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ENGINE2.2LDICOR
Hydraulic lash adjuster
Hydraulic lash adjuster uses Engine oil pressure for its
operation. In case of a freshly assembled Engine, do
not run for a long time; there are chances of valve train
noise / tappet noise appearing when engine is started.
There is no danger of damage to other components if
engine is run for few minutes on no load condition.
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
l
Raise the Engine RPM to 500 without load (Vehicle
stationary) to bleed the hydraulic chamber of HLA.
The noise should disappear in 15-30 seconds.
l
If the noise still persists, run the engine further
under same condition (no load @ 500 RPM) for
several minutes. The noise should disappear in 3
to 30 mins, in few cases.
l
In a very rare case if still noise is heard, the HLA
stuck in compressed condition needs to be
replaced.
Cylinder head bottomand top views