Valve Clearance: Adjustments

3MZ-FE ENGINE MECHANICAL: VALVE CLEARANCE: ADJUSTMENT

ADJUSTMENT

1. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH

2. REMOVE FRONT WIPER ARM AND BLEND ASSEMBLY RH

3. REMOVE HOOD TO COWL TOP SEAL

4. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY

5. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

6. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

7. REMOVE NO. 2 ENGINE ROOM SIDE COVER LH Removal

8. REMOVE FRONT WHEEL RH
9. REMOVE NO. 1 ENGINE UNDER COVER Removal

10. SEPARATE FRONT FENDER LINER RH Removal

11. REMOVE FRONT FENDER APRON SEAL RH Removal

12. DRAIN COOLANT (for Engine) Service and Repair

13. DRAIN ENGINE OIL Replacement

14. REMOVE AIR CLEANER CAP SUB-ASSEMBLY Removal

15. REMOVE AIR CLEANER CASE SUB-ASSEMBLY Removal

16. REMOVE EMISSION CONTROL VALVE SET Removal

17. REMOVE INTAKE AIR SURGE TANK Removal

18. DISCONNECT INLET RADIATOR HOSE
19. REMOVE IGNITION COIL ASSEMBLY Removal

20. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

(a) Remove the 2 engine wire harness clamps.
(b) Remove the 3 nuts and disconnect the engine wire harness.

(a) Using an E6 "TORX" socket wrench, remove the 2 bolts and disconnect the engine wire harness protector.

(b) Remove the 2 engine wire harness clamps.
CAUTION: Wear insulating gloves.

(d) Remove the 9 bolts and the cylinder head cover.
22. INSPECT VALVE CLEARANCE

(a) Turn the crankshaft pulley, and align the timing notch with the timing mark "0" of the No. 1 timing belt cover.
(b) Check that the valve lifters on the No. 1 cylinder (IN and EX) are both loose.
If not, turn the crankshaft 1 revolution (360°) and align the mark as above.

(c) Check the valves indicated in the illustration.
(1) Using a feeler gauge, measure the clearance between the valve lifter and the camshaft.
Valve clearance (Cold):
Intake
0.15 to 0.25 mm (0.0059 to 0.0098 in.)
Exhaust
0.25 to 0.35 mm (0.0098 to 0.0138 in.)
(2) Record out-of-specification valve clearance measurements. They will be used later to determine the required replacement adjusting shim.

(d) Turn the crankshaft 2/3 of a revolution (240°), and check the valves indicated in the illustration.
(1) Using a feeler gauge, measure the clearance between the valve lifter and the camshaft.
Valve clearance (Cold):
Intake
0.15 to 0.25 mm (0.0059 to 0.0098 in.)
Exhaust
0.25 to 0.35 mm (0.0098 to 0.0138 in.)
(2) Record out-of-specification valve clearance measurements. They will be used later to determine the required replacement adjusting shim.

(e) Turn the crankshaft 2/3 of a revolution (240°), and check the valves indicated in the illustration.
(1) Using a feeler gauge, measure the clearance between the valve lifter and the camshaft.
Valve clearance (Cold):
Intake
0.15 to 0.25 mm (0.0059 to 0.0098 in.)
Exhaust
0.25 to 0.35 mm (0.0098 to 0.0138 in.)
(2) Record out-of-specification valve clearance measurements. They will be used later to determine the required replacement adjusting shim.
23. ADJUST VALVE CLEARANCE

(a) Turn the camshaft so that the cam lobe faces upward.
(b) Turn the valve lifter with a screwdriver so that the notches are perpendicular to the camshaft.

(c) Using SST (A), press down the valve lifter and place SST (B) between the camshaft and valve lifter. Remove SST (A).
SST: 09248-55040
09248-05410
09248-05420

HINT:
- Apply SST (B) at a slight angle on the side marked with "9" or "7" at the position shown in the illustration.
- When SST (B) is inserted too deeply, it will get pinched by the shim. To prevent it from being stuck, insert it gently from the intake side at a slight angle.

(d) Using a screwdriver and magnetic pick-up tool, remove the adjusting shim.

(e) Using a micrometer, measure the thickness of the removed shim.
(f) Calculate the thickness of a new shim so the valve clearance comes within the specified value.

