Valve Clearance
CAUTION:
Inspection and adjustment of valve clearance should be performed while engine is cold.
- Disconnect battery ground cable. Remove engine coolant reservoir. Raise and support vehicle. For inspection and adjustment of cylinders No. 1 and 3, remove left timing belt cover. Disconnect mass airflow sensor connector (if equipped). 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 left side camshaft sprocket to straight up position. See Fig 1. Using feeler gauge, measure cylinder No. 1 valve clearance. Loosen lock nut and turn screw to adjust clearance as needed. See Fig 2. See VALVE CLEARANCE SPECIFICATION table. After adjustment, tighten lock nut to 86-95 INCH lbs. (9-10 N.m).VALVE CLEARANCE SPECIFICATION
Application Clearance In. (mm) 2.2L & 2.5L Intake .007-.009 (.18-.23) Exhaust .009-.011 (.23-.27) - Set cylinders No. 3, 2 and 4 to TDC by turning crankshaft pulley clockwise until arrow on camshaft sprocket is in correct position. See Fig 1. When adjustment is complete, reinstall components in reverse order of removal.