Remove cylinder head - Accord Honda Cars & Trucks

NOTE: Ford does not provide camshaft gear timing marks, or information to perform timing belt service without the special tools shown in this procedure.

REMOVAL
1. Drain engine coolant from radiator and cylinder block by removing the drain plugs.
2. Remove the intake manifold.
3. Remove exhaust manifold.
4. Remove camshafts.
5. Remove valve tappets from cylinder head, then support front of engine with wood block between crankshaft pulley and front subframe.
6. Remove righthand engine lifting eye bolt, then righthand engine lifting eye.
7. Remove power steering pump mounting bracket and cylinder head support bracket.
8. Remove camshaft timing belt tensioner pulley and front cover from front of cylinder head.
9. Remove water thermostat housing from cylinder head as follows:
a. Raise and support vehicle.
b. Disconnect crankcase ventilation tube from positive crankcase ventilation valve.
c. Disconnect upper radiator hose and radiator overflow hose from water hose connection.
d. Remove water outlet connection bolts and water hose connection from water thermostat housing.
e. Remove water thermostat and seal from water thermostat, then seal from water thermostat housing. Inspect seals for damage and replace if necessary.
10. Remove ignition coil bracket from cylinder head as follows:
a. Disconnect fuel charging wiring or engine control sensor wiring from ignition coil, then ignition wires by squeezing locking tabs and twisting while pulling upward.
b. Remove ignition coil bolts or screws, then coil.
c. Remove ignition coil bracket.

Fig. 11 Cylinder head bolt removal sequence


11. Remove spark plugs from cylinder head, then cylinder head bolts in sequence. Discard cylinder head bolts.
12. Remove cylinder head and head gasket from cylinder block.
13. If necessary, remove lefthand engine lifting eye from cylinder head.
14. Inspect cylinder head and cylinder block, then replace components as required.

INSTALLATION
1. Reverse procedure to install, noting following:
a. Clean cylinder head intake manifold, valve cover and cylinder head gasket surfaces. Ensure flatness of cylinder head and cylinder block gasket surfaces meets specifications.

Fig. 12 Cylinder head bolt tightening sequence



b. Torque new cylinder head bolts in sequence, first to 15-22 ft lb, then to 30-37 ft lb. Finally tighten all bolts an additional 90-120° in the same sequence.

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REMOVAL

1. Drain the coolant and disconnect the upper radiator hose.
2. Remove the breather hose (between the air cleaner and the head cover).
3. Remove the air-intake hose.
4. Remove the vacuum hose, fuel hose and coolant hose.
5. Remove the cables from the spark plugs. The cables should be removed by holding the boot portion.
6. Remove the ignition coil.
7. Remove the power steering oil pump and bracket.
8. Remove the intake manifold.
9. Remove the heat protector and exhaust manifold assembly.
10. Remove the coolant pump pulley and the crankshaft pulley.
11. Remove the timing belt cover.
12. Remove the timing belt tensioner pulley.
13. Remove the timing belt.
14. Remove the head cover.


15. Remove the cylinder head assembly. The cylinder head bolts should be removed by using Special Tool, Cylinder Head Bolt Wrench (09221-32001) or equivalent, in the sequence as shown in the illustration in two or three steps.
16. Remove the gasket pieces from the cylinder block top surface and cylinder head bottom surface. NOTE: Make sure that the gasket pieces do not fall in the engine.

INSTALLATION

1. Clean all gasket surfaces of the cylinder block and the cylinder head.
2. Install a new cylinder head gasket onto the cylinder head assembly. Apply sealant to the gasket and do not reuse the old cylinder head gasket.


