KIA Amanti 2004 - Manual (Page 197)

5 11
Driving tips
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HLA (Hydraulic Lash Adjuster)
noise
The engine HLA's keep the gap
between the valve and cam at zero
regardless of the valve expansion.
Occasionally, you may hear a tempo-
rary or continuous sound (clatter)
from the engine when starting or
idling. This noise will usually go away
by following a few simple steps:
If the temporary sound occurs when
starting a cold engine:
This is a normal condition. This
sound will disappear after the engine
oil has reached normal operating
pressure.
If the sound occurs when starting the
engine after the engine has not been
operated for more than 48 hours; or
engine has been cranked excessively:
This condition may be caused by oil
draining from the HLA's. This allows
air to enter the HLA causing insuffi-
cient lubricating oil in the HLA. This
will usually disappear within 15 min-
utes with the engine running at
2000~3000 rpm. If the sound does
not disappear, have the engine oil
pressure, engine lubrication system
and HLA's inspected by an
Authorized Kia Dealer. CAUTION
Do not run the engine at more
than 3000 rpm until the noise
goes away. Damage to the
HLA's could occur.
Opirus CAN 5-1.qxd 7/8/03 2:21 PM Page 11