Question about 1991 Honda Prelude

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91 prelude si head bolt torque spec - 1991 Honda Prelude

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Posted on Jan 02, 2017

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SOURCE: Torque specs for head bolts, 1990 Honda prelude si

49lbs I believe but it should tell you in the manual or goto a Kragen store and just flip thru a Haydem or Chilton repair book real quick.

Posted on May 03, 2010

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What lbs do I tighten the head bolts to on my 1990 Honda prelude SI 2.1L DOHC and in what order do I tighten them?


Go inside the local Autozone and ask for the cylinder head torque specs. They will look it up and print it out for you. It will contain the torque specifications as well as the sequences. Happy torquing.

Mar 01, 2015 | 1990 Honda Prelude

1 Answer

Need head bolt torque specs for a 1996 saturn sl


Quote:





Originally Posted by norvelplagbao52

1993 saturn sl2 1.9 dohc cylinder head torque
specs and sequence
Cylinder head bolt
tightening procedure:
CYLINDER HEAD BOLT TIGHTENING SEQUENCE:

INTAKE
SIDE
8 4 1 5 9

7 3 2 6 10
EXHAUST SIDE

In sequence,
torque the cylinder head bolts. Torque: 30 Nm (22 ft-lbs).
In sequence,
torque all bolts. Torque: 50 Nm (37 ft-lbs)
In sequence, turn each bolt an
additional 90 degrees.





Originally Posted by norvelplagbao52

1993 saturn sl2 1.9 dohc cylinder head torque
specs and sequence
Cylinder head bolt
tightening procedure:
CYLINDER HEAD BOLT TIGHTENING SEQUENCE:

INTAKE
SIDE
8 4 1 5 9

7 3 2 6 10
EXHAUST SIDE

In sequence,
torque the cylinder head bolts. Torque: 30 Nm (22 ft-lbs).
In sequence,
torque all bolts. Torque: 50 Nm (37 ft-lbs)
In sequence, turn each bolt an
additional 90 degrees.

Sep 19, 2013 | 1996 Saturn SL

1 Answer

Torque spec on head for 1986 civic si 1.5liter


Help need torque spec for cylinder head bolts 1986 honda civic dx 1.5 pls...

Mar 10, 2012 | 1986 Honda Civic

1 Answer

I NEED replace head gaske


Hi there:Removal and InstallationExcept Accord V-6


The cylinder head temperature must be below 100 degrees F (38 degrees C); allow the engine to cool several hours if the car has been recently driven. Turn the crankshaft pulley so that the number one piston is at Top Dead Center (TDC) of the compression stroke.

  1. Disconnect the battery ground cable.
  2. Drain the cooling system.
  3. Remove the air cleaner and intake duct assembly.
  4. Label and remove the brake booster, PCV and charcoal canister vacuum hoses from the intake manifold.
  5. Remove the engine ground cable from the cylinder head or valve cover.
  6. Relieve the fuel pressure using the proper procedure. Disconnect the fuel lines.
  7. Disconnect the accelerator cable at the throttle body or carburetor. On automatic transaxle vehicles, also disconnect the throttle control cable.
  8. Disconnect and tag all the wire harnesses and vacuum hoses from the cylinder head, intake manifold and throttle body/carburetor. Disconnect the spark plug wires, then position them aside.
  9. Disconnect the upper radiator hose. Remove the heater hoses from the cylinder head.
  10. If equipped, remove the cruise control actuator. Do not disconnect the cable; move the actuator out of the work area with the cable attached.
  11. Remove accessory drive belts.
  12. Disconnect the inlet hose from the power steering pump and plug the hose immediately to prevent fluid leakage. Remove the power steering pump from the cylinder head and position it aside.

When the power steering hose is disconnected, the fluid will flow out. Cover the alternator with a shop towel to prevent the fluid from leaking into it.

  1. If the alternator is mounted to the cylinder head, remove it.
  2. Remove the power steering and alternator brackets if they are mounted on the cylinder head.
  3. Remove the distributor. Be sure to scribe a line relating the position of the distributor to the engine for easy installation.
  4. If equipped, remove the cylinder sensor next to the distributor.
  5. Remove the valve cover.
  6. Remove the timing belt.

Do not crimp or bend the timing belt.

  1. Remove the exhaust header pipe nuts and the header pipe bracket (if equipped). Pull the pipe away from the exhaust manifold.
  2. If equipped, remove the EGR crossover and air suction pipes.
  3. On Accords through 1989 and Preludes through 1991, the cylinder head can be removed with the intake and exhaust manifolds either still attached or removed. On other models, the manifolds should be removed first.
  4. On some engines, it will be necessary to remove the camshaft holders, camshafts and rocker arms to access the cylinder head bolts. If so, refer to the proper procedures in this section.
  5. Remove the cylinder head bolts in sequence (take notice of any bolt holes occupied by longer bolts). Failure to follow this procedure may cause the head to warp.
    1. On 1984-89 Accords and 1984-91 Preludes, work from the ends toward the center. Loosen each bolt about 1 / 2 turn each time and make several passes to release the tension evenly.
    2. On 1990-95 Accords and 1992-95 Preludes, follow the loosening sequence shown in the illustrations. Loosen each bolt about 1/3 turn each time. Repeat the sequence until all bolts are loosened.

