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2003 Buick century upper intake manifold bolt torque and sequence

Upper intake manifold bolt torque and sequence

Posted by Anonymous on

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Posted on Jan 02, 2017

outdoorsman5
  • 631 Answers

SOURCE: 92 buick century head bolt tighten sequence?also

Exhuast manifold torque 38 foot pounds, Head bolts are 38 Foot pounds after you add sealant to the bolts then after torque go another 130 degrees. Tighten center 4 bolts in sequence another 30 degrees. 0b61846.jpg

Posted on Nov 26, 2009

duane_wong
  • 6826 Answers

SOURCE: What are the torque specs

Front Pipe REMOVAL & INSTALLATION Pipe Without Catalytic Converter

  1. Before removing any component of the exhaust system, always squirt a liquid rust dissolving agent onto the fasteners for ease of removal..
  2. Raise and support the front of the vehicle on jackstands.
  3. Remove the exhaust pipe-to-manifold nuts.
  4. Support the catalytic converter, then disconnect the pipe from the converter. Remove the pipe.
  5. Remove the exhaust gaskets. To install:
  6. Be sure to use all new gaskets when required. Assemble the system, check the clearance and tighten the bolts to about 15-30 ft. lbs. (20-41 Nm). Fig. 1: Front exhaust pipe connection common on vehicles with the catalytic converter not included 86813320.gif

  7. All clamps should be tightened to about 18-25 ft. lbs. (24-34 Nm). Do overtighten the clamps. If pipes become dented they can leak.
Pipe With Catalytic Converter
  1. Before removing any component of the exhaust system, always squirt a liquid rust dissolving agent onto the fasteners for ease of removal.
  2. Raise and support the vehicle.
  3. On some vehicles you will need to remove the brace from the transaxle.
  4. Remove the exhaust pipe nuts from the manifold.
  5. Support the catalytic converter pipe bolts from the rear of the converter.
  6. Lower the catalytic converter/front pipe assembly from the vehicle. To install:
  7. Be sure to use all new gaskets when required.
  8. Attach the new catalytic converter/front pipe assembly to the vehicle. Tighten the pipe to manifold nuts to 20-40 ft. lbs. (27-55 Nm).
  9. Attach the bolts at the rear of the catalytic converter/front pipe. Tighten them to 30-35 ft. lbs. (41-47 Nm).
  10. Connect the brace at the transaxle if removed.
  11. Lower the vehicle. prev.gif next.gif

Posted on Dec 18, 2010

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1 Answer

What do the intake manifold bolts for a 2002 Chevy Malibu with a 3.1L need to be torqued to?


Pretend the picture is lower intake manifold, that is the tightening sequence.
1st step 5 ft lbs
2nd step bolts 1--4 9.6 ft lbs
3rd step bolts 5--8 18 ft lbs
The upper intake manifold use about the same sequence tighten to 18 ft lbs.
If you don't like ft lbs use inch lbs.
If the upper intake manifold is plastic, be careful with that.
intake manifold-glquxvjrls3o0ta25lrevmb0-4-0.jpg

