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How tight should i torque the cylinder head bolts for chevrolet spark 1.2L

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  • Edsen Kamati
    Edsen Kamati Apr 10, 2015

    Thank you Stuart, realy helpfull

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  • Chevrolet Master
  • 880 Answers

FIRST USE NEW HEADBOLTS. NOT THE OLD ONES. GO UP IN TORQUE IN 3 STAGES FIRST ALL THE BOLTS IN SEQUENCE TO 25LBS. SECOND ALL BOLTS IN SEQUENCE TO 50LBS. THEN FINALLY ALL BOLTS IN SEQUENCE TO 75LBS

Posted on Apr 09, 2015

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What is the cylinder head tighten torque


Have a look on this link. You may be able to find your car:

SPECIFICATION LOOKUPS

Cylinder head bolts are usually tightened to around 65 ft-lbs, depending on what the car is.

There's more than 4 cylinder head bolts... There's usually 10 bolts.
There's also a sequence for tightening the bolts:

cylinder head tightening order Google Search

When tightening cylinder head bolts do it in 'stages' and follow the sequence .. ie.. tighten the bolts finger tight first, then torque them up to about 25 ft-lbs. Wait 2 minutes.

Then tighten them to about 45 ft-lbs in sequence. Wait 2 minutes.

Do it again up to about 55 ft-lbs. Wait 2 minutes.

Tighten them up to 65 ft-lbs or whatever is recommended for your car.

Tightening in order/sequence pulls the cylinder head evenly onto the block. Waiting 2 minutes between stages allows a 'stretched' bolt to 'settle'.

Feb 17, 2016 | Cars & Trucks

1 Answer

Please explain on a 96 cavalier 2.2 it say to torque heads 90 degress?


You are referring to the cylinder head bolt-torque sequence. Here is the instructions, then I'll clarify.

  1. Install cylinder head bolts finger-tight. New cylinder head bolts are recommended.
  2. Tighten bolts in sequence, tighten the long bolts to 46 ft. lbs. (63 Nm) plus 90 degrees. Tighten the short bolts to 43 ft. lbs. (58 Nm) plus 90 degrees.

The cylinder head is made of aluminum. Over-torque of bolts can result in warping or cracking of the head. Also, some of the head bolts go into the water jacket. Those bolts requires a teflon sealer or water will come up through the threads and result in coolant leaks. Use a thin wood dowel to probe the cylinder head bolt holes to see if they bottom out or go into the water jacket.

When you tighten the bolts, do it in the sequence directed, up to the toque specified for each length bolt. Once that has been done, you will make one more circuit of the bolts, tightening each one by 90 degrees. The easy way to do this is to place your torque wrench on a bolt with the handle pointed at 6 o'clock. Tighten the bolt another 90 degrees, or when the handle reaches 9 o'clock. 90 degrees is 1/4 revolution of the bolt. (You can start the wrench anywhere that is convenient to make the 90 degree advance without interruption.)

Hope that helps!

Nov 14, 2013 | 1996 Chevrolet Cavalier

1 Answer

Looking for head bolt troque spec for 3.4l impala sfi04


Please don't forget to rate. Thank you:

Left side front cylinder head


98e175a.gif
Cylinder head bolt torque sequence-3.4L engine

  • Cylinder head by aligning it with the dowel pins
  • New cylinder head bolts coated with a sealant (such as GM 1052080). Torque the bolts in the proper sequence (1-8) to 37 ft. lbs. (50 Nm). Using a torque angle meter turn the bolts 90 degrees in the proper sequence.
  • Left side exhaust manifold. Torque the bolts to 12 ft. lbs. (16 Nm).
  • Spark plugs. Torque the plugs 11 ft. lbs. (15 Nm).


  • Right side rear cylinder head:


    71cd5b7.gif
    Cylinder head bolt torque sequence-3.4L engine


  • New cylinder head gasket
  • Cylinder head on top of the gasket and make certain it is lined up properly with the dowel pins
  • New cylinder head bolts coated with a sealant (such as GM 1052080). Torque the bolts in the proper sequence (1-8) to 37 ft. lbs. (50 Nm). Using a torque angle meter turn the bolts 90 degrees in the proper sequence.
  • Right side exhaust manifold. Torque the bolts to 12 ft. lbs. (16 Nm).
  • Spark plugs. Torque the plugs 11 ft. lbs. (15 Nm).
  • Spark plug wires
  • Exhaust crossover pipe. Torque the fastener to 18 ft. lbs. (25 Nm).
  • Valve rocker arms and pushrods. Torque the fastener to 89 inch lbs. (10 Nm). Using a torque angle meter torque the fastener an additional 30 degrees.
  • Lower intake manifold. Torque the bolts to 115 inch lbs. (13 Nm).
  • Upper intake manifold. Torque the bolts to 18 ft. lbs. (25 Nm).
  • Nov 26, 2010 | 2004 Chevrolet Impala

    1 Answer

    NEED HELP WITH TORQUE SPECS ON 1998 CHEVROLET SURBURBAN CYLINDER HEADS 5.7


    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. gm-03-50-685.gif

    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. gm-03-50-685.gif

    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.

