Page 315 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

Clean the injector body and the components to be re-used in an ultrasonic cleaning bath.
Set the temperature of the cleaning agent to 140... 158 °F after approx. 15 min, take the component out of the
cleaning bath.
Dry all parts with compressed air.
Use a suitable tool, e.g. a suction pump, to clean the sealing surfaces at the injector body.
Inspection of the components

Check the thread for the nozzle retaining nut for contamination coke deposits corrosion and mechanical damage.
If The thread is in perfect condition. Repair is possible.
Check nozzle resting surface
Use a magnifying glass to check the resting surface for damage and corrosion. If the resting surface is in perfect
condition, Repair is possible. If it is corroded, Replace the injector.

Check hole in body
Use a magnifying glass to check the hole in the injector body for damage and corrosion. IF the hole in the body
is in perfect condition, Repair is possible.IF Hole in body damaged/corroded (1), Repair is not possible. Replace
the common rail injector
Check thread for inlet connector
Use a magnifying glass to check the thread for the inlet connector for damage and corrosion. IF Thread for inlet
connector in perfect condition, Repair is possible If Thread for inlet connector damaged , Repair is not possible.
Replace the Common rail injector.
Check resting surface for inlet connector
Use a magnifying glass to check the resting surface for damage and corrosion. If The resting surface is in perfect
condition, Repair is possible. IF Resting surface damaged/corroded, Repair is not possible. Replace the Common
rail injector with a new one.
Assembling Of CRDI Injector

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CITS : Automotive - Mechanic Diesel - Exercise 17.3