3. Install the cylinder head bolts. Starting at top center, tighten all cylinder head bolts in sequence as shown in illustration, using the Cylinder Head Bolt Wrench (09221 - 32001) or equivalent. Repeat the procedure, re-tightening all cylinder head bolt to the specified torque. (torque spec is Cold Engine 105-115 Nm (76-83 ft lb) )
4. Install the timing belt tensioner pulley.
5. Install the timing belt on the camshaft sprocket, making sure that the tension side is tightened by turning the camshaft sprocket in reverse, all timing marks are in alignment.
6. Adjust the timing according to "Timing Belt"
7. Install the rocker cover and tighten the bolts to the specified torque. Tightening torque: Rocker cover belt:

2.5-3.5 Nm (25-35 kg.cm, 2-3 ft. lbs.)

8. Install the timing belt cover.
9. Install the new intake manifold gasket and the intake manifold. Tighten the nuts and bolts to the specified torque.
10. Install the new exhaust manifold gasket and the exhaust manifold. Tighten the exhaust manifold attaching nuts to the specified torque.
11. Install the surge tank and tighten the nuts bolts to the specified torque.
12. Install the power steering oil pump and bracket.
13. Install the ignition coil.
14. Install the air intake hose.
15. Connect the vacuum hose, fuel hose and water hose.
16. Install breather hose.

Removal

1. Drain engine cooling system.

1. Disconnect battery ground cable (14301) .

1. Remove engine air cleaner (ACL) (9600) including air cleaner outlet tube (9B659) .

1. Loosen drive belt tensioner (6B209). Remove drive belts (8620) .

1. If LH cylinder head (6049) is being removed, perform the following:
   1. Remove oil filler cap (6766) .
   1. Remove power steering pump front mounting bracket retaining bolts.
   1. Remove generator (GEN) (10346) and belt idler pulley (8678).
   1. Remove power steering pump/generator bracket retaining bolts. Leave hoses connected, place pump/bracket assembly aside in a position to prevent fluid from leaking out.

1. If RH cylinder head is being removed, perform the following:
   1. Remove drive belts .
   1. If equipped with A/C, remove mounting bracket retaining bolts. Leave hoses connected and position A/C compressor (19703) aside.
   1. Remove positive crankcase ventilation valve (PCV valve) (6A666) .

1. Remove upper intake manifold (9424) .

1. Remove valve cover retaining bolts.

1. Remove fuel injection supply manifold (9F792).

1. Remove lower intake manifold as outlined.

1. Remove exhaust manifolds (9430) as outlined.

1. Loosen rocker arm seat retaining bolts enough to allow rocker arm (6564) to be lifted off the push rod (6565) and rotate to one side.

1. Remove push rods . Identify position of each push rod . Push rods should be installed in their original position during assembly.

1. Remove cylinder head retaining bolts and discard.

1. Remove cylinder heads .

1. Remove and discard old head gaskets (6051) .

Installation

1. NOTE: Lightly oil all bolts and stud bolt threads before installation except those specifying special sealant.
   Clean cylinder head, intake manifold , valve cover (6582) and head gasket surfaces. If cylinder head was removed for head gasket replacement, check flatness and sealing areas for scratches of cylinder head and cylinder block gasket surfaces. Refer to Section 03-00 for procedure.
2. Position new head gaskets onto cylinder block (6010) using cylinder head to block dowels (6A008) for alignment.
   
   Head Gasket
   
   
   
   
   
3. Position cylinder heads onto cylinder block .
4. CAUTION: Always use new cylinder head bolts to ensure a leak-tight assembly. Torque retention with used bolts can vary, which may result in coolant or compression leakage at the cylinder head mating surface area.
   -ft).
   
5. For 3.8L non-SC engine, tighten cylinder head retaining bolts in numerical sequence in three steps as follows:
   1. 20 Nm (15 Lb-Ft)
   1. 40 Nm (29 Lb-Ft)
   1. 50 Nm (37 Lb-Ft)
6. CAUTION: Do not loosen all of the bolts at the same time, only work on one bolt at a time or possible damage to engine or leakage may occur.
   In sequence, loosen retaining bolts two to three revolutions and retighten bolts one at a time in the following manner:
   1. Long bolts:
      • 15-25 Nm (11-18 lb-ft).
      • Tighten bolt an additional 85-95 degrees.
      • Go to next bolt in sequence.
   1. Short bolts:
      • 10-20 Nm (7-15 lb-ft).
      • Tighten bolt an additional 85-95 degrees.
      • Go to next bolt in sequence.
      