3_5_2012_9_19_50_pm.gif
Fig. 1: Bolt loosening sequence on 1990-93 Accords and 1992-95 Preludes with 2.2L engines

24. Remove the cylinder head. The head may resist removal, even with the bolts out. Tap the edge of the head with a plastic or rubber mallet; lift the head straight up to remove it.
  1. Remove the cylinder head gasket and clean the mating surfaces.
  1. If applicable, remove the intake and exhaust manifolds from the cylinder head.

To install:
  1. Install a new head gasket on the engine, making certain it is positioned correctly. The cylinder head dowel pins and the oil jet must be in place. Refer to the illustrations if necessary.
  2. Install the head. Lower it straight down onto the block, aligning it correctly.
  3. Apply clean engine oil to the bolt threads and the contact face of the bolt head. Install the head bolts finger-tight.
  4. On all models except 1988-89 DOHC Prelude and 1992-95 Preludes with 2.3L and VTEC engines, tighten the head bolts following sequence A. On 1988-89 DOHC Preludes, use sequence B. Use sequence C on 1992-95 Preludes with 2.3L and VTEC engines.
    1. On 1984-89 Accords and 1984-91 Preludes, tighten the bolts in two passes. The first pass should bring the bolts to about 22 ft. lbs. (30 Nm). On the second pass, tighten the bolts to their final torque of 49 ft. lbs. (68 Nm).
    2. On 1990-93 Accords, tighten the bolts to 29 ft. lbs. (40 Nm) on the first pass, 51 ft. lbs. (70 Nm) on the second pass, then tighten the bolts to their final torque of 78 ft. lbs. (108 Nm).
    3. On 1994-95 Accords and 1992-95 Preludes, the bolts are also tightened in three passes. Tighten the bolts to 29 ft. lbs. (40 Nm) on the first pass, 51 ft. lbs. (70 Nm) on the second pass, then tighten the bolts to their final torque of 72 ft. lbs. (100 Nm).
    .
3_5_2012_9_24_01_pm.jpg
Fig. Cylinder head bolt torque sequence B

3_5_2012_9_24_44_pm.jpg
Fig. Cylinder head bolt torque sequence B

3_5_2012_9_25_06_pm.jpg
Fig. Cylinder head bolt torque sequence C

  1. If applicable, assemble the intake and exhaust manifolds to the head. Use new gaskets.
  2. If applicable, install the cam, rockers and camshaft holders.
  3. If equipped, install the EGR crossover and air suction pipes.
  4. Connect the exhaust pipe to the manifold using new nuts.
  5. Install the timing belt.
  6. Install the valve cover.
  7. Install the cylinder sensor (if equipped) and the distributor.
  8. If applicable, install the alternator.
  9. Install the power steering pump, then connect the inlet hose to the pump.
  10. Install the accessory drive belts. Adjust the belt tensions.
  11. Install the heater hoses.
  12. Install the cruise control actuator if it was removed.
  13. Connect the spark plug wires. Connect all the wire harnesses and vacuum hoses to the cylinder head, intake manifold and throttle body/carburetor.
  14. Connect the throttle control cable and/or accelerator cable at the throttle body.
  15. Connect the fuel lines.
  16. Install the brake booster, PCV and charcoal canister vacuum hoses.
  17. Install the air cleaner and intake duct.
  18. Refill the engine coolant. It is recommended that the engine oil be changed whenever a cylinder head is removed.
  19. Connect the negative battery cable.
  20. Start the engine, allowing it to idle. Bleed the cooling system. Check the work area carefully for any signs of fluid leakage or any indication of the timing belt rubbing or slapping the covers

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.
Thank you for using FixYa.

Mar 05, 2012 | 1993 Honda Accord

2 Answers

Head torque specs for 92 honda accord with f22a1


Thanks for using FixYa.

