Legacy F4-2.5L SOHC (2003)
4. Move washer tank to forward.
5. Disconnect spark plug cords from spark plugs (#2 and #4 cylinders).
6. Disconnect PCV hose from rocker cover (LH).
7. Remove bolts, then remove rocker cover (LH).
9. Set #1 cylinder piston to top dead center of compression stroke by rotating crankshaft pulley clockwise.
NOTE: When arrow mark (A) on camshaft sprocket (LH) comes exactly to the top, #1 cylinder piston is brought to the top dead center of
compression stroke.
10. Measure #1 cylinder valve clearance by using thickness gauge.
NOTE:
^
Insert the thickness gauge in as horizontal a direction as possible with respect to the valve stem end face.
^
Measure exhaust valve clearances while lifting up the vehicle.
Valve clearance:
Intake; 0.20 +/- 0.02 mm (0.0079 +/- 0.0008 inch)
Exhaust; 0.25 +/- 0.02 mm (0.0098 +/- 0.0008 inch)
11. If necessary, adjust the valve clearance.
12. Similar to measurement procedures used for #1 cylinder, measure #2, #3 and #4 cylinder valve clearances.
NOTE:
^
Be sure to set cylinder pistons to their respective top dead centers on compression stroke before measuring valve clearances.
^
To set #3, #2 and #4 cylinder pistons to their top dead centers on compression stroke, turn crankshaft pulley clockwise 90° at a time starting