2002 cavalier head torque spectson head bolts, and cams bolts

/* override srp image link color and background color */ .galleryImage { background-color: #002F56; color: rgb(0, 47, 86); } Fig. 1 Front cover pry pointsFig. 2 No. 1 piston TDC positionFig. 3 No. 1 piston TDC alignmentFig. 4 Camshaft TDC alignmentFig. 5 Timing chain alignmentFig. 6 Lefthand cam phaser alignmentFig. 7 Timing chain alignment marksFig. 8 Upper intake manifold tightening sequenceFig. 9 Valve cover tightening sequence. LefthandFig. 10 Valve cover tightening sequence. Righthand Print Options Print Text Only Print Text and images Print Timing Chain, Replace Caution: The magnetic timing wheels must not come in contact with magnets or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to camshaft position sensor. 1. Disconnect battery ground cable. 2. Remove air cleaner housing assembly. 3. Remove upper intake manifold. 4. Remove valve covers. 5. Remove spark plugs, then raise and support vehicle. 6. Drain cooling system into suitable container. 7. Remove upper and lower oil pans. 8. Remove righthand engine mount bracket. 9. Remove bolts from front cover. 10. Carefully remove front cover by carefully prying at seven indicated points, Fig. 1. 11. Rotate crankshaft counterclockwise to place No. 1 position at TDC on exhaust stroke by aligning dimple on crankshaft with block/bearing junction, Fig. 2. Lefthand side cam phaser arrows should point toward each other and be parallel to valve cover sealing surface. 12. Mark rotation direction of following timing chains for reference during installation: a. Lefthand side cam chain. b. Righthand side cam chain. c. Oil pump chain. d. Primary chain. 13. Reset righthand cam chain tensioner by pushing back tensioner piston and installing tensioner pin tool No. 8514, or equivalent. 14. Reset lefthand cam chain tensioner by lifting pawl, pushing back piston and installing tensioner pin tool No. 8514, or equivalent. 15. Disengage oil pump chain tensioner spring from dowel pin, then remove oil pump chain tensioner. 16. Remove oil pump sprocket T45 retaining bolt, then remove oil pump sprocket and oil pump chain. 17. Install righthand camshaft phaser lock tool No. 10202, or equivalent. Minor rotation may be required to install camshaft phaser lock. 18. Loosen both intake oil control valves, then exhaust oil control valve. 19. Remove righthand camshaft phaser lock tool, then oil control valve from righthand side intake cam phaser. 20. Pull righthand side intake cam phaser off of camshaft, then remove righthand side cam chain. 21. Remove oil control valve, then pull righthand side exhaust cam phaser off camshaft. 22. Install lefthand camshaft phaser lock tool No. 10202, or equivalent. Minor rotation may be required to install camshaft phaser lock. 23. Loosen both intake oil control valve and exhaust oil control valve. 24. Remove lefthand camshaft phaser lock tool, then oil control valve from lefthand side exhaust cam phaser. 25. Pull lefthand side exhaust cam phaser off of camshaft, then remove lefthand side cam chain. 26. Remove oil control valve, then pull lefthand side intake cam phaser off of camshaft. 27. Reset primary chain tensioner by pushing back tensioner piston and installing tensioner pin tool No. 8514, or equivalent. Remove two T30 bolts, then primary chain tensioner. 28. Remove timing chain. 29. Reverse procedure to install, note following: a. Verify No. 1 piston is positioned at TDC by aligning dimple on crankshaft with block/bearing cap junction, Fig. 3. b. Verify camshafts are set at TDC by positioning alignment holes vertically, Fig. 4. c. Ensure timing chain plated link is located at 12 o'clock when dimple on crankshaft is aligned with block/bearing cap junction, Fig. 5. d. Position lefthand side cam phasers so that arrows point toward each other and are parallel to valve cover sealing surface, Fig. 6. e. Torque idler sprocket bolt to 18 ft. lbs. f. Torque oil control valve to 110 ft. lbs. g. Torque oil pump sprocket bolt to 18 ft. lbs. h. Ensure there are 12 chain pins between exhaust cam phaser triangle marking and intake cam phaser circle marking, Fig. 7. i. Torque upper intake manifold bolts to 80 inch lbs., in sequence, as illustrated in Fig. 8. j. Torque lefthand valve cover bolts in sequence, as illustrated in Fig. 9, to 106 inch lbs. k. Torque righthand valve cover bolts in sequence, as illustrated in Fig. 10, to 106 inch lbs. l. Torque timing chain tensioner to 106 inch lbs. m. Torque timing chain guide to 106 inch lbs.
Print - As Shown Print - Fit To Page / 1

