The first edition of this book developed from my own experiences when we installed Stormalongs present engine in 1990. Stormalong is a fairly heavy-displacement gaff cutter, built in 1936 of fine Scandinavian redwood and hard English oak. Her 6-ton hull is easily driven but really needed a new engine between about 24 hp and 30 hp. When we embarked on this project I soon discovered a whole fascinating area of engineering knowledge and tricks of the trade of which I'd hitherto been largely unaware. This short book is really a distillation of what I learnt in the process and my intention has been to pass on this information for the benefit of others who decide either to install a new engine themselves or oversee a new installation carried out by an engineer.
Actually choosing a new engine turned out to be a more complex task than I had imagined, partly because we were fitting a relatively compact 'new generation' diesel into a space once occupied by a physically much larger and completely different shaped petrol engine of venerable vintage. At the time, within the feasible power range for Stormalongs hull, I picked out 11 engines as possible contenders, all of which had different pros and cons in terms of size, weight, performance, ease of installation and maintenance, and of course cost. From this original list I finally decided on the Perkins Perama M30, a three-cylinder 30 hp diesel in what was then Perkins' new compact range of marine engines. The Perama turned out to be an excellent choice and has served us well, and was also by far the best value engine in our original comparison list.
However, the Perama no longer exists as a Perkins model. Not long after our engine was installed, Perkins and Volvo Penta entered into an arrangement whereby Perkins ceased to market engines under 80 hp themselves and instead supplied base engines for Volvo Penta. Since then, developments in engine technology have continued steadily and now, in 2006, there is a different and even better line up of marine diesels in the 24-30 hp range. Yet though we now have improved engines and components to choose from, the important principles of sound installation haven't changed. A sophisticated new marine diesel will give long and reliable service only if the whole installation is well engineered and thought out, and it is to facilitate this process that I have produced this new edition of How to Install a New Diesel Engine.
Содержание
PREFACE
1 CHOOSING A NEW ENGINE
Working out optimum horsepower
Choosing an engine
Review of engines
2 INSTALLING A NEW ENGINE
Designing new engine bearers
New bearers in GRP hulls
Fuel tanks and filters
Exhaust system
Water inlet seacock and strainer
Sound insulation
Getting it all together
3 TRANSMISSION AND STERNGEAR
Flexible coupling
Flexible sterngland and 'floating' shaft
Using an Aquadrive
Installing the Aquadrive
S-drives
V-drives
4 CHOOSING THE RIGHT PROPELLER
6 How a propeller works
Matching a propeller to engine and shaft horsepower
The effect of diameter and pitch
Cavitation and ventilation
Right- or left-handed?
Number of blades
Choosing a propeller
Connecting the propeller
Lubrication
Sacrificial anode
Evaluation
ENGINE ELECTRICS AND CHARGING
Battery capacity
Reviewing your battery consumption
Siting batteries
Battery switching
Charge control
Wiring the engine to the battery
Supplying the services
6 CONTROLS AND INSTRUMENTS
Gear and throttle controls
Choosing a control head
Stop control
Choosing the cables
Installing the control and cables
Engine instruments
Voltmeters
Engine hour meters
Fuel gauges
7 ELECTROLYSIS AND SACRIFICIAL ANODES
Electrical bonding
Propeller shaft anodes
Cooling jacket anodes
8 SEA TRIALS
Fuel
Engine oils
Gearbox oil
Engine coolant
Sterntube greaser
Starting up
Under way
Maximum revs
Continual checks
USING A POWER TAKE-OFF (PTO)
Engine manufacturers' PTO kits
Belt tension
10 PTO AUXILIARY EQUIPMENT
Engine-driven fridge compressors
Bilge and deck wash pumps
Hydraulic power
11 HOT-WATER SYSTEMS
Fitting a hot-water system using a calorifier
12 HOT-AIR HEATING FROM THE ENGINE
13 FITTING A PROP CUTTER
The Spurs cutter
Mounting the cutters
Mounting the wedge holding block
Prevention of electrolysis
The stripper prop cutter
Circular blade cutters
ADDRESSES OF MANUFACTURERS AND SUPPLIERS
INDEX