      
      
      
      
      Item Part Number Description 1 6010 Cylinder Block 2 - Locating Pin (2 Req'd) 3 N802515-S Cylinder Head Bolt (4 Req'd Each Side) 4 6049 Cylinder Head 5 N802516-S Cylinder Head Bolt (4 Req'd Each Side) 6 6A008 Cylinder Head to Block Dowel
7. NOTE: If original valve train components are being installed, a valve clearance check is not required. If a component has been replaced, perform a valve clearance check as outlined.
   Dip each push rod end in Engine Assembly Lubricant D9AZ-19579-D or equivalent meeting Ford Specification ESR-M99C80-A and install push rods in their original position.
8. For each valve, rotate crankshaft (6303) until valve tappet (6500) rests on the heel (base circle) of the camshaft lobe, before tightening rocker arm seat retaining bolts to 7-15 Nm (5-11 lb-ft) maximum.
9. Lubricate all rocker arms with Engine Assembly Lubricant D9AZ-19579-D or equivalent meeting Ford Specification ESR-M99C80-A. Final-tighten the rocker arm seat bolts to 30-40 Nm (22-30 lb-ft). For final tightening, camshaft (6250) may be in any position.
   
10. Install exhaust manifolds as outlined.
11. Install lower intake manifold as outlined.
12. Install fuel injection supply manifold .
13. Position valve cover and new valve cover gasket (6584) on cylinder head and install retaining bolts. Note location of ignition wire routing clip stud bolts. Tighten retaining bolts to 9-12 Nm (7-9 lb-ft).
14. Install upper intake manifold .Install spark plugs (12405) , if removed.
15. Connect ignition wires to the spark plugs .
16. If LH cylinder head is being installed, perform the following:
    1. Install oil filler cap.
    1. Install generator/power steering pump mounting bracket.
    1. Install generator .
    1. Install main accessory drive belt tensioner .
    1. Install power steering pump (3A674) .
1. Install power steering pump support bracket.If RH cylinder head is being installed, perform the following:
17. 1. Install positive crankcase ventilation valve .
    1. If equipped with A/C, install A/C compressor mounting brackets (2882) and A/C compressor .
18. Install drive belt and tighten to specification.
19. Connect battery ground cable .
20. Install air cleaner outlet tube.

Rocker Arm (Valve) Cover REMOVAL & INSTALLATION 2.3L 4-Cylinder Engines

1. Disconnect the negative battery cable.
2. Label and remove the spark plug wires.
3. Remove the attaching bolts for the valve cover.
4. Remove the valve cover from the cylinder head. If necessary, lightly tap the valve cover with a soft hammer to aid in removal. To install:
   
5. Thoroughly clean the valve cover and cylinder head gasket mating surfaces.
6. Install the valve cover on the cylinder head using a new gasket.
7. Tighten the valve cover bolts to 14 ft. lbs. (20 Nm) in a crisscross pattern.
8. Install the spark plug wires.
9. Connect the negative battery cable.
10. Start the engine and check for leaks. Fig. 1: Valve cover and gasket assembly
    

2.8L 6-Cylinder Engine

1. Disconnect the negative battery cable.
2. The following steps are necessary if your car has A/C and if you are removing the passenger side valve cover, if you do not need to remove the passenger side valve cover, skip them.
   1. Remove the A/C compressor belt and the compressor from the mounting bracket located on the passenger side of the engine. Do not remove the lines from the compressor.
   2. Place the compressor with the lines attached on the passenger side front shock tower and secure.
   3. Remove the compressor bracket.
3. Remove the air cleaner-to-throttle body hose.
4. Label and remove all necessary electrical and vacuum connections.
5. Remove the attaching bolts for the valve cover(s).
6. Remove the valve cover(s) from the cylinder head(s). If necessary, lightly tap the valve cover with a soft hammer to aid in removal. To install:
   
