Troubleshooting and Repair of Diesel Engines, Fourth Edition

Troubleshooting and Repair of Diesel Engines, Fourth Edition

 Paul Dempsey

Preference :

There are several areas that have changed drastically during the last few years with
diesel engines and will greatly affect the near future of diesel engine technologies. The
highway trucking industry was the first to require these changes to meet federal EPA
emissions guidelines for diesel engines back in the late 1980s. In the mid-1990s these
same guidelines were required of the off-highway heavy equipment industry. Now
even areas not affected in the past such as the marine, petroleum, and agricultural
industries have come under these new requirements. They will change these indus-
tries in the same way they have previously changed the trucking and heavy equipment
industries. During the last 20 years only certain engine horsepower sizes or industries
have come under these federal guidelines. However, the 2007, 2010, and 2012 emis-
sions guidelines will cover and affect all horsepower sizes and industries. Additionally,
in most areas the current technologies to meet the 2007 guidelines will not completely
meet the 2010 and 2012 requirements without additional technological changes or
improvements.

These technological changes are inevitable and future technician training needs
will be a reality. This is where diesel engine course books like Troubleshooting and
Repairing Diesel Engines can help the technician stay current with these changing
technologies. To show how rapidly these changes have taken place, information of
some past and current examples of those areas affected are mentioned.
Since the inception of the EPA guidelines for diesel engines back in the 1980s, most
major engine manufacturers have meant the following reductions. Engine particulates
have been reduced by 90% and nitrous oxides by nearly 70%. Added to the equation
in the 1990s was noise pollution, with reductions required in engine noise levels from
83 to 80 decibels. Although this doesn’t seem like much, it is equal to a 50% noise
energy reduction. Add to that the effects of the reduction in fuel sulfur in diesel fuels

from 5% to 0.5% to 0.05% (in ppm, 5000 to 500 to 50). Sulfur being the lubricating ele-
ment in diesel fuels has required many changes to fuel system components.

Troubleshooting and Repair of Diesel Engines, Fourth Edition

Content :
  • Rudolf Diesel
  • Diesel basics
  • Engine installation
  • Basic troubleshooting
  • Mechanical fuel systems
  • Electronic management systems
  • Cylinder heads and valves
  • Engine mechanics
  • Air systems
  • Electrical fundamentals
  • Starting and generating systems
  • Cooling systems
  • Greener diesels


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