2. Turn the ignition key to position "LOCK" (OFF).
3. Remove high voltage spark plug wires and ignition coils.
4. Turn out spark plugs for simplification of procedure of check.
5. Remove the cylinder head cover.
6. Turn the crankshaft clockwise until the notch on the crankshaft pulley aligns with the mark "T" on the lower timing belt cover.
Attention: do not turn the crankshaft counterclockwise.
7. By moving the rocker arms for cylinders No. 1 and No. 4 by hand, determine the cylinder whose piston is at TDC of the end of the compression stroke.
Table. Characteristics of engines.
Note: if there is a gap simultaneously in the drive of the intake and exhaust valves, then the piston of this cylinder is at the TDC of the end of the compression stroke.
8. If the piston of cylinder No. 1 is at the TDC of the end of the compression stroke, then check and adjust the clearance in the valve drive for the rocker arms indicated by white arrows (
) on the image.
A) Measure the valve clearance.
Rated value (on a warm engine):
intake valves:
- 4G15 engine - 0.25mm
- 4G93 engine - 0.20 mm
- Exhaust valves - 0.30 mm
b) If the valve clearance is not within specification, loosen the rocker arm adjusting screw locknut, and then adjust the clearance by turning the adjusting screw and measuring the clearance with a feeler gauge.
V) Tighten the rocker arm adjusting screw locknut to the specified torque while holding the adjusting screw with a screwdriver.
Tightening torque - 9±1 N.m
9. Rotate the crankshaft 360°clockwise until the notch on the crankshaft pulley aligns with the mark "T" on the lower timing belt cover.
10. If the piston of cylinder No. 4 is at the TDC of the end of the compression stroke, then check and adjust the clearance in the valve drive for the rocker arms indicated by black arrows (
) in the figure is similar to the procedure given in paragraph "8".
11. Establish a cover of a head of the block of cylinders and tighten bolts of fastening. Tightening torque 3.5 +0.5 N.m
12. Install and tighten the spark plugs to the specified torque.
Tightening torque - 25 +5 N.m
13. Install ignition coils and high voltage spark plug wires.