7. Thoroughly clean the valve cover(s) and cylinder head gasket mating surfaces.
8. Install the valve cover(s) on the cylinder head(s) using new gaskets.
9. Tighten the valve cover bolts to 11 ft. lbs. (15 Nm) in a crisscross pattern.
10. Install all necessary electrical and vacuum connections.
11. Install the air cleaner assembly.
12. Install the A/C bracket (if removed).
13. Install the A/C compressor and belt (if removed).
14. Connect the negative battery cable.
15. Start the engine and check for leaks.

2.3L and 2.4L 5-Cylinder, and 2.9L 6-Cylinder Engines The 2.3L and 2.4L 5-cylinder, and 2.9L 6-cylinder engines have a two-piece cylinder head, the upper half and the lower half. The upper half is basically the same as a valve cover, except that it incorporates the bearing caps for the camshafts into the underside.

1. Disconnect the negative battery cable.
2. Remove the spark plug access cover.
3. Label and remove the ignition coils and vent hoses or the distributor cap and wires if equipped.
4. Check the cam alignment before removing the cylinder head.
5. Remove the bolts attaching the upper cylinder head.
6. Remove the upper cylinder head, lightly tap with a soft hammer if necessary. To install:
   
7. Thoroughly clean the upper and lower cylinder head gasket mating surfaces.
8. Apply liquid sealing compound to the upper cylinder head mating surface. WARNING
   Use a roller or your finger to spread sealant, do not use an excessive amount of sealant, or the oil passages could become clogged.
   
9. Place the upper cylinder head onto the lower cylinder head.
10. Check the cam alignment before tightening the cylinder head.
11. Install Volvo tool number 5454 or equivalent to the upper cylinder head.
12. Tighten the nut on the tools to seat the upper cylinder head.
13. Tighten the upper cylinder head bolts, beginning from the center out to 13 ft. lbs. (17 Nm).
14. Install the ignition coils and hoses or the distributor cap and wires.
15. Install the spark plug access cover.
16. Connect the negative battery cable.
17. Start the vehicle and check for leaks. Fig. 2: Remove the clamp and detach the vent hose
    Fig. 3: Remove the spark plug cover and the plug wires or ignition coils to access the retaining bolts
    Fig. 4: Remove the retaining bolts
    Fig. 5: A light tap with a soft-faced hammer is usually required to loosen the valve cover
    Fig. 6: Carefully lift the upper cylinder head up and off the lower section. Note the integral camshaft bearing caps in the casting
    

1. Spark plugs removal

1.1. Front cylinder bank spark plugs removal:
1.1.1. Disconnect the battery from car terminals.
1.1.2. Remove the engine plastic cover.
1.1.3. Disconnect the ignition coils electrical supply cable and all three coils connectors.
1.1.4. Remove all three ignition coils screws.
1.1.5. Remove all three ignition coils out from cylinder head.
1.1.6. Remove all three spark plugs out from cylinder head (straight forward).

1.2. Back cylinder head bank spark plugs removal:
1.2.1. Remove the inlet manifold out from cylinder head.
1.2.2. Disconnect all three ignition coils connectors.
1.2.3. Remove all three ignition coils screws.
1.2.4. Remove all three ignition coils out from cylinder head.
1.2.5. Remove all three spark plugs out from cylinder head (straight forward).