• Fig. 1 Front cover pry points
• Fig. 2 No. 1 piston TDC position
• Fig. 3 No. 1 piston TDC alignment
• Fig. 4 Camshaft TDC alignment
• Fig. 5 Timing chain alignment
• Fig. 6 Lefthand cam phaser alignment
• Fig. 7 Timing chain alignment marks
• Fig. 8 Upper intake manifold tightening sequence
• Fig. 9 Valve cover tightening sequence. Lefthand
• Fig. 10 Valve cover tightening sequence. Righthand

follow this link for the bolt torques and i would get a good workshop manual for the rest of your work as will be complicated and must be done in precisely the correct order
http://www.speedwayautoparts.com/index35.htm

I am assuming that you have the 2.2L OHV engine (most do). If you have a timing chain problem, you may want to think about this....this engine is prone to timing chain tensioner breakage. This causes the timing chain to jump out of time. This will often cause the pistons to slam into the valves in the aluminum head, causing valve damage. If you decide to replace the timing set, insure that you get the chain, both gears, and a new tensioner. Install them and set the timing back to correct specs. THEN, perform a compression check of all cylinders BEFORE attempting to start the car. If there is uneven compression, you will need to pull the cylinder head and have it repaired or replaced before you can operate the vehicle. This is a tricky job. Aluminum heads are easy to warp and/or crack. You will need to replace all the cylinder head bolts when you replace the head as they are special bolts that are designed for one-time use as they have a stretch factor built into them. Remember to use thread sealant on those head bolts that extend into the water jacket or you will have coolant leakage. And most, important, USE A TORQUE WRENCH that is in good working order when tightening the head bolts. Be SURE to follow the correct pattern and torque settings or you will have problems.

DeVille, Eldorado, Seville 1999-2005

• REMOVAL & INSTALLATION

Cylinder Head

Print

Removal & Installation

Left Side

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Properly relieve the fuel system pressure.
4. Remove or disconnect the following:
   
   Negative battery cable Exhaust manifold Alternator Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Power steering return hose retaining bolt from the cylinder head 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket.
   
5. Clean the head mating surfaces.

To install:

Fig. Left cylinder head bolt torque sequence-4.6L engine

1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
2. Torque the M11 bolts in sequence as follows:
   1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees
   2. Step 2: Turn an additional 60 degrees
   3. Step 3: Turn an additional 60 degrees (total 190 degrees)
   
   
3. Torque the M6 bolts to 106 inch lbs. (12 Nm)
4. Install or connect the following:
   
   Power steering return hose retaining bolt to the cylinder head and tighten to 37 ft. lbs. (50 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
   
5. Change the oil and filter.
6. Fill the cooling system.

Right Side

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Properly relieve the fuel system pressure.
4. Remove or disconnect the following:
   
   Negative battery cable Exhaust manifold Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Electrical connector from the Engine Coolant Temperature (ECT) sensor Nut attaching the coil cassette ground wire to the cylinder head Bolt attaching the exhaust crossover pipe to the cylinder head Bolt attaching the right transaxle mount bracket to the cylinder head Bolt attaching the rear transaxle brace to the transaxle Nuts attaching the rear transaxle brace to the cylinder head Rear transaxle brace 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket
   
5. Clean the head mating surfaces.

To install:

Fig. Right cylinder head bolt torque sequence- 4.6L engine

1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
2. Torque the M11 bolts in sequence as follows:
   1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees.
   2. Step 2: Turn an additional 60 degrees.
   3. Step 3: Turn an additional 60 degrees (total 190 degrees).
   
