Important Information, Maintenance, and
Troubleshooting
Section 1C - Maintenance
Table of Contents
Engine and Tune‑Up Specifications.................................. 1C-3
Notes on Engine Specifications..................................1C-3
6.2 MPI ECT and 6.2 MPI Non‑ECT...........................1C-3
Fluid Specifications............................................................1C-3
Engine........................................................................ 1C-3
Power‑Assisted Steering and Power Trim Fluids....... 1C-4
Maintenance Intervals........................................................1C-4
Maintenance Schedule—Inboard Models..........................1C-4
Routine Maintenance..................................................1C-4
Scheduled Maintenance............................................. 1C-4
Maintenance Schedule—TowSport Models.......................1C-5
Routine Maintenance..................................................1C-5
Scheduled Maintenance............................................. 1C-5
Maintenance Schedule—Sterndrive Models......................1C-6
Routine Maintenance..................................................1C-6
Scheduled Maintenance............................................. 1C-7
Engine Oil.......................................................................... 1C-8
Checking and Filling the Engine Oil............................1C-8
Changing the Engine Oil and Filter.............................1C-9
Transmission Fluid................................................... 1C-11
Power Trim Fluid..............................................................1C-13
Checking...................................................................1C-13
Filling........................................................................ 1C-13
Changing.................................................................. 1C-14
Flame Arrestor................................................................. 1C-14
Serpentine Drive Belt.......................................................1C-15
Inspection and Routing.............................................1C-16
Replacing Belt.......................................................... 1C-16
Fuel System.....................................................................1C-17
Water‑Separating Fuel Filter.................................... 1C-17
Closed‑Cooling System................................................... 1C-19
Checking Coolant Level............................................1C-19
Cleaning and Inspection........................................... 1C-19
Changing Coolant.....................................................1C-19
Power‑Assisted Steering Fluid.........................................1C-19
Power‑Assisted Steering Fluid—Sterndrive only......1C-19
Changing.................................................................. 1C-21
Compact Hydraulic Steering............................................ 1C-21
System Check.......................................................... 1C-22
Bravo Sterndrive Gear Lube............................................ 1C-22
Checking...................................................................1C-22
Filling........................................................................ 1C-22
Changing.................................................................. 1C-23
Visual Inspections............................................................1C-24
Battery...................................................................... 1C-24
Instruments...............................................................1C-24
Remote Control........................................................ 1C-24
Electrical System...................................................... 1C-24
Exhaust System........................................................1C-24
Seawater Pump........................................................ 1C-25
Steering System Lubrication............................................1C-25
Corrosion Prevention ...................................................... 1C-26
Maintaining Ground Circuit Continuity...................... 1C-26
MerCathode..............................................................1C-28
Power Package Exterior Surfaces............................1C-28
Seawater System.............................................................1C-29
Cleaning the Seawater Strainer, If Equipped........... 1C-29
Checking the Seawater Pickups...............................1C-30
Draining the Seawater System........................................ 1C-30
Draining the Raw Water........................................... 1C-30
Air Actuated Single‑Point Drain System (Closed
Cooling, Inboard Models)......................................1C-30
Air Actuated Single‑Point Drain System (Standard
Cooling).................................................................1C-33
Air Actuated Single‑Point Drain System—Bravo
Seawater Cooling..................................................1C-36
Draining the Sterndrive.............................................1C-38
Draining the Seawater System........................................ 1C-39
Draining the Raw Water........................................... 1C-39
Air Actuated Single‑Point Drain System (Closed
Cooling).................................................................1C-39
Air Actuated Single‑Point Drain System (Closed
Cooling, Inboard Models)......................................1C-42
Flushing the Power Package (Bravo).............................. 1C-45
Flushing the Power Package....................................1C-45
SeaCore Power Package Flushing Procedure......... 1C-48
Cold Weather or Extended Storage.................................1C-51
Preparing Power Package for Storage—MPI Models
.............................................................................. 1C-51
Power Package Recommissioning.................................. 1C-52
Maintenance
90-8M0099748 eng DECEMBER 2015 © 2016 Mercury Marine Page 1C-1
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