2. Spark plugs installation

2.1. Refit all in reverse order.
2.2. Spark plugs tightening torque = 2,8 +/- 0,3 daN.m
2.3. Ignition coils tightening torque = 0,8 +/- 0,2 daN.m

Cylinder Head Removal & Installation 5.7L Engine To Remove:

1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove the air cleaner assembly.
4. Remove the upper radiator hose.
5. Remove both heater hoses.
6. Disconnect spark plug wires at distributor cap.
7. Remove distributor cap.
8. Remove the coolant bypass hose from the water pump.
9. Remove the drive belt. NOTE: It is not necessary to evacuate the A/C refrigerant.
   
10. Remove the A/C compressor from the mounting bracket and set it aside.
11. Remove the wiring bracket from the rear of the cylinder head.
12. Disconnect the accessory bracket and slide forward.
13. Remove the upper and lower intake manifold.
14. Remove the exhaust manifolds.
15. Remove the valve rocker arms and pushrods.
16. Remove the power steering pump pulley.
17. Disconnect the electrical connector from the power steering pump.
18. Remove nuts attaching the power steering pump to the engine.
19. Remove power steering pump mounting bracket bolts and nut.
20. Slide power steering pump/bracket assembly forward and remove stud.
21. Set power steering pump/bracket assembly aside.
22. Disconnect the wiring bracket from rear of the right cylinder head.
23. Remove the generator.
24. Remove the oil indicator tube bracket bolt.
25. Remove the generator mounting bracket.
26. Remove the sixteen cylinder head bolts.
27. Remove cylinder heads and gaskets.
28. Clean all sealing surfaces.

To Install:
Right Side NOTE: Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.
NOTE: Do not use any type of sealant on the cylinder head gasket (unless specified).

1. Clean the cylinder head bolt holes with a thread chaser and compressed air.
2. Check the cylinder head locating pins for proper installation.
3. Place a new cylinder head gasket over the engine block dowel pins.
4. Install the cylinder head to the engine block.
5. Apply sealant (GM P/N 12346004 or equivalent) to cylinder head bolt threads.
6. Install the cylinder head bolts.
   
   
7. Tighten the cylinder head bolts in sequence on the first pass.
   • Torque to: 22 ft. lbs. (30 Nm)
8. Using a torque angle meter, tighten the long bolts (1, 2, 5, 6, 9, 10 and 13) on the second pass in sequence to 75°.
9. Using a torque angle meter, tighten the medium bolts (14 and 17) on the second pass in sequence to 65°.
10. Using a torque angle meter, tighten the short bolts (3, 4, 7, 8, 11, 12, 15 and 16) on the second pass in sequence to 55°.
11. Install the valve rocker arms and pushrods.
12. Install the generator mounting bracket stud.
    • Torque to: 15 ft. lbs. (20 Nm)
13. Loosely assemble the generator mounting bracket over the stud.
14. Install all nuts and bolts finger tight.
    • Torque to: 30 ft. lbs. (41 Nm)
15. Install the generator.
16. Install the oil indicator tube bracket bolt.
17. Install the exhaust manifold.
18. Install the lower intake manifold.
19. Install the valve rocker arm covers.
20. Install the wiring bracket to the rear of the cylinder head.
21. Connect the accessory bracket.
22. Install the A/C compressor.
23. Install the drive belt.
24. Install the distributor cap.
25. Connect the spark plug wires to the distributor cap.
26. Install both heater hoses.
27. Install the upper radiator hose.
28. Install the air cleaner assembly.
29. Refill the engine coolant.
30. Connect the negative battery cable.

Left Side To Install:
NOTE: Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.
NOTE: Do not use any type of sealant on the cylinder head gasket (unless specified).
NOTE: Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.
NOTE: Do not use any type of sealant on the cylinder head gasket (unless specified).

1. Clean the cylinder head bolt holes with a thread chaser and compressed air.
2. Check the cylinder head locating pins for proper installation.
3. Place a new cylinder head gasket over the engine block dowel pins.
4. Install the cylinder head to the engine block.
5. Apply sealant (GM P/N 12346004 or equivalent) to cylinder head bolt threads.
6. Install the cylinder head bolts.
   
