Note: check and adjust the clearance in the valve drive on a cold engine.
1. (3SS-GE) Remove the intake chamber.
- A) Turn away four bolts and an inlet chamber bracket No. 2.
- b) Turn away six bolts, two nuts, remove an inlet chamber and a lining.
2. (3S-FE, 4S-FE) Remove the throttle cable bracket.
- A) Disconnect the control cable from the throttle linkage.
- b) Remove the two bolts and remove the accelerator cable mounting bracket.
3. Remove the cylinder head cover.
(3S-FE, 4S-FE)
- A) Disconnect the four high voltage wires from the clamp on the cylinder head cover.
- b) Disconnect the high voltage wires at the rubber caps. Do not pull high voltage wires.
Note: Pulling or bending the wires may cause internal damage.
- V) Disconnect the two crankcase ventilation hoses from the intake manifold and cylinder head cover.
- G) Disconnect the power steering pump fluid return hose from the harness guard.
- d) Remove the two wire harness protection clips from the timing belt cover No. 2 bolts in the sequence shown in the figure.
- e) Remove four nuts, spark plug tube seal, cylinder head cover and gasket.
Note: For correct installation, arrange the spark plug tube seals in the order of removal to minimize the possibility of oil leakage.
(3S-GE)
- A) Turn away screws, washers and a cover of a head of the block of cylinders, linings.
3 Set the piston of cylinder No. 1 to TDC on the compression stroke.
- A) Rotate the crankshaft pulley and align its mark with the alignment mark "0" on cover #1 of the timing belt.
- b) Check that the valve lifters for cylinder #1 are free and the valve lifters for cylinder #4 are tight.
If not, turn the crankshaft one turn (360°) and align the label as above.
4. Check up a backlash in a drive of valves.
- A) Check the clearance in the actuator of the valves indicated in the figure.
Using a feeler gauge, measure the clearance between the tappet and camshaft.
Record your valve clearance measurements. These will be used later to determine the required shim when replacing.
Valve clearance (cold engine):
- 3S-FE, 4S-FE:
- intake - 0.19-0.29 mm
- graduation - 0.28-0.38 mm
- 3S-GE:
- inlet - 0.15-0.25 mm
- graduation - 0.20-0.30 mm
- b) Rotate the crankshaft one revolution (360°) and align the labels as above.
- V) Measure the clearance in the drive of the valves indicated in the figure.
5. Adjust the valve clearance
- A) Remove the adjusting washer. Rotate the crankshaft so that the camshaft lobe is at the top.
- (3S-FE, 4S-FE) Position the pusher as shown in the illustration.
- Using a special tool (A), press the pusher and place the special tool (IN) between the camshaft and pushrod.
- Remove special tool (A)
- Remove the shim using a small screwdriver and a magnetic bar.
- b) Determine the size of the new shim using the following method:
- Using a micrometer, measure the thickness of the removed shim
- Calculate the thickness of the new shim so that the valve clearance is within the specified values.
- The thickness of the removed shim - T
- Measured valve clearance - A
- New shim thickness -N
- 3S-FE, 4S-FE:
- inlet - N \u003d T + A (- 0.24 mm)
- graduation - N \u003d T + A (- 0.33 mm)
- 3S-GE:
- inlet - N \u003d T + A (- 0.20 mm)
- graduation - N \u003d T + A (-0.25mm)
- Select a new shim with a thickness as close as possible to the design value
Note:
- (3S-FE, 4S-FE) shims have 17 sizes (thickness values) from 2.50 mm to 3.30 mm through 0.05 mm,
- (3S-GE) shims have 27 sizes (thickness values) from 2.00 mm to 3.30 mm through 0.05 mm.
- V) Install a new shim in the tappet Using the special tool (A), press the pusher, and remove the special tool (IN).
- G) Recheck valve clearance
6. Install the cylinder head cover.
(3S-FE, 4S-FE)
- A) Remove the old sealing material and apply sealant to the cylinder head as shown.
- b) Install the gasket on the cylinder head cover.
- V) Install the cylinder head cover and four spark plug tube seals by tightening the nuts.
- Tightening torque - 23 Nm
- d) Install the engine wiring harness guard by tightening the two timing belt cover #2 bolts in the reverse order of removal.
- e) Install the power steering pump fluid return hose to the wire harness guard.
- and) Connect the two crankcase ventilation hoses to the intake manifold and cylinder head cover.
- h) Install the high voltage wires in the clamp on the cylinder head cover and connect them to the spark plugs.
(3S-GE)
- A) Apply sealant to the cylinder head as shown.
- b) Install two gaskets on the cylinder head cover
- V) Install cylinder head cover, washers and tighten screws in several passes
7. (3S-FE, 4S-FE) Install the throttle cable bracket by tightening the two bolts and connect the control cables to the throttle link.
8. (3S-GE) Install the intake chamber.
- A) Temporarily tighten the #2 intake plenum bracket bolts.
- b) Install the gasket and inlet chamber, temporarily tighten the mounting bolts and nuts.
- V) Tighten bolts and nuts.
- Tightening torque - 19 Nm