Page 101 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

EXERCISE 4.4: Replacing fuel filter element (petrol)

Objectives

At the end of this exercise you shall be able to
• remove the fuel strainer from the filter cap clean the fuel strainer
• fit a new fuel filter element in the filter bowl
• fit the filter unit on the engine and connect the fuel pipes.
Requirements

Tools/Instruments Materials
• Trainee’s tool kit - 1 No. • Hose clamps
Equipments/Machines • Petrol/Kerosene
• New fuel filter element
• 4 cylinder petrol engine
• Air compressor
Procedure

Removing
• Remove the fuel filter inlet hose (2) Fig 1
and tie it above the tank level to avoid
spillage of petrol.
• Remove the fuel filter outlet hose (4)
and collect the fuel in a container.
• Remove the filter mounting bolts.
• Remove the filter unit.
• Loosen the fixing thumb screw and clip.
• Remove the glass bowl (1).
• Take out the filter element (3) from the
filter cap.
• Remove the filter cap and mark the
position of the outlet passage.
• Cleaning and inspection
• Clean the cap with kerosene.
• Clean the bowl with kerosene and
compressed air.
• Clean the inlet and outlet passages with
kerosene.
• Check the cap gasket for any damage.
• Check the cap for damage.
• Check the fuel bowl neck for damage.
• Check the bowl for cracks and damage.
• Assembling
• Insert the new filter element into the cap.
• Assemble the glass bowl with a new gasket.
• Fix the clip and tighten the thumb screw.
• Align the mark on the filter cap with mark on the outlet passage.
• Fix the filter cap.
• Fix the filter with the bracket on the vehicle.
• Connect the inlet hose.
• Connect the outlet hose.
• Clamp the hoses securely.
• Start the engine and check for fuel leakage.

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