   
7. Tighten the cylinder head bolts in sequence on the first pass.
   • Torque to: 22 ft. lbs. (30 Nm)
8. Using a torque angle meter, tighten the long bolts (1, 2, 5, 6, 9, 10 and 13) on the second pass in sequence to 75°.
9. Using a torque angle meter, tighten the medium bolts (14 and 17) on the second pass in sequence to 65°.
10. Using a torque angle meter, tighten the short bolts (3, 4, 7, 8, 11, 12, 15 and 16) on the second pass in sequence to 55°.
11. Install the valve rocker arms and pushrods.
12. Install the power steering pump mounting bracket stud.
    • Torque to: 15 ft. lbs. (20 Nm)
13. Loosely assemble the mounting bracket over the stud.
14. Install all nuts and bolts finger tight.
    • Torque to: 30 ft. lbs. (41 Nm)
15. Install the power steering pump pulley.
16. Connect the electrical connector to the power steering pump.
17. Install the exhaust manifold.
18. Install the lower intake manifold.
19. Install the valve rocker arm covers.
20. Install the wiring bracket to the rear of the cylinder head.
21. Connect the accessory bracket.
22. Install the A/C compressor.
23. Install the drive belt.
24. Install the distributor cap.
25. Connect the spark plug wires to the distributor cap.
26. Install both heater hoses.
27. Install the upper radiator hose.
28. Install the air cleaner assembly.
29. Refill the engine coolant.
30. Connect the negative battery cable.

Check this procedure...

1. Tighten the first design cylinder head bolts as follows:
   1. M11 bolts 1st pass: in sequence to 22 ft. lbs. (30 Nm).
   2. M11 bolts 2nd pass: in sequence + 90 degrees.
   3. M11 bolts (1,2,3,4,5,6,7,8): + 90 degrees.
   4. M11 bolts (9 and 10): + 50 degrees.
   5. M8 cylinder head bolts (11,12,13,14,15) to 22 ft. lbs. (30 Nm). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.
      
2. Tighten the second design cylinder head bolts as follows:
   1. M11 bolts (1-10) 1st pass: in sequence to 22 ft. lbs. (30 Nm).
   2. M11 bolts (1-10) 2nd pass: in sequence + 90 degrees.
   3. M11 bolts (1-10): + 70 degrees.
   4. M8 cylinder head bolts (11,12,13,14,15) to 22 ft. lbs. (30 Nm). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.

Fig. Cylinder head bolt tightening sequence-4.8L, 5.3L and 6.0L engines (click for zoom)


Install the cylinder head bolts in sequence to 22 ft. lbs. (30 Nm). The bolts must be tightened once, then be tightened again in sequence in the following order:

1. Step 1: Short length bolt: (3, 4, 7, 8, 11, 12, 15, 16), plus 55 degrees.
2. Step 2: Medium length bolt: (14, 17), plus 65 degrees.
3. Step 3: Long length bolts: (1, 2, 5, 6, 9, 10, 13), plus 75 degrees.

Fig. Cylinder head bolt tightening sequence-5.0L and 5.7L engines

Cylinder Head Removal & Installation SOHC To Remove:

1. Relieve fuel system pressure.
2. Remove timing belt cover. Camshaft timing marks
   
   
3. Turn crankshaft until timing mark on front housing and the arrow "2" on the camshaft pulley align.
4. Loosen lock bolt on tensioner.
5. Pry tensioner away from timing belt and tighten lock bolt to relieve tension on the timing belt.
6. Remove timing belt from camshaft pulley.
7. Disconnect battery negative cable.
8. Remove 3 bolts that secure accelerator cable and air intake hose to cylinder head cover.
9. Detach accelerator cable and place off to side.
10. Remove the following;
    • Air hose
    • Air ISC air hose
    • Breather hose
    • Vacuum hose from air intake hose
11. Disconnect mass air flow sensor electrical connector.
12. Remove air intake hose.
13. Remove PCV valve from cylinder head cover.
14. Remove ISC air hose from idle speed actuator.
15. Remove air hose from behind intake manifold.
16. Remove 2 screws from high tension wire protectors.
17. Detach wire loom from holder at rear of cylinder head cover.
18. Detach vacuum tube at rear of cylinder head cover.
19. Remove vacuum pipe. Cylinder Head Cover
    
