Impreza WRX Wagon F4-2.0L DOHC Turbo (2002)
Valve Clearance: Testing and Inspection
INSPECTION
CAUTION: Inspection and adjustment of valve clearance should be performed while engine is cold.
1. Set the vehicle onto the lift.
2. Disconnect the ground terminal from battery.
3. Remove the air intake duct.
4. Remove one bolt which secures the timing belt cover (RH).
5. Lift-up the vehicle.
6. Remove the under cover.
7. Loosen the remaining bolts which secure the timing belt cover (RH), then remove the belt cover.
8. Lower the vehicle.
9. When inspecting #1 and #3 cylinders:
1. Pull out the engine harness connector with bracket from air cleaner upper cover.
2. Remove the air cleaner case.
3. Disconnect the spark plug cords from spark plugs (#1 and #3 cylinders).
4. Place a suitable container under the vehicle.
5. Disconnect the PCV hose from rocker cover (RH).
6. Remove the bolts, then remove the rocker cover (RH).
10. When inspecting #2 and #4 cylinders:
1. Disconnect the battery terminal, and then remove the battery and battery carrier.