Repair Manual MAN-00
190
THAR
CRDe
BS-IV
MAY
2012
/Rev 1
The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present
document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained personnel, at the Authorized Service Centre of
Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2012 Mahindra & Mahindra Ltd.
The acceleration map ensures that if the rate of acceleration is above a certain level then the EGR will
not operate. This feature allows full engine power to be available during acceleration (say during
overtaking).
The Engine ECU controls the EGR.
The vacuum connections are shown below.
Working principle of Crankcase Ventilation System
–
Functional blcok diagram of the Crankcase ventialtion is given below –
The ventilation system is closed ventilation type.
The oil vapours from the rocker cover go to the labyrinth type oil separator, which is mounted directly
on top of the cam cover. The outlet from the labyrinth is connected in series to a centrifugal type oil
separator.
The collected oil is drained back to the sump. The gases enter the intake system in between the air
cleaner and the turbocharger.
Certain amount of oil will be carried from the oil separator to the Air inlet hose, which is normal.
However if it is excessive please look for all the causes mentioned in the high blow bye.
THAR CRDe - Vacuum Hoses Connections Layout
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