Mitsubishi Eclipse. Manual - part 116
ON-VEHICLE SERVICE
TSB Revision
ENGINE MECHANICAL <3.0L>
11C-13
If there is a change in the level of abnormal noise, suspect a
tapping noise due to worn crankshaft bearing or connecting
rod bearing. (In this case, the lash adjuster is in good
condition.)
4. After completion of warm-up, run the engine at idle to check
for abnormal noise.
If the noise is reduced or disappears, clean the lash adjuster
(Refer to GROUP 11D, Engine Overhaul <3.0L>
− Rocker
Arms and Camshaft
− Inspection
.) As it is
suspected that the noise is due to seizure of the lash
adjuster. If there is no change in the level of the abnormal
noise, proceed to step 5.
5. Run the engine to bleed the lash adjuster system. (Refer
to
.)
6. If the abnormal noise does not disappear after air bleeding
operation, clean the lash adjuster (Refer to GROUP 11D,
Engine Overhaul <3.0L>
− Rocker Arms and Camshaft −
Inspection
.
Bleeding lash adjuster system
NOTE: Parking the vehicle on a grade for a long time may
decrease oil in the lash adjuster, causing air to enter the high
pressure chamber when starting the engine.
NOTE: After parking for many hours, oil may run out from the
oil passage and take time before oil is supplied to the lash
adjuster, causing air to enter the high pressure chamber.
NOTE: In the above cases, abnormal noise can be eliminated
by bleeding the lash adjuster system.
1. Check engine oil and add or change oil if required.
NOTE: If the engine oil level is low, air is sucked from the oil
screen, causing air to enter the oil passage.
NOTE: If the engine oil level is higher than specification, oil
may be stirred by the crankshaft, causing oil to be mixed
with a large quantity of air.
NOTE: If oil is deteriorated, air is not easily separated from
oil, increasing the quantity of air contained in oil.
AKX00328
GOOD
MINIMUM
MAXIMUM
AB
AKX00329
HIGH-
PRESSURE
CHAMBER
AB