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 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 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.
Symptom
Causes
Remedial action
Engine will not start &
emit black smoke
1.
Air intake obstructed
2.
Defective injectors
3.
Lack of compression.
4.
Cylinder head gasket failure
5.
Engine timing- Valve
6.
CR system
Replace the element.
Check for free operation of
Turbocharger.
Replace
Check compression pressure.- if
low check for valve seat ,rings &
liner wear
Replace the cyl. head gasket.
Check timing chain.
Refer diagnostic manual.
Noisy engine & black
smoke.
1.
Faulty injectors.
2.
Loose main bearings
3.
Broken parts
4.
Rockers loose or out of
adjustment.
Replace injectors
Tighten the main bearings.
Inspect & replace the broken parts.
Check & Adjust tappet clearance.
Engine does not give
full power.
1.
Air intake restricted.
2.
Clogged fuel filter.
3.
Incorrect tappet clearance
4.
Defective injectors.
5.
Air leaks in pressure line after
turbocharger( Turbo to
intercooler, intercooler &
intercooler to intake manifold)
6.
Air leak in pipe – manifold
7.
Fuel return pipe to tank
blocked.
8.
Boost pressure pipe/hose
assembly damaged.
9.
Valve leak
10.
Turbocharger damaged.
11.
Gas leaks between exhaust
manifold & cylinder head.
12.
Restricted exhaust system.
13.
Exhaust gas leak between
turbo & manifold.
14.
Gas leak between EGR pipe
joints
15.
EGR pipe leak.
16.
Fuels supply line kink creating
restriction.
17.
EGR valve improper
functioning.
18.
Compression leak.
19.
Jammed piston rings
20.
Viscous fan continuously
engaged.
21.
Check CR system
Replace air cleaner element if
required.
Replace filter.
Adjust tappets in cold condition.
Replace
Plug the leaks, replace hose or clip
if required.
Replace the hose or tighten
Locate the kink/block in return pipe
and rectify.
Check the pipe, washer & rectify.
Check the compression, relap if
required.
Get the Turbocharger repaired at
authorized TEL dealer.
Replace gaskets.
Replace Turbocharger
Tighten the TC mounting bolts.
Replace gasket if required.
Remove the restriction in exhaust
system.
Change the gasket or the hose.
Replace the pipe.
Remove the restriction.
Check the EGR using the blink
codes. Proceed appropriately.
Check compression.
Replace piston rings.
Check the VFD as outlined in
cooling. Replace if required.
Refer the diagnostic manual
Page 14