Apr 17, 2017 | Chevrolet Malibu Cars & Trucks

1 Answer

2001 buick century torque prints for haeds on up


the 3100 specs
Type: Bolt Dim: Length: Head: Hexagon Grade: 37 Ft-Lbs 444 In-Lbs 50.17 N-m Connects: Cylinder Head To Engine Block Years: 1998-2001 Vote Record: Vote Note: 3100 - Head Bolts - 2 Steps: 37FtLbs; +90deg
12 Ft-Lbs 144 In-Lbs 16.27 N-m Connects: Exhaust Manifold To Cylinder Head Years: All Vote Record: Vote Note: 3100 - Exhaust Manifold to Cylinder Head
Type: Bolt Dim: Length: Head: Hexagon Grade: 9.58 Ft-Lbs 115 In-Lbs 13 N-m Connects: Intake Manifold To Cylinder Head Years: All Vote Record: 0/1(0%) Note: 3100 - Lower Bolts - 2 Steps: 5 FtLbs; 9.58 FtLbs Here are the head bolt torques for a 3.8
37 Ft-Lbs 444 In-Lbs 50.17 N-m Connects: Cylinder Head To Engine Block Years: 1999-2005 Vote Record: Vote Note: 3800 II - 2 Steps: 37FtLbs; +120deg
13 Ft-Lbs 156 In-Lbs 17.63 N-m Connects: Exhaust Manifold To Cylinder Head Years: 1999-2005 Vote Record: Vote Note: 3800 II - Exhaust Manifold to Cylinder Head - NOT FRONT 2
7.42 Ft-Lbs 89 In-Lbs 10.06 N-m Connects: Fuel Rail To Intake Manifold Years: All Vote Record: Vote Note: 3800 II - Fuel Rail Mounting Bolts 2.25 Ft-Lbs 27 In-Lbs 3.05 N-m Connects: Idle Air Control Valve To Throttle Body Years: All Vote Record: Vote Note: 3800 II - Idle Air Control Valve to Throttle Body Type: Bolt Dim: Length: Head: Nut Grade: 11 Ft-Lbs 132 In-Lbs 14.92 N-m Connects: Intake Manifold To Cylinder Head Years: All Vote Record: Vote Note: 3800 II - Intake Manifold to Cylinder Head Bolts/Nuts
7.42 Ft-Lbs 89 In-Lbs 10.06 N-m Connects: Intake Manifold Plenum To Intake Manifold Years: All Vote Record: Vote Note: 3800 II - Intake Manifold (Upper) to Lower Manifold Type: Bolt Dim: Length: Head: Hexagon Grade: 14 Ft-Lbs 168 In-Lbs 18.98 N-m Connects: Knock Sensor To Cylinder Head Years: All Vote Record: Vote Note: 3800 II - Knock Sensor

Jul 24, 2016 | 2001 Buick Century

1 Answer

Replacing upper intake gasket 2003 E150 4.2l


Remove the 12 bolts that hold the intake to the lower section and disconnect all the hoses and linkages. Replace the lower gaskets and torque the manifold in a radiating sequence in this order.
stages to tighten
stage 1 - 59 inch pounds
stage 2 - 66 inch pounds
stage 3 - 90 degrees

Sep 17, 2012 | 2003 Ford E150

1 Answer

WHAT IS THE TORQUE ON A 94 BUICK CENTURY 3.1 V6 ON THE INTAKE AND EXHAUST PUSH RODS?


Tightening sequence would be to tighten from the center most bolts to the outer most bolts.
Intake Upper Bolts = 18 lb.ft.
Intake Lower Bolts = 10 lb.ft.
Exhaust Manifold Nut = 12 lb.ft
Exhaust Manifold pipe = 22 lb.ft.
Exhaust Manifold Heat Shield = 18 lb.in.
Rocker Arm Torque Nuts = 18 lb.ft.

Hope this helped you ?? if you need more info, get back to me.....

Jun 16, 2011 | 1994 Buick Century

1 Answer

Looking for cylinder head torque specs and intake manifold torque specs


on the 2.5 4 cylinder

step 1 18 ft lbs.

step 2 26 ft lbs. except bolt #9 re tighten it to 18 ft. lbs.

step 3 all bolts an additional 90 degrees.

intake manifold bolts 65 ft lbs.

on the 3.3L V6

step 1 35 ft lbs.

step 2 tighten all bolts an additional 130 degrees

step 3 tighten center 4 bolts an additional 30 degrees

intake manifold bolts 88 in. lbs.


Jan 13, 2011 | 1992 Buick Century

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 the torque specs for the upper intake bults on a 2002 chrysler sebring conv. 2.7L


    4022caa.jpg

    Fig. Intake manifold bolt torque sequence 2.7L engine

    Upper intake manifold with a new gasket on the lower intake manifold and torque the bolts, in sequence, to: 105 inch lbs. (12 Nm)

    Hope helps (remember to rate this answer). Good job.

