TSB SECTION 03: Cylinder Head: Removal

Details

WARNING: This page is about a different variant/trim than selected. Relieve fuel pressure. See FUEL PRESSURE RELEASE . Disconnect negative battery cable. Remove intake manifold. See INTAKE MANIFOLD . Remove thermostat housing. Raise and support vehicle. Remove exhaust bracket from transmission. Disconnect exhaust downpipes from manifolds. Lower vehicle. Remove coil cover and coils from spark plugs. Disconnect cam cover breather hose. Remove cam cover and gasket. NOTE: In the following step, if after setting No. 1 piston at TDC camshafts do not indicate TDC, valve timing may have been changed as per Technical Service Bulletin (TSB). If valve timing has been modified, there should be 2 punch marks on timing cover (next to camshaft position sensor). See Technical Service Bulletin Number SECTION 03.1, No. 04 POOR IDLE QUALITY - VALVE TIMING MODIFICATION , dated August, 1995. Rotate crankshaft until timing notches in camshaft flanges are pointing down. Remove 2 accessible camshaft sprocket mounting bolts (per camshaft) and lock tabs. Rotate crankshaft until Timing Gauge (18G 1433) can be inserted into slot of camshaft front flange. Ensure timing marks align. CAUTION: DO NOT rotate crankshaft while camshaft sprocket is disconnected from camshaft. Serious damage to valve train components may occur. Remove remaining camshaft sprocket mounting bolts and lock tabs from camshafts. Remove tensioner valve clamp bolt, and swing clamp away from center of chain tensioner. See Figure . Remove valve from center of tensioner. Insert 3-mm Allen wrench into center of tensioner. Turn Allen wrench clockwise until tensioner is in fully relieved position. Remove remaining chain tensioner bolt. Remove chain tensioner, "O" ring and gasket. Remove camshaft sprockets from camshafts. Remove cylinder head-to-engine block front nuts/bolts. Remove upper chain guide. Remove remaining cylinder head bolts. Check for wires, hoses or other components that are still attached. Remove cylinder head and gasket.