    
20. Remove 7 cylinder head cover bolts.
21. Remove cylinder head cover and gasket.
22. Disconnect 2 ignition coil electrical connectors.
23. Disconnect 2 fuel injection electrical connectors at rear of cylinder head.
24. Disconnect the following electrical connectors;
    • Oxygen sensor
    • Throttle position sensor
    • Idle speed actuator
    • Oil pressure switch
    • EGR vacuum solenoid valve at intake manifold
25. Disconnect heater hose from elbow.
26. Disconnect brake booster vacuum hose and cruise control vacuum hose from surge tank.
27. Detach wire harness from rear of cylinder head.
28. Disconnect purge control solenoid vacuum hose from intake manifold.
29. Disconnect fuel hose from fuel connector assembly.
30. Remove grounding bracket.
31. Remove 4 bolts and intake manifold bracket.
32. Remove starter.
33. Detach water bypass hose from bypass pipe.
34. Disconnect water hoses from oil cooler.
35. Disconnect fuel hose from fuel pipe.
36. Remove exhaust manifold heat shield.
37. Remove exhaust flange nuts and front exhaust bracket bolt.
38. Lower exhaust system. Cylinder head bolt loosening sequence
    
    
39. Loosen cylinder head bolts in 3 steps in proper sequence.
40. Remove cylinder head bolts and washers.
41. Remove cylinder head, intake manifold and exhaust manifold as an assembly.

To Install:

1. Install NEW cylinder head gasket.
2. Install cylinder head, intake manifold and exhaust manifold as an assembly.
3. Tighten cylinder head bolts in 3 steps in reverse sequence that was used during removal. Tighten bolts to 62 ft lb (84 Nm).
4. Install front exhaust bracket bolt. Tighten bolt to 20 ft lb (27 Nm).
5. Install NEW lower exhaust flange gasket and 3 nuts. Tighten nuts to 24 ft lb (31 Nm).
6. Install exhaust manifold heat shield. Tighten nuts to 35 in lb (4 Nm).
7. Connect fuel hose to pipe.
8. Connect 2 hoses to oil cooler.
9. Attach water bypass hose to bypass pipe.
10. Install starter and bolts. Tighten bolts to 34 ft lb (46 Nm).
11. Install intake manifolds bracket and 4 bolts. Tighten bolts to 32 ft lb (45 Nm).
12. Install grounding bracket.
13. Connect fuel hose to fuel connector assembly.
14. Connect the following electrical connectors;
    • Oxygen sensor
    • Throttle position sensor
    • Idle speed actuator
    • Oil pressure switch
    • EGR vacuum solenoid valve at intake manifold
15. Connect purge control solenoid vacuum hose to intake manifold.
16. Attach wire harness from rear of cylinder head.
17. Connect brake booster vacuum hose and cruise control vacuum hose to surge tank.
18. Connect heater hose to elbow.
19. Connect 2 fuel injection electrical connectors at rear of cylinder head.
20. Connect 2 ignition coil electrical connectors.
21. Install cylinder head cover.
22. Install 7 cylinder head cover bolts. Tighten bolts to 60 in lb (7 Nm).
23. Install vacuum pipe and 2 bolts at rear of cylinder head cover. Tighten bolts to 60 in lb (7 Nm).
24. Connect vacuum tube to pipe.
25. Connect loom holder to rear of cylinder head cover.
26. Install 2 screws to high tension wire protectors.
27. Install air hose to behind intake manifold.
28. Install ISC air hose to idle speed actuator.
29. Install PCV valve to cylinder head cover.
30. Install air intake hose.
31. Connect mass air flow sensor electrical connector.
32. Install the following;
    • Air hose
    • Air ISC air hose
    • Breather hose
    • Vacuum hose from air intake hose
33. Attach accelerator cable.
34. Install 3 bolts that secure accelerator cable and air intake hose to cylinder head cover. Timing belt pulley timing marks
    
