Mitsubishi Stealth 1994 Import Service Manual page 321

<DOHC engine>
Crankshaft position
sensor connector
ENGINE
COMPRESSION PRESSURE CHECK
(1) Prior to inspection, check to ensure that the engine oil,
starter motor and battery are in proper condition. Place the
vehicle in the following conditions.
l
l
l
(2) Remove the spark plug cables.
(3) Remove all of the spark plugs.
(4) Disconnect the distributor (SOHC) or crankshaft position
sensor (DOHC).
NOTE
By so doing the engine control module stops performing
ignition and fuel injection.
(5) Cover the spark plug mounting holes with a waste cloth,
crank the engine, and then check for foreign substances
deposited on the waste cloth.
Caution
1. When you crank the engine, keep away from the
2. If a compression measurement is performed with
(6) Set a compression gauge in a spark plug mounting hole.
(7) Place the throttle valve in a fully opened position, and crank
the engine to measure the compression pressure.
Standard value:
Limit:
(8) Measure the compression pressure in each of the cylinders
and check that the difference in compression pressure
between the individual cylinders is less than the limit value.
Limit: max. 100 kPa (14 psi)
Engine coolant temperature: 80 - 95°C (176 - 205°F)
Lights, electric cooling fan and accessories: OFF
Transaxle: Neutral (P for A/T)
spark plug mounting holes.
water, oil, fuel, etc. in cracks in the cylinders, these
substances heated to a very high temperature will
blow off the spark plug mounting holes and could
be dangerous.
< S O H C >
<DOHC - Non Turbo>
<DOHC-Turbo>
<SOHC>
<DOHC - Non Turbo>
<DOHC-Turbo>
9-23
1,200 kPa (171 psi)
1,300 kPa (185 psi)
1,100 kPa (156 psi)
890 kPa (127 psi)
980 kPa (139 psi)
810 kPa (115 psi)