Cylinder Head: Installation: Right
The magnetic timing wheels (1) must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor.
- If removed, install the ignition coil capacitor (1) with a M6 bolt (2) tightened to 10 N.m (89 in. lbs.).
CAUTION:
The cylinder head bolts are tightened using a torque plus angle procedure. The bolts must be examined BEFORE reuse. If the threads are necked down the bolts must be replaced.
NOTE:Typical cylinder head bolt shown in illustration.
- Check cylinder head bolts for necking by holding a scale or straight edge against the threads. If all the threads do not contact the scale (2) the bolt must be replaced.
CAUTION:
When cleaning cylinder head and cylinder block surfaces, DO NOT use a metal scraper because the surfaces could be cut or ground. Use ONLY a wooden or plastic scraper.
- Clean and prepare the gasket sealing surfaces of the cylinder head and block. Refer to ENGINE GASKET SURFACE PREPARATION .CAUTION:
Non-compressible debris such as oil, coolant or RTV sealants that are not removed from bolt holes can cause the aluminum casting to crack when tightening the bolts.
- Clean out the cylinder head bolt holes in the engine block.WARNING:
The multi-layered steel head gaskets have very sharp edges that could cause personal injury if not handled carefully.
CAUTION:The installation of the cylinder head gaskets are not interchangeable between the left and right cylinder heads. They are clearly marked (3) with "R" for right and "L" for left. They must be applied on a dry surface, without the use of any adhesives.
- Position the new cylinder head gasket (1) on the locating dowels (2).
- Position the cylinder head onto the cylinder block. Make sure the cylinder head seats fully over the locating dowels.NOTE:
Do not apply any additional oil to the bolt threads.
- Install the eight head bolts finger tight.
- Tighten the cylinder head bolts in the sequence shown in illustration, following this 9 step torque plus angle method. The torque sequence must be used for each step. Tighten according to the following torque values:
- Step 1: All to 30 N.m (22 ft. lbs.)
- Step 2: All to 45 N.m (33 ft. lbs.)
- Step 3: Retighten all to 45 N.m (33 ft. lbs.)
- Step 4: All + 125° Turn (optional angle if 125° rotation cannot be accomplished in one motion; tighten all by turning 35° followed by tightening all by turning 90°) Do not use a torque wrench for this step.
- Step 5: Loosen all fasteners in reverse of sequence shown in illustration
- Step 6: All to 30 N.m (22 ft. lbs.)
- Step 7: All to 45 N.m (33 ft. lbs.)
- Step 8: Retighten all to 45 N.m (33 ft. lbs.)
- Step 9: All + 130° Turn (optional angle if 130° rotation cannot be accomplished in one motion; tighten all by turning 40° followed by tightening all by turning 90°) Do not use a torque wrench for this step.
NOTE:For engine builds using a new block follow steps 1-9. For engine rebuilds (reuse block) follow step 6-9.
NOTE:If the hydraulic lifters are being reused, reassemble them into their original locations.
- If removed, install the hydraulic lifters. Refer to LIFTER(S), HYDRAULIC, INSTALLATION .NOTE:
If the rocker arms are being reused, reassemble them into their original locations.
- Install the rocker arms and camshafts. Refer to CAMSHAFT, ENGINE, INSTALLATION .CAUTION:
Do not rotate the camshafts more than a few degrees independently of the crankshaft. Valve to piston contact could occur resulting in possible valve damage. If the camshafts need to be rotated more than a few degrees, first move the pistons away from the cylinder heads by rotating the crankshaft counterclockwise to a position 30° before-top-dead-center. Once the camshafts are returned to their top-dead-center position, rotate the crankshaft clockwise to return the crankshaft to top-dead-center.
- Verify that the camshafts are set at TDC by positioning the alignment holes (1) vertically.
- Install the RH cam chain guide (1) with three bolts (2). Tighten the T30 bolts (2) to 12 N.m (106 in. lbs.).
- Install the RH cam chain tensioner (3) to the engine block with two bolts (4). Tighten the T30 bolts (4) to 12 N.m (106 in. lbs.).
- Reset the RH cam chain tensioner (3) by pushing back the tensioner piston and installing Tensioner Pin (special tool #8514, Pins, Tensioner) (5).