   
3. Torque the M6 bolts to 106 inch lbs. (12 Nm).
4. Install or connect the following:
   
   Rear transaxle brace over the studs located at the rear of the right cylinder head Nuts attaching the rear transaxle brace to the cylinder head, loosely Bolts attaching the rear transaxle braces to the transaxle and tighten to 37 ft. lbs. (50 Nm) Nuts attaching the rear transaxle brace to the cylinder head and tighten 37 ft. lbs. (50 Nm) Electrical connector to the ECT sensor Bolt attaching the exhaust crossover pipe to the cylinder head and tighten to 18 ft. lbs. (25 Nm) Nut attaching the coil cassette ground wire to the cylinder head and tighten to 13 ft. lbs. (17 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
   
5. Change the oil and filter.
6. Fill the cooling system.

Check this information for 1983 Datsun 280ZX 2.8L (click over image for zoom)...

Fig. 7: Cylinder head bolt removal sequence

Fig. 13: Head bolt torquing sequence-1970-83 models

After repair job, temporarily install and tighten the two center (right and left) cylinder head bolts to 14 ft. lbs. (18 Nm).

Install the camshaft sprocket together with the timing chain onto the camshaft. Make sure that the marks made earlier, line up. If the chain will not stretch over the sprocket, the problem lies in the tensioner. Refer to the Timing Chain removal and installation procedure for the timing procedure, if necessary.

Install the cylinder head bolts. Note that two lengths are used. Tighten the bolts in sequence.
1970-71 models:
Tighten the bolts to 33 ft. lbs. (43 Nm)
Tighten the bolts to 47 ft. lbs. (61 Nm)

1972 models:
Tighten the bolts to 47 ft. lbs. (61 Nm)
Tighten the bolts to 55 ft. lbs. (71 Nm)

1973-83 models:
Tighten the bolts to 30 ft. lbs. (39 Nm)
Tighten the bolts to 44 ft. lbs. (57 Nm)
Tighten the bolts to 54-61 ft. lbs. (70-79 Nm)

To complete the installation, reverse the removal procedures. Adjust the valves to a preliminary COLD clearance of 0.2mm for the intake and 0.25mm for the exhaust. Operate the engine until it is at normal operating temperature, retighten the head bolts (loosen them slightly and retighten to the final torque figure) and adjust the valves to the HOT clearance specifications.

Hope this helps; remember to rating this answer and leave some testimonial comment about this.

To Install:

1. Install or connect the following:
   • Timing chain drive sprocket to crankshaft
     1. Rotate the crank so the mark on the sprocket is at the 5 o'clock position
2. Assemble chain to the intake camshaft sprocket alignment copper link to the "INT" diamond timing mark on the camshaft sprocket
   
   NOTE: When lowering the timing chain rotate the assembly 90° to allow the chain to fall between the cylinder block bosses then rotate the assembly back so the camshaft sprocket is facing forward.
   
   
   
3. Lower the assembly through the chain housing opening on top of the cylinder head. Use care to ensure that the chain goes around both sides of the cylinder block bosses NOTE: The crankshaft sprocket timing mark will be at approximately the 5 o'clock position.
   
4. Route chain around crankshaft sprocket and align silver link to the timing mark
   
   NOTE: The camshaft sprocket bolts are not reusable; they are torque-to-yield and must be discarded to prevent premature failure.
   
