INSPECT ENGINE COOLANT

INSPECT ENGINE OIL

INSPECT BATTERY

INSPECT SPARK PLUG

INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

INSPECT VALVE LASH ADJUSTER NOISE

INSPECT IGNITION TIMING

INSPECT ENGINE IDLE SPEED

INSPECT COMPRESSION

INSPECT CO/HC

Inspect the engine coolant .

Inspect the engine oil .

Inspect the battery .

Inspect the spark plug .

Remove the air cleaner filter element sub-assembly.

Visually check that there is no dirt, blockage, and/or damage to the air cleaner filter element.

• HINT:

Rev up the engine several times. Check that the engine does not emit unusual noises.

If unusual noises occur, warm up the engine and idle it for over 30 minutes. Then perform the inspection above again.

If any defects or problems are found during the inspection above, perform a lash adjuster inspection.

Warm up the engine and stop the engine.

• NOTICE:

• A warmed up engine should have an engine coolant temperature of over 80°C (176°F), have an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.

When using the intelligent tester:

When not using the intelligent tester:

Remove the V-bank cover sub-assembly.

Connect the tester probe of a timing light to the wire of the ignition connector for No. 1 cylinder.

• NOTICE:

• Use a timing light which can detect the primary current.

Using SST, connect terminals TC and CG of the DLC3.

• SST
• 09843-18040

• NOTICE:

Confirm the terminal numbers before connecting them. Connecting the wrong terminals can damage the engine.

When checking the ignition timing, the transmission should be in neutral.

Using a timing light, check the ignition timing.

• Ignition timing:
• 8 to 12 BTDC at idle

Remove the SST from the DLC3.

Check the ignition timing.

• Ignition timing:
• 5 to 15° BTDC at idle

Check that the ignition timing advances immediately when the engine speed is increased.

Disconnect the timing light from the engine.

Install the V-bank cover sub-assembly.

Warm up and stop the engine.

• NOTICE:

• A warmed up engine should have an engine coolant temperature of over 80°C (176°F) and an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.

When using the intelligent tester:

When not using the intelligent tester:

Warm up and stop the engine.

• NOTICE:

• A warmed up engine should have an engine coolant temperature of over 80°C (176°F) and an engine oil temperature of 60°C (140°F), and the engine rpm should be stabilized.

Remove the cool air intake duct seal.

Remove engine room side cover LH.

Remove engine room side cover RH.

Remove the V-bank cover.

Remove the air cleaner inlet No. 1.

Remove the air cleaner cap with the air cleaner hose.

Remove the intake air surge tank.

Disconnect the 6 injector connectors.

Remove the 6 ignition coils.

Remove the 6 spark plugs.

Disconnect the 2 injector driver connectors as shown in the illustration.

Insert a compression gauge into the spark plug hole.

While cranking the engine, measure the compression pressure.

• HINT:

• Always use a fully charged battery to obtain engine speed of 250 rpm or more.

• NOTICE:

• The measurement must be done as quickly as possible.

• Standard compression pressure:
• 1.4 MPa (14 kgf*cm², 199 psi) or more

• Minimum pressure:
• 0.98 MPa (10.0 kgf*cm², 142 psi)

Perform the inspection above for each cylinder.

• Difference between each cylinder:
• 0.1 MPa (1.0 kgf*cm², 15 psi) or less

If the cylinder compression in one or more cylinders is low, pour a small amount of engine oil into the cylinder through the spark plug hole. Then perform the first 3 steps under "inspect the cylinder compression pressure" for the cylinders with low compression.

• HINT:

Connect the 2 injector driver connectors as shown in the illustration.

Install the 6 spark plugs.

• Torque:
• 25 N*m{ 254 kgf*cm, 18 ft.*lbf}

Install the 6 ignition coils.

• Torque:
• 10 N*m{ 102 kgf*cm, 7 ft.*lbf}

Connect the 6 injector connectors.

Install the intake air surge tank.

Install the air cleaner cap with the air cleaner hose.

Install the air cleaner inlet No. 1.

• Torque:
• 5.0 N*m{ 51 kgf*cm, 44 in.*lbf}

Install the V-bank cover.

Remove the engine room side cover LH.

Remove the engine room side cover RH.

Install the cool air intake duct seal.

Start the engine.

Keep the engine speed at 2,500 rpm for approx. 180 seconds.

Insert the CO / HC meter testing probe at least 40 cm (1.3 ft) into the tailpipe during idling.

Immediately check CO / HC concentration at idle and / or 2,500 rpm.

• HINT: