mounted or Through-Hull
Seawater Pickups and Hose . . . . . . . . . 6A-4
Seacock (Seawater Inlet Valve) . . . . . . . 6A-4
Sea Strainer . . . . . . . . . . . . . . . . . . . . . . . 6A-4
Seawater Pickups . . . . . . . . . . . . . . . . . . . . . 6A-5
Through-Hull Mounted . . . . . . . . . . . . . . 6A-5
Transom Mounted . . . . . . . . . . . . . . . . . . 6A-6
Sea Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-8
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . 6A-9
Seawater Pickup Pump . . . . . . . . . . . . . . . 6A-10
Output Test . . . . . . . . . . . . . . . . . . . . . . . 6A-10
Seawater Pump Disassembly . . . . . . . 6A-11
Seawater Pump Reassembly . . . . . . . . 6A-12
Seawater Pump Bearing Housing . . . . . . 6A-13
Disassembly . . . . . . . . . . . . . . . . . . . . . . 6A-13
Cleaning and Inspection . . . . . . . . . . . . 6A-15
Reassembly . . . . . . . . . . . . . . . . . . . . . . 6A-16
Water Circulating Pump . . . . . . . . . . . . . . . 6A-19
Removal . . . . . . . . . . . . . . . . . . . . . . . . . 6A-19
Cleaning and Inspection . . . . . . . . . . . . 6A-19
Installation . . . . . . . . . . . . . . . . . . . . . . . . 6A-19
Drive Belt Tension Adjustment . . . . . . . . . 6A-20
Flushing Seawater Cooling System . . . . . 6A-21
454/502 Mag MPI and 8.2L MPI
Engines (Except Horizon Model) . . . . 6A-21
454 Mag MPI Horizon Models . . . . . . . 6A-22
Seawater Strainer . . . . . . . . . . . . . . . . . . . . 6A-23
Removal and Disassembly . . . . . . . . . . 6A-23
Cleaning and Inspection . . . . . . . . . . . . 6A-24
Reassembly . . . . . . . . . . . . . . . . . . . . . . 6A-24
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-24
Removal . . . . . . . . . . . . . . . . . . . . . . . . . 6A-24
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-25
Installation . . . . . . . . . . . . . . . . . . . . . . . . 6A-26
Auxiliary Hot Water Heater Installation . . 6A-27
Water Tap Locations For Propshaft
6
A
Coolers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-28
Water Flow Diagram . . . . . . . . . . . . . . . . . . 6A-28
MCM / MIE Models With Raw Water
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-28
90-861326--1
MARCH 1999
Page 6A-1
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...