VALVE CLEARANCE ADJUSTMENT
- No valve clearance adjustment is required, as hydraulic valve lash adjusters are used. If noise exists when engine is started, operate engine at 2000-3000 RPM for 10 minutes.
- If noise stops, valve lash adjuster is operating correctly. If noise still exists, check engine oil level and oil pressure. Oil pressure should be within specification. See «ENGINE LUBRICATION SYSTEM»(ref-49061-S40351746792001011500000) under ENGINE OILING. If oil pressure is not within specification, check for defective engine components.
- If oil pressure is okay, remove valve cover. Push downward on rocker arm. If valve lash adjuster pushes downward, replace valve lash adjuster. See «ROCKER ARM & VALVE LASH ADJUSTER»(ref-49061-S22182563582001011500000) under REMOVAL & INSTALLATION. NOTE: DO NOT remove valve lash adjuster unless necessary, as "O" ring may be damaged during removal.
- If valve lash adjuster does not push downward, check for worn or damaged camshaft and components.