    Aug 31, 2010 | Chevrolet Suburban 1500 Cars & Trucks

    1 Answer

    How to replace head gasket 1998 Lumina


    Cylinder Head Removal & Installation 3.1L Engine To Remove:
    NOTE: With some minor variations, this procedure can be used on both the left and right cylinder heads.
    1. Raise and safely support the vehicle.
    2. Drain the engine coolant and the engine oil. Lower the vehicle.
    3. Remove the upper and lower intake manifolds.
    4. Remove the rocker arms and pushrods.
    5. Remove the exhaust crossover pipe.
    6. Remove the engine mount strut bracket.
    7. If removing the left side (front) head, remove the dipstick tube.
    8. Tag for identification, then remove the spark plug wires.
    9. Remove the spark plugs.
    10. Remove the exhaust manifold using the procedures found in this section.
    11. Remove the eight cylinder head bolts, then remove the cylinder head. There are locator pins that align the head to the block. Pull upwards on the head to disengage the pins, then remove the cylinder head to a suitable work area.
    12. If the head is be overhauled, remove any remaining components such as the engine lift hook, the fuel line bracket bolts, the engine coolant temperature sensor, etc., as required.
    Position a new gasket, install the head, then tighten the bolts in the sequence shown (3.1L engine shown) 93173g43.gif

    To Install:
    NOTE: If the head gasket failed, determine the cause. Gasket failure is caused by the following conditions: improper installation; overheating due to a failure in the electric cooling fan system or a leak in the cooling system; loose or warped cylinder head; missing, off location or not fully seated locator dowel pins; low torque on the cylinder head bolts; warped block surface; scratched or gouged gasket surfaces; excessive intake manifold torque and even cracked engine block tapped holes.
    1. Clean all parts well. Remove all foreign material to the bare metal. Do not use a motorized wire brush on any gasket sealing surface. It is good practice to use the proper size thread-cutting tap to clean the threaded bolt holes in the block. This helps assure an accurate torque reading.
    2. Place a new head gasket on the clean engine block deck surface. Many gaskets will have some sort of marking denoting TOP or THIS SIDE UP. Make sure the gasket sits flat and is not hung up on the locator dowel pins. Use no sealer on the head gasket.
    3. Carefully set the cylinder head in place, using care not to damage the gasket. Make certain that the head engages the locator dowel pins that properly position the head.
    4. The bolts should be very clean since dirt built-up on the bolt threads makes it difficult to get an accurate torque reading. These are 'torque to yield' bolts which stretch a small amount when tightened; new bolts are always recommended. On a used vehicle, especially a high-mileage vehicle, it may be difficult to determine if the heads have been removed before and how many cycles the bolts have been removed and tightened. New bolts should be part of any cylinder head service. Use GM Sealer #1052080, or equivalent, on the threads of the head bolts and install all eight bolts, finger-tight.
    5. With an accurate torque wrench, tighten the bolts gradually, in sequence, working from the center outwards. Final torque should be 33 ft. lbs. (45 Nm), plus an additional 90 degrees (1/4-turn). A torque angle meter is recommended.
    6. Install the remaining components in the reverse order of the removal process.

    Aug 11, 2010 | 1998 Chevrolet Lumina

    2 Answers

    What r the torque specifications on installing a head on a 1999 yukon and the tightening sequence


    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.

    c409909.jpg

    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.

    7f05cb7.jpg

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

    Aug 04, 2010 | 1999 GMC Yukon Denali

    2 Answers

    Head gasket torque specifications and sequense


    Please don't forget to rate. Thank you:

    Left side front cylinder head


    98e175a.gif
    Cylinder head bolt torque sequence—3.4L engine

  • Cylinder head by aligning it with the dowel pins
  • New cylinder head bolts coated with a sealant (such as GM 1052080). Torque the bolts in the proper sequence (1-8) to 37 ft. lbs. (50 Nm). Using a torque angle meter turn the bolts 90 degrees in the proper sequence.
  • Left side exhaust manifold. Torque the bolts to 12 ft. lbs. (16 Nm).
  • Spark plugs. Torque the plugs 11 ft. lbs. (15 Nm).


