Impreza WRX Wagon F4-2.0L DOHC Turbo (2002)
Valve Clearance: Adjustments
ADJUSTMENT
CAUTION: Adjustment of valve clearance should be performed while engine is cold.
1. Measure all valve clearances.
NOTE: Record each valve clearance after it has been measured.
2. Remove the shim from valve lifter.
1. Prepare the ST.
ST 498187200 SHIM REPLACER
2. Rotate the notch of the valve lifter outward by 45°.
3. Adjust the SHIM REPLACER notch to valve lifter and set it.
NOTE: When setting, be careful the SHIM REPLACER edge does not touch shim.