Boating Skills And Seamanship Copyright 2014 - Coast Guard Auxiliary Association, Inc. 14th ed. 1 Powering Your Boat Chapter 10 Copyright 2014 - Coast.

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Presentation transcript:

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 1 Powering Your Boat Chapter 10 Copyright Coast Guard Auxiliary Association, Inc. 14th ed.

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 2 Powering Your Boat Chapter 10

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 3 Lesson Objectives Types and characteristics of marine engines Two and four stroke engines Operation and care Gasoline selection Battery maintenance

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 4 Lesson Objectives Electrical system Galvanic action Winterizing and commissioning Trouble shooting

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 5 Types of Marine Engines Installation Inboard Inboard/outboard (stern drive) Outboard

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 6 Four-Stroke Two-Stroke IntakeExhaustIntakeExhaust IntakeExhaust IntakeExhaust Intake Port Exhaust Port Types of Marine Engines Operating Cycle

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 7 Types of Marine Engines Types of fuel used Diesel Gasoline Diesel Engines More efficient than gas engines Cost about the same for fuel Larger and heavier than gas engines More expensive

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 8 Types of Marine Engines Risks from fuel Gasoline – volatile and gives off fumes Diesel – Higher flash point less volatile

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 9 Types of Marine Engines Inboard engines Direct - DriveV - Drive Reprinted with permission from Boatowner ’ s Mechanical and Electrical Manual, Third Edition, by Nigel Calder

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 10 Types of Marine Engines Jet drives Power from pulling water in and expelling it Steering requires directing water jet

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 11 Types of Marine Engines Tunnel drives Variant of a direct drive Efficient forward thrust Hull acts as protective shroud making it ideal for shallow waters

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 12 Types of Marine Engines Stern drive vs. Outboard Outboards weight less for comparable power Stern drive uses 15% to 30% less fuel Stern drive requires more deck space Stern drives are more quiet Outboats move engine and electrical outside boat Most boats outlast engines so in time replacing an outboard may be easier

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 13 Student Activity Name types of Marine engines Inboard I/O Stern Outboard Jet Drive

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 14 Induction Systems Carburetor Older technology for mixing gas and air Fuel injection In many cases has replaced carburetor Use small computer ‘black box’ for better fuel usage and operation of the engine

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 15 Ignition Systems Diesel Gasoline Magneto ignition Alternator battery Magneto Electronic

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 16 Cooling Systems Air cooled system Open (seawater) cooling system Fewer parts to fail Closed (freshwater) cooling system Better for engine, but… More complicated Needs seawater pump and heat exchanger

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 17 Gasoline Considerations Octane rating Ethanol content? Is engine rated to use ethanol? Fuel tanks Clean and rust-free Free of dirt, grime, oil, etc. Secured firmly to boat

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 18 Batteries Charged Switch Secure

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 19 Maintenance Lubrication Crankcase Bilge pumps Belts Ignition system Reprinted with permission from Outboard Engines by Edwin R. Sherman

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 20 Winterizing Your Boat Crankcase Transmission Fuel tank Gasoline engine Cooling systems Lower units Ignition system Freshwater system Heads and Galley

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 21 Spring Fitting Out

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. 22 Trouble Shooting Engine won’t turn over Engine won’t start Engine runs rough Engine idles but does not develop full power

Boating Skills And Seamanship Copyright Coast Guard Auxiliary Association, Inc. 14th ed. Thank you Illustrations provided by McGraw Hill Education 23 The