  • Right side rear cylinder head:


    71cd5b7.gif
    Cylinder head bolt torque sequence—3.4L engine


  • New cylinder head gasket
  • Cylinder head on top of the gasket and make certain it is lined up properly with the dowel pins
  • New cylinder head bolts coated with a sealant (such as GM 1052080). Torque the bolts in the proper sequence (1-8) to 37 ft. lbs. (50 Nm). Using a torque angle meter turn the bolts 90 degrees in the proper sequence.
  • Right side exhaust manifold. Torque the bolts to 12 ft. lbs. (16 Nm).
  • Spark plugs. Torque the plugs 11 ft. lbs. (15 Nm).
  • Spark plug wires
  • Exhaust crossover pipe. Torque the fastener to 18 ft. lbs. (25 Nm).
  • Valve rocker arms and pushrods. Torque the fastener to 89 inch lbs. (10 Nm). Using a torque angle meter torque the fastener an additional 30 degrees.
  • Lower intake manifold. Torque the bolts to 115 inch lbs. (13 Nm).
  • Upper intake manifold. Torque the bolts to 18 ft. lbs. (25 Nm).
  • Mar 06, 2010 | 2001 Chevrolet Venture

    1 Answer

    Cylinder head bolt torque chevrolet 3.4


    here is the troque spec for the cylinder heads.

    Cylinder Head Bolt
    • First Pass
    60 N·m
    44 lb ft
    • Final Pass
    95 degrees
    Cylinder Head Bolt
    • First Pass
    60 N·m
    44 lb ft
    • Final Pass
    95 degrees


    Cylinder Head Bolt
    • First Pass
    60 N·m
    44 lb ft
    • Final Pass
    95 degrees
    first pass 44 ftlbs
    second pass 95 degrees

    Jan 30, 2010 | 2003 Chevrolet Impala

    1 Answer

    Blown head gaskit need to remove head and replace with new ong


    2.2L (VIN 4) Engine
    1. Before servicing the vehicle, refer to the precautions section.
    2. Relieve the fuel system pressure.
    3. Drain the cooling system.
    4. Remove or disconnect the following:
      • Accessory drive belt
      • Air cleaner outlet duct
      • Engine mount
      • Intake manifold
      • Exhaust manifold
      • Engine Coolant Temperature (ECT) sensor electrical connector
      • Power steering pump
      • Radiator inlet pipe
      • Spark plug wires
      • Rocker arm cover

      NOTE Whenever valve train components are removed, keep them in order for installation purposes.

      • Rocker arms and pushrods
      • Lifters
      • Alternator rear brace and the alternator
      • Power steering pump
      • Radiator inlet pipe
      • Ignition coil assembly
      • Accessory bracket
      • Spark plug wires
      • Cylinder head bolts

      WARNING Two sizes of bolts are used; note the location of each.

      • Cylinder head
    5. Inspect the cylinder head and block surface for cracks, nicks, heavy scratches and flatness.
    b9d2546.gif
    Cylinder head torquing sequence—2.2L (VIN 4) engine

    1. Install or connect the following:
      • Cylinder head with a new gasket and new cylinder head bolts. Torque the long bolts, in sequence to 46 ft. lbs. (63 Nm) and the short bolts to 43 ft. lbs. (58 Nm) plus an additional 90 degree turn on all the bolts.
      • Lifters
      • Pushrods and rocker arms. Torque nuts to 22 ft. lbs. (30 Nm).
      • Rocker arm cover. Torque the bolts to 89 inch lbs. (10 Nm).
      • Spark plug wires
      • Accessory bracket
      • Ignition coil assembly
      • Radiator inlet pipe
      • Power steering pump. Torque the bolts to 22 ft. lbs. (30 Nm).
      • ECT sensor electrical connector
      • Exhaust manifold. Torque the nuts to 118 inch lbs. (13 Nm).
      • Alternator. Torque the bolts to 37 ft. lbs. (50 Nm).
      • Intake manifold. Torque the bolts to 17 ft. lbs. (24 Nm).
      • Engine mount. Torque the bolts to 55 ft. lbs. (75 Nm).
      • Air cleaner outlet duct
      • Accessory drive belt
      • Negative battery cable
    2. Refill and bleed the cooling system.
    3. Start the vehicle and inspect for leaks.

    Oct 08, 2009 | 2000 Chevrolet Cavalier

    1 Answer

    Need to know cylinder head bolt torque specs


    Head Bolt Torque For your 1994 Oldsmobile Cutlass Supreme (3.4L SFI DOHC): clearpixel.gif Foot pounds (Final torque) clearpixel.gif Note: Torque sequence --------- | 6 2 3 7 | | 5 1 4 8 | --------- Step 1: torque in sequence to 33 Ft/Lbs Step 2: turn an additional 90 degrees Recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) thatpermanently stretch during the initial installation.New head bolts must be used when cylinder head isreplaced or re-installed to obtain proper torque. clearpixel.gif clearpixel.gif clearpixel.gif Foot pounds (Final torque) clearpixel.gif Note: Torque sequence --------- | 8 4 1 5 | | 7 3 2 6 | front --------- of engine | 6 2 3 7 | | 5 1 4 8 | Step 1: torque to 40 Ft/Lbs --------- Step 2: turn an additional 90 degrees Recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) thatpermanently stretch during the initial installation.New head bolts must be used when cylinder head isreplaced or re-installed to obtain proper torque.

    Feb 07, 2009 | 1994 Oldsmobile Cutlass Supreme

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