Trouble in engine and it's remedial action Fault 6

Trouble in engine which damaged parts.

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This is a series of trouble shooting technique for the track machine working in indian Railway. When you study with this you able to rectify a fault of machine. If this is helpful for you than share with others. It may helps them. Thanks in advance for sharing.

Now first we start with engine model number TBD 232V12

6) fault :- Engine Knocking.

Probable cause and remedial action

A) Incorrect injector sitting.
Remove the faulty injector and get it reset or replace it with new one.
B) Mechanical damage to piston or cylinder.
Call the service engineer.

C) valve clearance is not proper.

To check Valve clearance, and adjust the clearance follow these steps:-
a) Un-screw bolts and remove cylinder cover.
b) Crank engine until the inlet valve closed then turn approx (1/2) half turn further.
c) The feeler gauge should pass between the valve cone end and the rocker lever with suction.
d) If the valve clearance need resetting loosen lock nut and re-adjust by means of the set screw.
e) Tighten lock nut and recheck valve clearances.
f) Renew gasket, sealing ring and fit cylinder head cover.

D)  Fuel injection timing not proper.
Correct the timing or call the service engineer.