CHK ADJ. Before removing the spark plug, use compressed air to blow away any dirt accumulated in the spark plug well

D-9

CHK ADJ

CHECKING ENGINE OIL

Before removing the spark plug, use compressed air to blow away any dirt accumulated in the spark plug well, to prevent it from falling into the cham- ber.

6. Attach

• Compression gauge

Compression gauge: 90890: 03081

7. Measure:

• Compression pressure

If it exceeds the maximum pressure allowed, then inspect the cylinder head, valve surfaces and pis- ton crown for carbon deposits.

If it is below the minimum pressure, then squirt a few drops of oil into the affected cylinder and measure again.

Follow the table.

COMPRESSION PRESSURE MEASUREMENT /

CHECKING ENGINE OIL / ENGINE OIL REPLACEMENT

Compression pressure (with oil applied into cylinder)
Reading	Diagnosis
Higher than without oil	Wom or damaged pistons —( repairs requiredr
Same as without oil	Possible defective ring(s), valves cylinder head gasket, or piston—(repairs required

-10º 0º 10º 20º 30º 40ºC

SAE 10W/30 SAE 10W/40

SAE 20W/40 SAE 20W/50

Дата добавления: 2014-12-23