- Install the RH tensioner arm (6).
- Press the RH exhaust cam phaser onto the exhaust camshaft. Install and hand tighten the oil control valve.CAUTION:
Always reinstall timing chains so that they maintain the same direction of rotation. Inverting a previously run chain on a previously run sprocket will result in excessive wear to both the chain and sprocket.
- Drape the right side cam chain over the RH exhaust cam phaser and onto the idler sprocket (1) so that the dimple (2) is aligned with the plated link (3) on the cam chain.
- While maintaining this alignment, route the cam chain around the exhaust and intake cam phasers so that the plated links are aligned with the phaser timing marks (1). Position the right side cam phasers so that the arrows (3) point away from each other and the scribe lines (4) are parallel to the valve cover sealing surface (6). Press the intake cam phaser onto the intake cam, install and hand tighten the oil control valve (2).NOTE:
Minor rotation of a camshaft (a few degrees) may be required to install the camshaft phaser or phaser lock.
- Install the RH Camshaft Phaser Lock (special tool #10202, Locks, Camshaft/Phaser) (5) and tighten the oil control valves (2) and (7) to 150 N.m (110 ft. lbs.).
- Remove the RH Camshaft Phaser Lock (special tool #10202, Locks, Camshaft/Phaser).
- Remove the Tensioner Pin (special tool #8514, Pins, Tensioner) (6) from the RH cam chain tensioner.
- Rotate the crankshaft CW two complete revolutions stopping when the dimple (4) on the crankshaft is aligned the with the block/bearing cap junction (5).
- While maintaining this alignment, verify that the arrows on the left side cam phasers (2) point toward each other and are parallel to the valve cover sealing surface (3) and that the right side cam phaser arrows (7) point away from each other and the scribe lines (9) are parallel to the valve cover sealing surface (8).
- There should be 12 chain pins (2) between the exhaust cam phaser triangle marking (1) and the intake cam phaser circle marking (3).
- If the engine timing is not correct, repeat this procedure.
- Install the engine timing cover, crankshaft vibration damper, upper and lower oil pans and cylinder head covers. Refer to COVER(S), ENGINE TIMING, INSTALLATION .
- Install the spark plugs. Tighten to 17.5 N.m (13 ft. lbs.). Refer to SPARK PLUG, INSTALLATION .
- Install the upper intake manifold support bracket (2) with the studbolt (3) hand tight.
- Engage the wire harness retainer (3) from the intake manifold support bracket.
- Connect the ignition coil capacitor electrical connector.
- Install the heater core supply tube (1) with one bolt (2) tightened to 12 N.m (106 in. lbs.).
- Reposition the power steering pump and bracket as an assembly and install three bolts (1). Tighten bolts (1) to 25 N.m (18 ft. lbs.).
- Disengage the wire harness retainer (2) from the power steering pump.
- Install the power steering pump heat shield (1) and three bolts (2). Tighten bolts to 25 N.m (18 ft. lbs.).
- Install the accessory drive belt (7). Refer to BELT, SERPENTINE, INSTALLATION .
- Install the upper and lower intake manifolds (2) and insulator. Refer to MANIFOLD, INTAKE, INSTALLATION .
- Install the resonator (1). Refer to RESONATOR, AIR CLEANER, INSTALLATION .
- Install the air cleaner body (1). Refer to BODY, AIR CLEANER, INSTALLATION .
- Evacuate and charge the refrigerant system. Refer to PLUMBING, FRONT, STANDARD PROCEDURE .
- Install the engine cover (1).
- If removed, install the oil filter and fill the engine crankcase with the proper oil to the correct level. Refer to STANDARD PROCEDURE .
- Fill the cooling system. Refer to STANDARD PROCEDURE .
- Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
- Install the belly pan. Refer to FRAME AND BUMPERS .
- Lower the vehicle.
- Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
- Run the engine until it reaches normal operating temperature. Check cooling system for correct fluid level. Refer to STANDARD PROCEDURE .
The Cam/Crank Variation Relearn procedure must be performed using the scan tool anytime there has been a repair/replacement made to a powertrain system. For example: flywheel, valvetrain, camshaft and/or crankshaft sensors or components.