PROCEDURE
INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
Turn the roller by hand to check that it turns smoothly.
If the roller does not turn smoothly, replace the No. 1 valve rocker arm sub-assembly.
INSPECT VALVE LASH ADJUSTER ASSEMBLY
Note
Keep the adjuster free from dirt and foreign objects.
Use only clean engine oil.
Place the lash adjuster into a container full of new engine oil.
Insert SST's tip into the lash adjuster's plunger and use the tip to press down on the check ball inside the plunger.
Squeeze SST and the lash adjuster together to move the plunger up and down 5 to 6 times.
Check the movement of the plunger and bleed air.
| OK |
|---|
| Plunger moves up and down. |
Note
When bleeding high-pressure air from the compression chamber, make sure that the tip of SST is actually pressing the check ball as shown in the illustration. If the check ball is not pressed, air will not bleed.
After bleeding the air, remove SST. Then try to quickly and firmly press the plunger with your fingers.
| OK |
|---|
| Plunger can be pressed 3 times. |
If the plunger can still be compressed after pressing it 3 times, replace the hydraulic lash adjuster with a new one.
INSPECT CYLINDER HEAD SET BOLT
| *1 | Measuring Point |
Using a vernier caliper, measure the minimum diameter of the elongated thread at the measuring point.
| Standard outside diameter |
|---|
| 10.85 to 11.00 mm (0.427 to 0.433 in.) |
| Minimum outside diameter |
|---|
| 10.6 mm (0.417 in.) |
| Measuring point |
|---|
| 90 mm (3.543 in.) for intake side bolt |
| 85 mm (3.346 in.) for exhaust side bolt |
If the diameter is less than the minimum, replace the cylinder head bolt.
Tech Tips
If a visual check reveals no excessively thin areas, check the center of the bolt (see illustration) and find the area that has the lowest diameter.
INSPECT CAMSHAFT
Inspect the bank 1 camshaft Click here.
Inspect the bank 2 camshaft Click here.
INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
Inspect the bank 1 camshaft timing gear Click here.
Inspect the bank 2 camshaft timing gear Click here.
INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
Inspect the bank 1 camshaft timing exhaust gear Click here.
Inspect the bank 2 camshaft timing exhaust gear Click here.
INSPECT CHAIN SUB-ASSEMBLY
INSPECT NO. 2 CHAIN SUB-ASSEMBLY
INSPECT CRANKSHAFT TIMING GEAR
INSPECT CRANKSHAFT TIMING SPROCKET LH
INSPECT NO. 1 CHAIN TENSIONER ASSEMBLY
INSPECT NO. 2 CHAIN TENSIONER ASSEMBLY
INSPECT NO. 3 CHAIN TENSIONER ASSEMBLY
INSPECT CHAIN TENSIONER SLIPPER
INSPECT NO. 1 CHAIN VIBRATION DAMPER
INSPECT CYLINDER HEAD SUB-ASSEMBLY
INSPECT CAMSHAFT OIL CLEARANCE
Inspect the bank 1 camshaft oil clearance Click here.
Inspect the bank 2 camshaft oil clearance Click here.