Right Cylinder Head
RIGHT
Special Tools:
CAUTION: 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.
1. If removed, install the ignition coil capacitor (1) with a M6 bolt (2) tightened to 10 Nm (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.
2. 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.
3. Clean and prepare the gasket sealing surfaces of the cylinder head and block 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.
4. 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 cylinder head gaskets are not interchangeable between the left and right cylinder heads and are clearly marked (3) with "R" for right and "L" for left.
5. Position the new cylinder head gasket (1) on the locating dowels (2).
6. 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.
7. Install the eight head bolts finger tight.
8. Tighten the cylinder head bolts in the sequence shown, following this 9 step torque plus angle method. Tighten according to the following torque values:
- Step 1: All to 30 Nm (22 ft. lbs.)
- Step 2: All to 45 Nm (33 ft. lbs.)
- Step 3: All + 75° Turn Do not use a torque wrench for this step.
- Step 4: All + 50° Turn Do not use a torque wrench for this step.
- Step 5: Loosen all fasteners in reverse of sequence shown
- Step 6: All to 30 Nm (22 ft. lbs.)
- Step 7: All to 45 Nm (33 ft. lbs.)
- Step 8: All + 70° Turn Do not use a torque wrench for this step.
- Step 9: All + 70° Turn Do not use a torque wrench for this step.
NOTE: If the hydraulic lifters are being reused, reassemble them into their original locations.
9. If removed, install the hydraulic lifters Hydraulic Lifter - Installation
NOTE: If the rocker arms are being reused, reassemble them into their original locations.
10. Install the rocker arms and camshafts Camshaft - 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.
11. Verify that the camshafts are set at TDC by positioning the alignment holes (1) vertically.
12. Install the RH cam chain guide (1) with three bolts (2). Tighten the T30 bolts (2) to 12 Nm (106 in. lbs.).
13. Install the RH cam chain tensioner (3) to the engine block with two bolts (4). Tighten the T30 bolts (4) to 12 Nm (106 in. lbs.).
14. Reset the RH cam chain tensioner (3) by pushing back the tensioner piston and installing Tensioner Pin (5).
15. Install the RH tensioner arm (6).
16. 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.
17. 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.
18. 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.
19. Install the RH Camshaft Phaser Lock (5) and tighten the oil control valves (2) and (7) to 150 Nm (110 ft. lbs.).
20. Remove the RH Camshaft Phaser Lock.
21. Remove the Tensioner Pin (6) from the RH cam chain tensioner.
22. 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).
23. 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).
24. There should be 12 chain pins (2) between the exhaust cam phaser triangle marking (1) and the intake cam phaser circle marking (3).
25. If the engine timing is not correct, repeat this procedure.
26. Install the engine timing cover, crankshaft vibration damper, upper and lower oil pans and cylinder head covers Engine Timing Cover(s) - Installation
27. Install the spark plugs. Tighten to 17.5 Nm (13 ft. lbs.) Spark Plug - Installation.
28. Connect the ignition coil capacitor electrical connector.
29. Install the upper intake manifold support bracket (2) with the studbolt (3) hand tight.
30. Install the heater core supply tube (1) with one bolt (2) tightened to 12 Nm (106 in. lbs.).
31. Install the oil level indicator (2) with bolt (1) tightened 12 Nm (106 in. lbs.).
32. Install the generator (8) Generator - Installation.
33. Install the accessory drive belt (4) Serpentine Accessory Drive Belt - Installation.
34. Install the right catalytic converter (2) onto the partially installed lower catalytic converter flange bolts (3).
35. Install the upper catalytic converter flange bolts (1) and tighten all M8 bolts to 23 Nm (17 ft. lbs.).
36. Connect the right upstream oxygen sensor connectors (4) to the main wire harness.
37. Install the upper and lower intake manifolds Intake Manifold - Installation
38. Install the PCV hose (1) to the PCV valve (2).
39. Raise and support the vehicle Maintenance.
40. If equipped, install the front skid plate and front suspension skid plate.
41. Lower the vehicle.
42. Install the electric vacuum pump (4) and mounting bracket (1) Installation.
43. Install the air inlet hose (3) to the air cleaner body and the throttle body. Tighten the clamps (1) and (4) to 4 Nm (35 in. lbs.).
44. Connect the electrical connector (2) to the Inlet Air Temperature (IAT) sensor.
45. If removed, install the oil filter and fill the engine crankcase with the proper oil to the correct level Service and Repair
46. Fill the cooling system Service and Repair.
47. Install the engine cover (1).
48. Connect the negative battery cable and tighten nut to 5 Nm (45 in. lbs.).
49. Run the engine until it reaches normal operating temperature. Check cooling system for correct fluid level Service and Repair
NOTE: 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.