Repair Procedure: Vlave Lash Adjuster Replacement

1. Remove the valve rocker arms for all cylinders.
2. Remove the valve stem cap.






3. Attach the anti-rotation tool to the crankshaft.

NOTE
Make sure that the anti-rotation tool is secured to prevent the crankshaft from turning either clockwise or counterclockwise.

4. Remove the spark plugs.






5. Attach the air lead pipe, or equivalent tool, to allow compressed air to be applied to the combustion chamber.

Torque: 10 N-m (102 kgf-cm, 7 ft-lbf)

6. Pressurize the combustion chamber. Slowly apply air pressure into the combustion chamber.

Recommended air pressure: 58 - 116 psi (4.1 - 8.2 kgf/cm2, 400 - 700 kPa)

NOTE
- Pressurize the combustion chamber slowly to prevent unexpected crankshaft rotation.
- Make sure that the anti-rotation tool is attached properly before putting air into the combustion chamber.






7. Remove the valve spring retainer lock using a valve spring removal tool or equivalent tool.

NOTE
- Be careful as the valve spring may pop out when the valve spring retainer lock is disassembled.
- Cover the oil holes on the cylinder head with shop rags to prevent the valve spring retainer lock from falling into the engine.

8. Remove the valve spring retainer.
9. Remove the valve spring.






10. Remove the lash adjuster.






11. Install the NEW lash adjuster.

NOTE
- Keep the lash adjuster free of dirt and foreign matter.
- Only use clean engine oil.

A. Place the lash adjuster into a container filled with engine oil.
B. Insert the SST's tip into the lash adjuster's plunger and use the tip to press down on the check ball inside the plunger.

SST P/N: 09276-75010-01

C. Squeeze the SST and lash adjuster together to move the plunger up and down 5 to 6 times.
D. Check the movement of the plunger and bleed the air.

OK: Plunger moves up and down.

NOTE
When bleeding the lash adjuster high-pressure chamber, make sure that the SST is actually pressing the check ball as shown in Figure 49. If the check ball is NOT pressed, air will NOT bleed.

E. After bleeding the air, remove the SST. Then try to quickly and firmly press the plunger with your fingers.

OK: Plunger is very difficult to move.

If the result is NOT as specified, repeat the bleeding procedure.






F. Install the NEW lash adjusters.

12. Install the NEW valve spring.
13. Install the NEW valve spring retainer.






14. Install the valve spring retainer locks.
A. Using the valve spring installation tool or equivalent tool, install the valve spring retainer lock.

NOTE
- The valve spring may pop out if the valve spring retainer locks are NOT installed properly.
- Cover the oil holes on the cylinder head with shop rags to prevent the valve spring retainer locks from falling into the engine.

HINT
Applying grease to the valve spring retainer locks may assist in holding them together.

B. Using a plastic hammer, tap the valve spring retainer to check that the valve spring

15. Release the air inside the combustion chamber.
16. Remove the air lead pipe or equivalent tool.
17. Proceed to replace the remaining 23 valve lash adjusters, valve springs, and valve spring retainers following steps 1 - 16 above.






18. Remove the anti-rotation tool from the crankshaft.