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1.5L REVOTORQ ENGINE
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The oil filter used is a
“SPIN ON TYPE”
fitted to the
oil cooler.
The main function of oil filter is to filter all contami-
nants that get ingested into the engine, along with
traces of worn out metals from bearings and other
internal parts.
The oil enters the oil filter under pressure through
the holes on the perimeter of the base plate.
The oil then passes through the filter element where
it is "cleaned", and then flows to the central tube
and back into the engine, oil gallery.
C. Oil Strainer
The oil strainer is fitted to the oil pump, through
which the oil is drawn from oil sump and supplied to
the oil gallery. The strainer acts like a filter and
blocks the contaminants from entering the oil pump.
D. Oil Cooler
Oil cooler is heat exchanger which uses coolant to
reduce the temperature of oil coming from the oil
pump. It is mounted on the cylinder block with an
adapter.
E. Hydraulic Lash Adjuster (HLA)
Hydraulic Lash Adjuster supports the pivot end of
the rocker arm while automatically controlling the
rocker arm position to keep it in contact with the
camshafts and valve.
The range of the hydraulic lash adjuster accommo-
dates engine build tolerances; hence no adjustment
is required during engine assembly.
At all engine working conditions it maintains zero
clearance between rollers rockers and valve stem.
Maintenance
Hydraulic lash adjuster uses Engine oil pressure for
its operation. In case of a freshly assembled En-
gine, do not run for a long time; there are chances
of valve train noise appearing when the engine is
started.
HLA noise can be heard as repeated tappet like
noise when engine is running at low idle speed.
Following procedure is recommended to eliminate
the noise.
Raise the Engine speed to 1000rpm without load
(Vehicle stationary) to bleed the hydraulic
chamber of HLA. The noise should disappear
in15-30 seconds.
If the noise still persists, run the engine further
under same condition (no load at 1000 RPM) for
several minutes. The noise should disappear in 3
to 30 mins, in few cases.
In a very rare case if the noise is still heard, the
HLA is stuck in compressed position and has to
be replaced.
NOTE
There is no danger of damage to other components,
if engine is run for few minutes on no load condition
.