Page 146 - Mechanic Diesel - TT

MECHANIC DIESEL - CITS

Test were conducted according to following scheme
• Testing of high pressure pump on a test bench.
• Disassembly of high pressure pump into components.
• Analysis of individual high pressure pump units under a microscope.

• Determination of causes of defects in the tested object.
• Testing of the components which could be damaged as a result of pump damage.
Injector

For better performance of engine injector role is very important therefor for testing also we have to advance check
it. With better fuel efficiency and emission control in vehicles:
1 Performance optimization
Injectors deliver fuel to the engine cylinder in precise amount and at the right time. Testing ensures they are
operating within specification, preventing issue like poor acceleration misfire rough idling.
2 Fuel efficiency
Functioning injectors spray fuel in fine mist for efficient combustion. Testing help identify any leaks, clogs or
irregularities that can lead to fuel wastage, reducing fuel efficiency and increasing operating costs.
3 Emission control
Malfunctioning injectors can cause incomplete combustion leading to increase emission of harmful pollutants
like hydrocarbon, carbon monoxide and nitrogen oxides. Testing insure compliance with emission regulation
and minimized impact.
4 Preventive maintenance

Regular testing of injectors can help detect problems early, allowing for timely repair or replacements before
they escalate and causes more significant damage to the engine or other components.
5 Longevity of engine
Properly functioning injectors contributes to the overall health and longevity of the engine by delivering the
right amount of fuel for combustion, reducing wear and tear on engine components.
Overall testing injectors is essential for maintaining vehicle performance, efficiency and environmentally
friendliness while also ensuring the longevity of the engine and its components.

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CITS : Automotive - Mechanic Diesel - Lesson 31 - 38 CITS : Automotive - Mechanic Diesel - Lesson 31 - 38