MerCruiser MCM 3.0LX User Manual

1B - 0 - MAINTENANCE 90-816462 2-695
Table of Contents
Page
Maintenance Schedule 1B - 1. . . . . . . . . . . . . . . . . . .
To Be Done by Owner 1B - 1. . . . . . . . . . . . . . . . .
Maintenance Schedule (Continued) 1B - 2. . . . . . . .
To Be Done by Dealer 1B - 2. . . . . . . . . . . . . . . . .
Tune-Up Specifications 1B - 3. . . . . . . . . . . . . . . . . .
Fluid Capacities 1B - 4. . . . . . . . . . . . . . . . . . . . . . . . .
4 Cylinder 1B - 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20-Hour Break-In Period 1B - 5. . . . . . . . . . . . . . .
After 20 Hour Break-In Period 1B - 5. . . . . . . . . .
20-Hour Checkup 1B - 5. . . . . . . . . . . . . . . . . . . . .
Fuel, Oil, Fluid, and Coolant Specifications 1B - 6.
Fuel 1B - 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gasoline/Alcohol Blends 1B - 7. . . . . . . . . . . .
Effects of Gasoline/Alcohol Blends
on Marine Engines 1B - 7. . . . . . . . . . . . . . . . .
Boat/Motor Storage 1B - 7. . . . . . . . . . . . . . . .
Winter Storage 1B - 7. . . . . . . . . . . . . . . . . . . .
Warranty 1B - 7. . . . . . . . . . . . . . . . . . . . . . . . . .
Continuing Evaluations 1B - 7. . . . . . . . . . . . .
Test For Alcohol Content In Gasoline 1B - 7.
Crankcase Oil 1B - 8. . . . . . . . . . . . . . . . . . . . . . . .
Priming Engines with Oil 1B - 8. . . . . . . . . . . . . . .
Power Steering Fluid 1B - 8. . . . . . . . . . . . . . . . . .
Coolant for Closed Cooling System 1B - 9. . . . .
Maintaining Crankcase Oil Level 1B - 9. . . . . . . . . .
Overfilled Engine Crankcase 1B - 9. . . . . . . . . . .
Page
Checking Engine Oil Level/Filling 1B - 9. . . . . . .
Changing Oil and Filter 1B - 9. . . . . . . . . . . . . . . . . . .
Maintaining Power Steering Pump
Fluid Level 1B - 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
With Engine Warm 1B - 10. . . . . . . . . . . . . . . . . . .
With Engine Cold 1B - 10. . . . . . . . . . . . . . . . . . . .
Filling and Bleeding Power Steering
System 1B - 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintaining Closed Cooling
Coolant Level 1B - 11. . . . . . . . . . . . . . . . . . . . . . . . .
Flushing Cooling System 1B - 11. . . . . . . . . . . . . . . .
Lubrication 1B - 13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle Cable 1B - 13. . . . . . . . . . . . . . . . . . . . . . .
Models with 2 Barrel Carburetor 1B - 13. . . .
Shift Cable 1B - 13. . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Coupler/U-Joint Shaft Splines 1B - 14. .
Audio Warning System 1B - 14. . . . . . . . . . . . . . . . . .
Maintenance 1B - 14. . . . . . . . . . . . . . . . . . . . . . . .
Cold Weather or Extended Storage 1B - 14. . . . . . .
Precautions 1B - 14. . . . . . . . . . . . . . . . . . . . . . . . .
Layup 1B - 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Draining Instructions 1B - 16. . . . . . . . . . . . . . . . . . . .
Draining Seawater (Raw-Water)
Cooled Models 1B - 16. . . . . . . . . . . . . . . . . . . . .
Draining Seawater Section of Closed
Cooled (Coolant) Models 1B - 18. . . . . . . . . . . . .
Recommissioning 1B - 19. . . . . . . . . . . . . . . . . . . .
NOTICE
For information and procedures on troubleshoot-
ing, refer to SECTION 1C.
1B - MAINTENANCE
Index

MerCruiser MCM 3.0LX Specifications

General

Displacement	181 CID (3.0L)
Horsepower	135 HP
Fuel System	Carbureted
Ignition	Electronic
Alternator	65 Amp
Cylinders	4
Aspiration	Naturally Aspirated
Horsepower @ RPM	135 HP @ 4800 RPM
Full Throttle RPM Range	4400-4800 RPM
Fuel Type	Gasoline
Cooling System	Raw Water Cooled
Oil Capacity	4.5 Quarts
Bore x Stroke	4.00 x 3.60 in. (101.6 x 91.4 mm)
Dry Weight	635 lbs