Trouble in engine (cummins) and it's remedial action fault 6

Trouble in engine which damaged parts.

You are on n4net and this is indian railway track machine trouble shooting with you.

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

Now we study about "CUMMINS" engine

6) fault :- Output of engine too low.

Probable cause and remedial action

A) Dirty fuel filter and fuel line.

Check fuel filters and If necessary:-
a) Change fuel filter.
b) Change fuel filter element.
c) Clean the inlet filter.

B) Air in the fuel system.

Bleed air from fuel system in the following steps:-
a) loosen the bleed plug on the fuel on the fuel filter and operate the priming pump until the fuel emerge of bubbles tighten the bleed plug.
b) The loosen banjo on injector pump and operate priming pump until fuel emerged free of bubbles. Tighten the banjo plug.
C) Deffective injector.
Remove the defective injectors and get it overhauled/calibrated or replace with new one.

D) Valve clearance is not proper.

To check Valve clearance, and adjust the clearance follow these steps:-
a) Unscrew 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 readjust by means of the set screw.
e) Tighten lock nut and recheck valve clearances.
f) Renew gasket, sealing ring and fit cylinder head cover.
E) Air filter chocked.
Clean air filter element and change oil.
F) Improper compression.
Engine needs repairs in workshop.

G)  Governor is stuck.
Call the service engineer. Governor needs repair.