2. Compression

S153081

A: INSPECTION

S153081A10

CAUTION:

After warming-up, engine becomes very hot. Be careful not to burn yourself during measurement.

1)  After warming-up the engine, turn ignition switch to OFF.

2)   Make sure that the battery is fully charged.

3)   Release fuel pressure. <Ref. to FU(SOHC)-52, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.> or <Ref. to FU(SOHCw/ oOBD)-41, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.>

4)   Remove all the spark plugs. <Ref. to IG(SOHC)-4, REMOVAL, Spark Plug.> or <Ref. to IG(SOHCw/oOBD)-5, REMOVAL, Spark Plug.>

5)   Fully open throttle valve.

6)  Check the starter motor for satisfactory performance and operation.

7)   Hold the compression gauge tight against the spark plug hole.

CAUTION:

When using a screw-in type compression

gauge, the screw (put into cylinder head spark

plug hole) should be less than 18 mm (0.71 in)

long.

8)  Crank the engine by means of the starter motor, and read the maximum value on the gauge when the pointer is steady.

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9) Perform at least two measurements per cylinder, and make sure that the values are correct.

Compression (350 rpm and fully open throttle): Standard;

1,275 kPa (13.0 kg/cm2, 185 psi) Limit;

1,020 kPa (10.4 kg/cm2, 148 psi) Difference between cylinders; 49 kPa (0.5 kg/cm2, 7 psi), or less

ME(SOHC)-23

Mechanical

IDLE SPEED