5. Install or connect the following:
   • Intake camshaft sprocket loosely onto the intake camshaft then install the new camshaft sprocket bolt finger tight NOTE: It is not necessary to align the sprocket-to-camshaft offset notch at this time.
     
   • Adjustable timing chain guide through the opening on top of the cylinder head then install the chain guide bolt; torque to 89 lb-in. (10 Nm)
     
     
     
     
   • Exhaust camshaft sprocket loosely onto the exhaust camshaft with the timing mark on the sprocket aligned with the silver link then install a new camshaft sprocket bolt finger tight
   NOTE: It is not necessary to align the sprocket-to-camshaft offset notch at this time.
   NOTE: The camshaft sprocket bolts are not reusable; they are torque-to-yield and must be discarded to prevent premature failure.
   
6. Align the camshaft sprocket-to-camshaft then tighten the camshaft bolt using the following procedure:
   
   NOTE: Do not rotate either camshaft more than 1/2 turn in either direction with the crankshaft at Top Dead Center (TDC). To do so may cause valve to piston contact resulting in a damaged valve and/or a damaged piston.
   
   • Ensure that the sprocket timing mark is at the 5 o'clock position
   • Rotate the intake camshaft using a 24mm wrench on the flats of the camshaft until the sprocket-to-camshaft alignment notch seats
   • When the sprocket seats on the camshaft tighten the sprocket bolt finger tight
   • Rotate exhaust camshaft using a 24mm wrench on the flats of the camshaft until the sprocket-to-camshaft alignment notch seats
   • When the sprocket seats on the camshaft tighten the sprocket bolt finger tight
7. Verify that all colored links are aligned with the appropriate marks on the camshaft and crankshaft sprockets NOTE: If they are not repeat steps 1C through 4.
   
8. Install the fixed timing chain guide and bolts; torque to 89 lb-in. (10 Nm)
9. Install the fixed timing chain guide bolt access hole plug; torque to 30 lb-ft. (40 Nm)
10. Install upper timing chain guide and bolts; torque to 89 lb-in. (10 Nm) NOTE: Use a 24mm wrench to support the camshaft while applying torque to the camshaft sprocket bolt. Do not torque the camshaft bolts against the timing chain as it may damage the timing chain.
    
11. Torque the intake and exhaust camshaft sprocket bolts; torque as follows:
    • First Pass: 63 lb-ft. (85 Nm)
    • Second Pass: Turn an additional 30° using a torque angle gauge
12. Install the sealing ring and tensioner assembly; torque to 55 lb-ft. (75 Nm)
13. Install or connect the following:
    • Timing chain oil nozzle and bolt; torque to 89 lb-in. (10 Nm)
    • Camshaft cover assembly
    • Engine front cover
    • Negative battery cable; torque to 13 lb-ft. (17 Nm)

yes, air intake, intake manifold and exhaust manifold. This is not a job for a novice. If engine has overhead cam, then cam chain/belt must also be removed. Rocker arms must be loosened to allow valves to close. Note position of timing gear in case cam rotates while chain/belt is off. Camshaft must be properly timed to the crankshaft on reassembly.
Head should be checked for warping and cracks. Follow torque instructions carefully when reinstalling the head.

REMOVAL & INSTALLATION NOTE: The manufacturer recommends that the entire powertrain be removed from the vehicle before removing the cylinder heads.

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Drain the cooling system.
3. Properly relieve the fuel system pressure.
4. Remove or disconnect the following:
   • Negative battery cable
   • Powertrain assembly
   • Intake manifold
   • Cam covers
   • Harmonic balancer
   • Timing chain front cover
   • Oil pump
   WARNING
   Align all timing marks before performing the next step.
   • Chain tensioner from the timing chain
   • Cam sprockets
   NOTE: The timing chain remains in the chain case.
   • Timing chain guides, access for the retaining screws is through the plugs at the front of the cylinder head
   • Water crossover
   • Exhaust manifold
   • Cylinder head bolts by reversing the torque sequence
   • Cylinder head and discard the gasket
   WARNING
   With the camshafts remaining in the cylinder head some valves will be open at all times. Do not rest the cylinder head on a flat service with the cylinder face down, or valve damage will result. NOTE: Clean all gasket mating surfaces. Clean the head bolt holes in the crankcase. WARNING
   Be careful when cleaning aluminum gasket surfaces to prevent damage to the sealing surfaces.
   