To install:
  1. Install a new head gasket on the engine, making certain it is positioned correctly. The cylinder head dowel pins and the oil jet must be in place. Refer to the illustrations if necessary.
  2. Install the head. Lower it straight down onto the block, aligning it correctly.
  3. Apply clean engine oil to the bolt threads and the contact face of the bolt head. Install the head bolts finger-tight.
  4. On all models except 1988-89 DOHC Prelude and 1992-95 Preludes with 2.3L and VTEC engines, tighten the head bolts following sequence A. On 1988-89 DOHC Preludes, use sequence B. Use sequence C on 1992-95 Preludes with 2.3L and VTEC engines.
    1. On 1984-89 Accords and 1984-91 Preludes, tighten the bolts in two passes. The first pass should bring the bolts to about 22 ft. lbs. (30 Nm). On the second pass, tighten the bolts to their final torque of 49 ft. lbs. (68 Nm).
    2. On 1990-93 Accords, tighten the bolts to 29 ft. lbs. (40 Nm) on the first pass, 51 ft. lbs. (70 Nm) on the second pass, then tighten the bolts to their final torque of 78 ft. lbs. (108 Nm).
    3. On 1994-95 Accords and 1992-95 Preludes, the bolts are also tightened in three passes. Tighten the bolts to 29 ft. lbs. (40 Nm) on the first pass, 51 ft. lbs. (70 Nm) on the second pass, then tighten the bolts to their final torque of 72 ft. lbs. (100 Nm).

      0900c152800b80b4.jpg enlarge_icon.gifenlarge_tooltip.gif

      Fig. Fig. 9: Cylinder head bolt torque sequence A

      jturcotte_2331.gif

      Fig. Fig. 10: Cylinder head bolt torque sequence B


      0900c152800b80b6.jpg enlarge_icon.gifenlarge_tooltip.gif

      Fig. Fig. 11: Cylinder head bolt torque sequence C


  5. If applicable, assemble the intake and exhaust manifolds to the head. Use new gaskets.
  6. If applicable, install the cam, rockers and camshaft holders.
  7. If equipped, install the EGR crossover and air suction pipes.
  8. Connect the exhaust pipe to the manifold using new nuts.
  9. Install the timing belt.
  10. Install the valve cover.
  11. Install the cylinder sensor (if equipped) and the distributor.
  12. If applicable, install the alternator.
  13. Install the power steering pump, then connect the inlet hose to the pump.
  14. Install the accessory drive belts. Adjust the belt tensions.
  15. Install the heater hoses.
  16. Install the cruise control actuator if it was removed.
  17. Connect the spark plug wires. Connect all the wire harnesses and vacuum hoses to the cylinder head, intake manifold and throttle body/carburetor.
  18. Connect the throttle control cable and/or accelerator cable at the throttle body.
  19. Connect the fuel lines.
  20. Install the brake booster, PCV and charcoal canister vacuum hoses.
  21. Install the air cleaner and intake duct.
  22. Refill the engine coolant. It is recommended that the engine oil be changed whenever a cylinder head is removed.
  23. Connect the negative battery cable.
  24. Start the engine, allowing it to idle. Bleed the cooling system. Check the work area carefully for any signs of fluid leakage or any indication of the timing belt rubbing or slapping the covers.

Sep 25, 2011 | Honda Accord Cars & Trucks

1 Answer

Can you tell me the torque spec.on head bolts for a 1985 ltd 3.8 thank you


Six IN LINE - 6L

zjlimited_510.jpg

Fig.: Cylinder head torque sequence - 6 -cylinder engine



Cylinder head torquing should proceed in three steps and in the prescribed order. Tighten them first to 50-55 ft. lbs. (65-71 Nm), then give them a second tightening to 60-65 ft. lbs. (78-84 Nm). The final step is to 70-75 ft. lbs. (91-97 Nm), at which they should remain undisturbed.


Six IN V - 6V

zjlimited_511.jpg

Fig.: Cylinder head bolt torque sequence - 6 -cylinder engine

Tighten the head, according to the illustrated sequence in three progressive steps. Tighten the bolts to 50-55 ft. lbs. (68-74 Nm), then 60-65 ft. lbs. (81-88 Nm) and finally to 75 ft. lbs. (102 Nm).


Hope this helps (remember to rate and commene this answer).

Jan 19, 2011 | 1985 Ford LTD

1 Answer

I am looking for torque specs on a 91 honda prelude 2.1l.I need specs and sequence for the main bearing caps and rod bearings


the specs for the 1991 prelude with a 2.1 engine are, the connecting rod caps are 34 ftlbs and the main bearing cap are 49 ft lbs, hope this helps,

Sep 10, 2010 | Honda Prelude Cars & Trucks

1 Answer

Cyl head bolt torque 1990 honda prelude dohc


mcdevito75 here, your local parts store can give you the specs.

Jun 17, 2010 | 1990 Honda Prelude

1 Answer

Torque specs for head bolts, 1990 Honda prelude si


49lbs I believe but it should tell you in the manual or goto a Kragen store and just flip thru a Haydem or Chilton repair book real quick.

May 03, 2010 | 1990 Honda Prelude

1 Answer

I need head torque specs on a 2000 xterra


Cylinder Head Bolt step1 22Ft Lbs- Step 2 59ft Lbs- Step3 Loosen All Bolts- Step 4 22Ft lbs- Step5 86-91 degress.Thanks

Mar 06, 2010 | Nissan Xterra Cars & Trucks

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