    Oct 11, 2010 | 2002 Chrysler Sebring

    1 Answer

    Intake manifold bolts torque and rocker arm torque


    Intake Manifold Coolant Pipe Bolt .... 89 in lbs (7.4166 ft. lbs)
    Lower Intake Manifold Bolt .............. 115 in. lbs (9.5833 ft. lbs)
    Upper Intake Manifold Bolt/Stud ...... 18 ft. lbs
    Valve Rocker Arm Bolt ................... 168 in. lbs (14 ft. lbs +30 degress

    Feb 06, 2010 | 1999 Buick Century

    1 Answer

    92 buick century head bolt tighten sequence?also head bolt torque?also manifold? 3.3l v6 engine thanks


    Exhuast manifold torque 38 foot pounds, Head bolts are 38 Foot pounds after you add sealant to the bolts then after torque go another 130 degrees. Tighten center 4 bolts in sequence another 30 degrees. 0b61846.jpg

    Nov 26, 2009 | 1992 Buick Century

    1 Answer

    Intake manifold gasket / replace


    3.8L Engine

    NOTE The 3.8L (VIN K) non-supercharged engine uses a two-piece intake manifold consisting of an upper air plenum which mounts the throttle body and a lower intake manifold assembly which houses the fuel injectors. The 3.8L (VIN 1) supercharged engine uses a similar lower intake manifold. The supercharger serves as the upper manifold.
    Lower Manifold

    NOTE Two bolts which fasten the lower intake manifold to the cylinder head are accessible only after the upper intake manifold is removed. These bolts are located in the right front and left rear corners of the lower intake manifold. Remove the upper intake manifold to service the lower intake.
    The 3.8L (VIN 1) supercharged engine uses a manifold similar to the 3.8L (VIN K), but the supercharger serves as the upper manifold.
    1. Disconnect the negative battery cable.
    2. On 3.8L (VIN 1) engines, remove the supercharger assembly. Please see the procedure in this section.
    3. Remove the upper intake manifold using the procedure above.
    4. Remove the EGR outlet pipe from the intake manifold.
    5. Detach the engine coolant temperature sensor wiring harness from the sensor.
    6. Remove the lower intake manifold bolts and carefully lift off the manifold.

    To install:


    0900c15280269f1b.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Lower intake manifold bolt torque sequence-3.8L (VIN K) engine
    1. Clean all parts well with degreaser, especially the gasket seal surfaces on the upper and lower manifold pieces and between the lower manifold and the cylinder heads..
    2. Install new gaskets to the cylinder heads and new seals to the engine block. Carefully lower the manifold into place. Apply thread-locking compound to the bolt threads. Make sure to install the two hidden bolts in the lower intake manifold. Hand start all bolts, then torque evenly to 11 ft. lbs. (15 Nm). Follow the toque sequence, starting in the center, then working outwards in a circle.
    3. Install the remaining components in the reverse order of the removal process.

    Upper Intake Manifold (Plenum)
    1. Disconnect the negative battery cable.
    2. On 3.8L (VIN 1) engines, remove the supercharger assembly. Please see the procedure in this section.
    3. Tag for identification, then remove the right side spark plug wires.
    4. Disconnect the ignition wires from the fuel rail.
    5. Remove the fuel rail. Please see Section 5.
    6. Remove the cable bracket from the intake manifold.
    7. Remove the throttle body.


    NOTE Two bolts which fasten the lower intake manifold to the cylinder head are accessible are accessible only after the upper intake manifold is removed. These bolts are located in the right front and left rear corners of the lower intake manifold.
    1. Remove the upper intake manifold bolts and carefully lift the upper intake manifold from the engine.



    0900c15280269f1c.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Upper intake manifold and bolt torque sequence-3.8L (VIN K) engine
    To install:
    1. Clean all parts well with degreaser, especially the gasket seal surfaces on the upper and lower manifold pieces.
    2. Install new gaskets to the cylinder heads and new seals to the engine block. Carefully lower the manifold into place. Make sure to install the two hidden bolts in the lower intake manifold. Hand start all bolts, then torque evenly to 89 inch lbs. (10 Nm). Follow the torque sequence, starting in the center, then working outwards in a circle.
    3. Install the remaining components in the reverse order of the removal process.

    Sep 11, 2009 | 1999 Buick Regal

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