Specified value (Cold):
Intake A = B + (C - 0.20 mm (0.0079 in.))
Exhaust A = B + (C - 0.30 mm (0.0118 in.))
(g) Select a new shim with a thickness as close as possible to the calculated values.

HINT:
- Shims are available in 17 sizes in increments of 0.05 mm (0.0020 in.), from 2.50 mm (0.0984 in.) to 3.30 mm (0.1299 in.).
- Refer to new shim thickness table below.

Intake valve clearance (Cold):
0.15 to 0.25 mm (0.0059 to 0.0098 in.)
EXAMPLE:
The 2.800 mm (0.1102 in.) shim is installed, and the measured clearance is 0.450 mm (0.0177 in.).
Replace the 2.800 mm (0.1102 in.) shim with a new No. 12 shim.

New shim thickness mm (in.)

HINT: New shims have the thickness in millimeters imprinted on the face.

Exhaust valve clearance (Cold):
0.25 to 0.35 mm (0.0098 to 0.0138 in.)
EXAMPLE:
The 2.800 mm (0.1102 in.) shim is installed, and the measured clearance is 0.450 mm (0.0177 in.).
Replace the 2.800 mm (0.1102 in.) shim with a new No. 10 shim.

New shim thickness mm (in.)

HINT: New shims have the thickness in millimeters imprinted on the face.

(h) Place a new adjusting shim on the valve lifter with imprinted number facing down.
(i) Press down the valve lifter with SST (A), and remove SST (B).
SST: 09248-55040
09248-05410
09248-05420
(j) Recheck the valve clearance.
24. INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY
(a) Install a new cylinder head cover gasket to the cylinder head cover sub-assembly.

(b) Apply seal packing to the cylinder head as shown in the illustration.
Seal packing:
Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent

NOTE:
- Remove any oil from the contact surface.
- Install the cylinder head cover within 3 minutes after applying seal packing.
- Do not start the engine within 2 hours after installing.

(c) Install the cylinder head cover with the 9 bolts. Tighten the bolts uniformly in several steps.
Torque: 12 Nm (122 kgf-cm, 9 ft-lbf)

(d) Install the engine wire harness with the 3 nuts and 2 clamps.
Torque: 8.4 Nm (85 kgf-cm, 74 in-lbf)
25. INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY LH
(a) Install the a No. 2 cylinder head cover gasket to the cylinder head cover sub-assembly LH.

(c) Install the cylinder head cover with the 9 bolts. Tighten the bolts uniformly in several steps.
Torque: 12 Nm (122 kgf-cm, 9 ft-lbf)

(d) Install the 2 brackets with the 2 bolts.

(e) Install the 2 engine wire harness clamps.
CAUTION: Wear insulating gloves.

(f) Using an E6 "TORX" socket wrench, install the engine wire harness protector with the 2 bolts.
Torque: 8.4 Nm (85 kgf-cm, 74 in-lbf)
26. INSTALL IGNITION COIL ASSEMBLY Installation

27. CONNECT INLET RADIATOR HOSE
28. INSTALL INTAKE AIR SURGE TANK Installation

29. INSTALL EMISSION CONTROL VALVE SET Installation

30. INSTALL AIR CLEANER CASE SUB-ASSEMBLY Installation

31. INSTALL AIR CLEANER CAP SUB-ASSEMBLY Installation

32. ADD ENGINE OIL
33. ADD COOLANT (for Engine) Service and Repair

34. INSPECT FOR ENGINE COOLANT LEAK (for Engine) Testing and Inspection

35. INSPECT FOR OIL LEAK
36. INSTALL FRONT FENDER APRON SEAL RH Installation

37. INSTALL FRONT FENDER LINER RH Installation

38. INSTALL NO. 1 ENGINE UNDER COVER Installation

39. INSTALL FRONT WHEEL RH
40. INSTALL NO. 2 ENGINE ROOM SIDE COVER LH Installation

41. INSTALL OUTER COWL TOP PANEL SUB-ASSEMBLY

42. INSTALL WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

43. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY

44. INSTALL HOOD TO COWL TOP SEAL

45. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY RH

46. INSTALL FRONT WIPER ARM AND BLADE ASSEMBLY LH