1971-02-01

Urban Transportation and Emissions 710559

This paper describes techniques and other significant factors to satisfy good maintenance, consistent with the control and abatement of diesel exhaust emissions in urban transit operations. Major stress is placed on the use of instruments, not only for inspection, diagnosing, and correcting obvious faults which cause black and blue smoke, but also for monitoring engine deterioration and indicating when motor and torque oil should be changed.Engine wear is cited as the major enemy to both engine life and control of less obvious yet more troublesome emissions-and fuel dilution and dirty engine conditions as major causes of wear. The use of new devices to reduce fumes and an approach to engine and component replacement for an optimum balance between long life and good performance are described.

SAE MOBILUS

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