Engine (Sohc) - Compression Pressure Check - Mitsubishi 1989-1993 GALANT Service Manual

ENGINE <SOHC> - Service Adjustment Procedures
8 VALVE
16
(3) If any abnormal
lash adjuster.
the top dead centre of the compression.
arrow mark to check whether the rocker arm is lowered
or not.
arm at the area indicated by the 0 arrow mark.
727
above the rocker arm lash adjuster is pressed, the lash
adjuster is defective and must be replaced. When re-
placing the lash adjuster, bleed the air from all adjus-
ters and then assemble them. Then inspect with proce-
dures to
ities
NOTE
The lash adjuster can be accurately checked for de-
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fects with the leak down test.
Refer to the engine service manual for the leak
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down test and lash adjuster air bleeding procedure.
If the rocker arm is extremely hard when pressed
down, the lash adjuster is normal, so look for a different
cause of abnormal sound.
COMPRESSION PRESSURE CHECK
(1) Before inspection, verify that the engine oil, starter motor
and battery are normal. Then, perform the following.
Engine coolant temperature: 80- 95°C (176- 203°F)
l
Lights, electric cooling fan and accessories: OFF
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Transaxle: P range
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(2) Disconnect the spark plug cable.
(3) Remove all the spark plugs
(4) Disconnect the connector of the distributor.
NOTE
This will prevent the engine control module from controll-
ing the ignition and fuel injection.
TSB Revision
not eliminated by racing, check the
noise
IS
confirm that there are no abnormal-