1.Disconnect negative battery cable. Remove spark plugs. Raise and support vehicle. Remove catalytic converter. Remove splash shield. Rotate crankshaft to TDC of No. 1 cylinder. Install TDC Timing Peg (T97P-6000-A) in hole at lower right of block. See Fig. 1 .
Rotate crankshaft clockwise against timing peg. See Fig. 2 . Lower vehicle.
2.Drain cooling system. Loosen water pump pulley bolts. Remove accessory drive belt. Remove drive belt idler pulley from generator mounting bracket. Remove bolts and position A/C compressor out of the way. Remove water pump pulley.
3.. Disconnect wiring connector at Variable Camshaft Timing (VCT) solenoid. Disconnect crankcase ventilation hose from fitting on valve cover. Position accelerator and speed control cables aside. Disconnect spark plug wires from spark plug wire brackets on valve covers. Remove bolt, nut and front support isolator damper. Remove upper timing belt cover. Remove valve cover bolts in a diagonal pattern working inward. Remove valve cover and gasket.
4.Raise and support vehicle. Remove center timing belt cover. Remove crankshaft pulley. Remove lower timing belt cover. Use Camshaft Alignment Timing Tool (T94P-6256-CH) to align camshafts. Install tool in slots on camshafts at rear of engine. See Fig. 3 .
5.Loosen timing belt tensioning pulley bolt. Disconnect tensioner tab from timing cover back plate to relieve tension on timing belt. If reusing timing belt, mark direction of rotation before removal. Remove timing belt.
6.Remove camshaft alignment tool. Remove bolt and intake camshaft timing sprocket. Remove VCT oil plug, bolt and exhaust camshaft sprocket.
1.Ensure crankshaft pulley timing marks are aligned. Use Camshaft Alignment Timing Tool (T94P-6256-CH) to align camshafts. Install tool in slots on camshafts at rear of engine. Ensure camshafts are aligned. Install intake timing sprocket and loosely install bolt. Rotate oil control bushing one complete turn and check for binding. Position bushing with single hole in 12 o'clock position.
The VCT sprocket has a rectangular tab on the backside of the sprocket which must align with the hole on the front face of the thrust bushing. Failure to align may result in poor engine performance.
2.Install NEW exhaust sprocket "O" ring. Install exhaust sprocket. Ensure tab on sprocket engages hole in oil control bushing. Loosely install sprocket bolt. Loosely install timing belt tensioner. Install timing belt. See Fig. 4 .
Engage timing belt tensioner tab into upper timing cover backplate. Using 6-mm Allen wrench, adjust timing belt tensioner until marks are aligned. See Fig. 5 .
Tighten bolt to 17-20 ft. lbs. (22-28 N.m).
NOTE: Camshaft must be held stationary with an open end wrench. DO NOT use alignment tool to hold camshaft in position, as damage to camshaft may occur.
3.Tighten intake camshaft sprocket bolt to 50 ft. lbs. (68 N.m). Tighten exhaust camshaft sprocket bolt to 36 ft. lbs. (50 N.m). Remove camshaft alignment tool and timing peg. Retighten exhaust camshaft sprocket bolt to 85-92 ft. lbs. (115-125 N.m). Install Variable Cam Timing (VCT) oil plug, if necessary.
4.Ensure second crankshaft timing mark is aligned with raised mark on oil pan. Position crankshaft just prior to TDC. Install TDC timing peg. Rotate crankshaft clockwise against peg. Ensure camshafts are aligned. If crankshaft and camshaft are misaligned, repeat procedure until alignment is correct.
5.When alignment is correct, complete installation by reversing removal procedure. When installing valve cover, clean gasket mating surfaces before installing NEW gasket. Install and tighten valve cover bolts in a diagonal pattern starting from the inside working outward. Tighten all nuts and bolts to specification.
Sunday, November 9th, 2008 AT 6:50 PM