5. Check the cylinder head for warpage; it must be less than 0.002 in. (0.05mm). If the cylinder head was resurfaced, the dimension between the combustion chamber gauge pad and the deck surface must be at least 10.5mm. To install: NOTE: Refer to Section 1 of this manual for the cylinder head torque sequence illustration. The illustration is located after the Torque Specification Chart.
   
6. Install or connect the following:
   • New cylinder head gasket
   • Cylinder head, lubricate the bolts with engine oil
7. Torque the M11 bolts, in sequence, as follows:
   1. Step 1: 22 ft. lbs. (30 Nm).
   2. Step 2: Turn an additional 60 degrees.
   3. Step 3: Turn an additional 60 degrees (total 180 degrees).
8. Torque the M6 bolts to 106 inch lbs. (12 Nm).
9. Set the camshaft timing
10. Camshaft guide bolt access hole plugs in the cylinder heads. The plugs should be seated and snug
11. Install or connect the following:
    • Intake cam covers
    • Oil pump
    • Timing chain front cover
    • Harmonic balancer
    • Cam sprockets
    • Chain tensioner to the timing chain
    • Timing chain guides
    • Intake manifold
    • Water crossover
    • Exhaust manifold. Torque the nuts to 22 ft. lbs. (30 Nm) or the bolts to 18 ft. lbs. (25 Nm).
    • Powertrain assembly
    • Negative battery cable Fig. 1: Minimum head resurface dimension
      
    
    
12. Fill the cooling system.
13. Evacuate and charge the air conditioning system.
14. Run the engine and check for leaks.

Good luck with that, it's a big job. There are no external timing marks on the crankshaft pulley, if fact the pulley is not even keyed to the crank. The best way is to remove the timing cover to gain access to the chain tensioner, crankshaft mark and balance shaft mark, you'll need a good three jaw puller to get the pulley off it's a tight press fit. There are darken links on the timing chain that have to all line up with the marks on the cam sprockets, crankshaft and balance shaft. If you try to do it without pulling the timing cover and you let any slack in the timing chain the balance shaft will most likely be out of time. I have the engine out of the car and it's still a big job, I don't know if it's even possible to do with engine in the car. There are 3 small bolts down in the area where the timing chain is, don't forget to take those out. You don't need to remove the cams to get the head bolts out. They tell you to use special tools to keep the cams from turning once chains are removed, a piece of 3/8" flat steel or aluminum plate works. On the back end of the cams there is a flat machined on all the cams when the timing marks are lined up those flats are all in a line. You slip the flat plate under the cams, you may want drill a hole in the plate and bolt it down with the valve cover bolt at the end of the head. I bought a Haynes Manual for that car, it's not the best, but it gives you most of the information you need. Make sure you get all the gook out of the bolt holes use blow gun with a long line on it, like a piece brake line. Spray some brake parts cleaner or carb cleaner in the hole then blow them dry. Oil the threads and the washers or use anti-sieze. When you torque the head bolts it say's to torque them to 22 ft.lbs. and then turn the bolts another 60+60+60 degrees totaling 180 degrees or a half turn. Good luck!

Cylinder head torque Step 1 Bolts 1-8 40 lb ft. Bolts 9-10 30 lb ft Step 2 Tighten all bolts an additional 90 degrees. Note this info cam from Mitchel These bolts are torque to yield meaning they must be replaced after torquing once. In other words the are single use bolts. DO NOT reuse them! Hope this helps