    NOTE: Timing belt pulley timing mark and timing mark must be aligned.
    Camshaft timing marks
    
    NOTE: The arrow at "2" on camshaft pulley must be aligned with timing mark on front housing.
    
35. Install timing belt.
36. Install timing belt cover.
37. Pressurize fuel system.
38. Start engine and check ignition timing.

3.4L Engine To Remove:

1. Remove the lower intake manifold.
2. Remove the exhaust crossover pipe.
3. If removing the right cylinder head, remove the catalytic converter from exhaust manifold.
4. If removing the left cylinder head, remove the engine oil dipstick and tube.
5. Remove the rocker arms and pushrods.
6. Remove and discard the cylinder head bolts.
7. Remove the cylinder head.
8. Clean the mating surfaces on the following items:
   • Cylinder head
   • Cylinder block
   • Intake manifold
9. Clean the cylinder block bolt threads.

NOTE: During disassembly, keep the valve train components together for proper location during assembly.
To Install:
NOTE: Coat the cylinder head bolt threads using thread sealer.

1. If removed, install the following components:
   • Exhaust manifold
   • Accessory studs
   • Spark plugs
2. Place the cylinder head gasket in position over the dowel pins. Ensure that the THIS SIDE UP note is showing.
3. Install the cylinder head. Cylinder head torque sequence ’99-‘00
   
   Cylinder head torque sequence ’01-05
   
   
4. Install the new cylinder head bolts.
   • Tighten the cylinder head bolts a first pass to 44 ft lb (60 Nm).
5. Tighten the cylinder head bolts in sequence an additional 95 degrees.
6. Install the intake gasket.
7. Install the pushrods and rocker arms.
8. Raise and support the vehicle.
9. Install the catalytic converter and dipstick tube and indicator if removed.
10. Lower the vehicle.
11. Install the exhaust crossover pipe.
12. Install the intake manifolds.
13. Connect negative battery cable.
14. Fill the cooling system.

REMOVAL & INSTALLATION

1C-LTC and 2CL-TC Engines
(see Figures 1 and 2)

1. Disconnect the negative battery cable. Remove and label all electrical wiring, connectors and vacuum hoses necessary to gain removal clearance.

Fig. 1: Loosen and remove the cylinder head cover retaining nuts

1. Disconnect the PCV hose.
2. Remove the six nuts and seal washers from the cylinder head cover. Loosen them in a crisscross pattern.
3. Remove the cylinder head cover and the cover gasket from the cylinder head. Discard the gasket and replace with a new one.
   

To install:

1. With a wire brush or gasket scraper, remove all the old gasket material from the cylinder head and the cylinder head cover gasket surfaces.
2. When the cylinder head surfaces are free and clean, apply beads of sealant to the cylinder head in the locations shown in the accompanying illustration.

Fig. 2: Be sure to apply sealant on the cylinder head prior to cover installation

1. Install the new gasket in the cover. Make sure that the gasket seats evenly.
2. Place the cover with the gasket onto the cylinder head.
3. Install the six nuts and seal washers. Tighten the nuts to 65 inch lbs. (8 Nm).
4. Connect the PCV hose. Connect all removed vacuum hoses, connectors and electrical wiring. Connect the negative battery cable.
5. Start the engine and inspect for oil leaks. Repair any leaks as necessary.

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