Valve Clearance: 2.2L

Disconnect battery ground cable. Raise and support vehicle. For inspection and adjustment of cylinders No. 1 and 3, remove right timing belt cover. Disconnect mass airflow sensor connector. Remove upper air intake duct and upper air cleaner cover as a unit. Remove air filter. Disconnect spark plug wires from cylinders No. 1 and 3. Remove right side under cover. Disconnect PCV hose from valve cover. Remove right valve cover.
For inspection and adjustment of cylinders No. 2 and 4, disconnect washer motor connectors. Disconnect washer motor hoses and plug connections. Remove washer tank bolts and secure away from work area. Disconnect spark plug wires from cylinders No. 2 and 4. Remove left side under cover. Disconnect PCV hose from valve cover. Remove left valve cover.
Set cylinder No. 1 to TDC of compression stroke by aligning arrow mark on right side camshaft sprocket pointing straight up. See Fig 1 . Using Feeler Gauge, measure cylinder No. 1 valve clearance. Adjust as needed. Tighten locknut to 86-95 INCH lbs. (9-10 N.m). See VALVE CLEARANCE SPECIFICATION table.
Set cylinders No. 3, 2 and 4 to TDC by turning crankshaft pulley clockwise until arrow on camshaft sprocket lines up. See Fig 1 . Reinstall parts in reverse order of removal.

Fig 1: Camshaft Position Identifying Cylinder Top Dead Center

Courtesy of SUBARU OF AMERICA, INC.

VALVE CLEARANCE SPECIFICATION