Page 134 - Mechanic Diesel - TT
P. 134
MECHANIC DIESEL - CITS
Filters are made in the shape of round boxes, which are closed with a lid. In this lid, there are passages for entry
and exit of fuel. Diesel comes from the entry path on the sides of the element and gets cleaned and comes
out through the exhaust path through a pipe fitted in the middle. Whatever be the type of diesel filter, it is very
important to clean it from time to time, because the dirt mixed in diesel blocks the diesel passages in the filter. Due
to this, proper amount of diesel does not flow into the filter.
Types of fuel filter
Ceramic type fuel filter - This type of filter is installed between the carburetor and the fuel pump or tank. It
consists of a glass bowl, inside which there is a ceramic filter and strainer. The fuel first comes from the inlet into
the glass bowl, then passes through the strainer and is filtered and goes to the carburetor from the outlet. This
type of filters are also used in some motorcycles
Carburettor fuel filter - This filter is installed in the fuel inlet passage of the carburetor. There is a filter made of
pleated paper inside it, which is tightened by a brass union. In-line filters are also used in some places
Water separator - The water separator is installed between the diesel tank and the fuel pump. Diesel in vehicles
quickly becomes contaminated by water, because diesel absorbs water more than petrol. For this reason, water
separator is used in diesel engines. Water separator is a device to separate water from diesel. It keeps collecting
water mixed with diesel inside itself. It is installed near the fuel filter. This filter is made of paper element. It has a
transparent bowl at the bottom, which has a drain plug. Diesel water keeps forming in the separator.
From here the water mixed with diesel keeps collecting in the bowl and the diesel goes into the fuel filter. Water
is drained from the bowl from time to time through the drain plug
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CITS : Automotive - Mechanic Diesel - Lesson 31 - 38 CITS : Automotive - Mechanic Diesel - Lesson 31 - 38
