Subaru Workshop Manuals
Hatchback 4WD F4-1781cc 1.8L (1983)
Maintenance > Tune-up and Engine Performance Checks > Valve Clearance > System Information > Specifications > Page 733
Valve Clearance: Adjustments
NOTE: This engine uses hydraulic lash adjusters. Periodic valve clearance adjustment is not necessary. When the hydraulic lash adjusters have been
1) Perform adjustment in cold condition [coolant temperature: 20 to 40°C (68 to 104° F)].
a. Perform adjustment in two (2) sequences.
b. Raise up the bend of lock washer, loosen the lock nut, and then turn the valve rocker screw clock- wise by approx. four (4) turns using Valve
Clearance Adjuster 498767000.
c. Leave it with the valves opened for approx. 15 minutes.
d. Unscrew the valve rocker screw gradually. Then, the rocker arm stops moving due to the closing of valve. This condition is called "Zero
e. Moreover, unscrew the valve rocker screw counterclockwise by 1.5 turns.
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