Page 43 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

EXERCISE 2.8: Removing the cylinder head from the engine

Objectives

At the end of this exercise you shall be able to
• remove the cylinder head from the engine
• decarbonise the cylinder head.

Requirements

Tools/Instruments Materials/Components

• Trainee’s tool kit - 1 No. • Tray - 1 No.
• Box spanner set - 1 Set. • Cotton cloth - as reqd.
• Torque wrench - 1 No. • Kerosene - as reqd.
• Wire brush, Scrapper - 1 No each. • Soap oil - as reqd.
• Lube oil - as reqd.
Equipments/Machines
• Wooden block - as reqd.
• Multi cylinder diesel engine - 1 No.
• Zib crane/engine hoist - 1 No each.

Procedure

• Remove the air cleaner and keep it in a vertical position on a plain surface to avoid spilling of oil.
• Remove the valve cover.
• Disconnect the fuel delivery lines. Hold the inner nut (1) with the help of a double end spanner (2), then loosen
the outer nut(3) with the help of another double end spanner (4). Remove the pipe (5). (Fig 1)
• Remove the fuel pipes and the injectors.
• Loosen the fuel injection pump mounting nuts, by loosening each screw, two turns at a time. Ensure that these
nuts do not fall anywhere.
• Remove the F.I.P. and keep it in a vertical position on a plain surface.
• Loosen nut (1) and pull the alternator (2) downwards till the fan belt becomes loose. Use a screw-driver (3)
between the fan and pulleys or between any of the pulleys and remove the fan belt. (Fig 2)

Fig 1 Fig 2

• Remove the fan assembly with the water pump pulley.
• Take out all the push-rods.

• Remove the tappet side cover and remove the tappets.
• Remove all the cylinder head nuts/bolts.
• Fix the lifting hooks (1) at both ends of the cylinder head (2). (Fig 3)

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