Dear expert What are the cylinder head bolt torque settings for the 4.0L MFI straight 6 engine? Regards Dave

I'm not sure what engine you have in your 95 grand am SO I will give you both the 4cyl and 6cyl Specs. Also you didn't ask for the torque sequence. I will include that as well for both. 2.3 DOHC Quad 4cyl: Torque sequence---> front ' 7 3 1 5 9 ' of engine ' 8 6 2 4 10 ' Step 1: torque bolts 1 thru 6 (26 Ft/Lbs & 90 degree turn) Step 2: torque bolts 7 & 8 (15 Ft/Lbs & 90 degree turn) Step 3: torque bolts 9 & 10 (22 Ft/Lbs & 90 degree turn) Recheck final torque in sequence *** CAUTION *** This engine uses "Torque To Yield" (TTY) head bolts that means they permanently stretch during the initial installation. New head bolts must be used when cylinder head is replaced or re-installed in order to obtain proper torque. 3.1 liter V6 Torque sequence--> ' 6 2 3 7 ' ' 5 1 4 8 ' Step 1: torque bolts in sequence to 33 Ft/Lbs Step 2: turn an additional 90 degrees Recheck final torque in sequence *** CAUTION *** This particular engine uses "Torque To Yield" head bolts(TTY) (that means the bolts permanently stretch during the initial installation.) You MUST use NEW head bolts when replacing or reinstalling the cylinder head in order to obtain the proper torque.

If you need further help, reach me via phone at https://www.6ya.com/expert/tasa_06404e20147f8840

1998 Isuzu Truck Rodeo 2WD 2.2L MFI DOHC 4cyl

The Head Bolt Torque

Torque sequence ----------------- front ' 7 3 1 5 9 ' of ' ' engine ' 8 4 2 6 10 ' ----------------- Step 1: torque bolts in sequence to 18 Ft/Lbs Step 2: turn bolts in sequence an additional 90-degrees Step 3: turn bolts in sequence an additional 90-degrees Step 4: turn bolts in sequence an additional 90-degrees recheck final torque in sequence

1998 Isuzu Truck Rodeo 2WD 3.2L MFI DOHC 6cyl

The Head Bolt Torque

Torque sequence -------------- front ' 6 1 3 7 ' of ' ' engine ' 5 2 4 8 ' -------------- Step 1: torque to 20 Ft/Lbs Step 2: torque to 47 Ft/Lbs recheck final torque in sequence

Since you didn't say which engine you have, I've pulled torque specs for 3 different engines. Also, since I can't include a diagram showing the relative locations of the numbered head-bolt locations, it would be a good idea for you to purchase a vehicle specific repair guide that will show this info.

Take particular note about the TTY (Torque to Yield) bolts used on 2 of the 3 engines shown. It is said that new head bolts MUST BE USED when head is replaced or re-installed to obtain the proper torque.

B2500 4 Cylinder

Torque sequence: --------- ' 10 6 2 4 8 ' front ' ' ' 7 3 1 5 9 ' -----------Step 1: torque in sequence to 51 Ft/Lbs Step 2: torque again in sequence to 51 Ft/Lbs Step 3: final tighten all bolts an additional 90 to 100 degrees recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) that permanently stretch during the initial installation. New head bolts must be used when cylinder head is replaced or re-installed to obtain proper torque.

B3000 3.0 6 Cylinder

Torque sequence ---------- ' 6 4 2 8 ' ' ' ' 5 1 3 7 ' ---------- Step 1: torque to 59 Ft/Lbs Step 2: loosen in sequence (1) full turn Step 3: torque to 41 Ft/Lbs Step 4: torque to 73 Ft/Lbs

B4000 4.0 6 Cylinder

Torque sequence --------- ' 5 1 3 7 ' ' ' ' 6 4 2 8 ' --------- Step 1: torque cylinder head bolts in sequence to 26 Ft/Lbs Step 2: torque cylinder head bolts to 56 Ft/Lbs Step 3: turn cylinder head bolts in sequence an additional 90-degrees recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) that permanently stretch during the initial installation. New head bolts must be used when cylinder head is replaced or re-installed to obtain proper torque.

Good luck with this job!

Hi Dave Any adjustable torque wrench will be fine, as long as the correct settings AND sequence is followed.... ....Have you taken the head to have it checked for distortion....Its a good idea when doing any work which requires the removal of the cylinder head, especially so if the engine over heated at all....Have it checked at an engineering company and skimmed if need be.... ....Regards Johngee10

2001 Daewoo Nubira 2.0L MFI DOHC 4cyl

The Head Bolt Torque ...

Torque sequence ------------------------- Front | 10 6 2 3 7 | of | 9 5 1 4 8 | Engine --------------------------

Step 1 - Torque to 18 ft/lbs Steps 2 - Turn 90 degrees Steps 3 - turn 90 degrees Steps 4 - turn 90 degrees Recheck final torque in sequence


Hope helps (remember rated and comment this).

Cylinder head bolt removal sequence


Removal sequence: Front 3 7 11 13 10 6 2 1 5 9 14 12 8 4

***CAUTION*** The above sequence must be followed during removal as to avoid warpage of the cylinder head unit

Reverse sequence to install, Step 1: Torque to 10 Ft/Lbs Step 2: Torque to 18 Ft/Lbs Step 3: Torque to 25 Ft/Lbs Step 4: Turn an additional 90 degrees Step 5: Turn an additional 90 degrees Step 6: Torque the 2 recessed 8mm bolts to 13 Ft/Lbs *** CAUTION *** engine uses Torque To Yield head bolts (TTY) that permanently stretch during the initial installation. New head bolts must be used when cylinder head is replaced or re-installed to obtain proper Torque

Don't forget to rate this answer, Good Luck

Torque sequence ------------------ front | 12 8 4 1 5 9 13 | of | | engine | 11 7 3 2 6 10 14 | ------------------ Final torque must be reached in 3 equal steps Step 1: torque all bolts (except bolt 11) to 110 Ft/Lbs Step 2: torque bolt 11 to 100 Ft/Lbs Recheck final torque in sequence.

1. Disconnect the negative battery cable.
2. Drain the cooling system.
3. Disconnect the hoses at the thermostat housing.
4. Properly relieve the fuel system pressure.
5. Remove the cylinder head cover.
6. Loosen the rocker arms.
7. Remove the pushrods.

The valvetrain components must be replaced in their original positions.

1. Remove the intake and exhaust manifold from the cylinder head.
2. Disconnect the spark plug wires and remove the spark plugs.
3. Disconnect the temperature sending unit wire, ignition coil and bracket assembly from the engine.
4. Remove the accessory drive belt(s).
5. Unbolt and set aside the power steering pump and bracket. Do not disconnect the hoses.
6. Remove the intake and exhaust manifold assembly.
7. If equipped with A/C, perform the following:
   1. Remove the compressor and position it aside with the lines attached.
   2. Remove the compressor bracket bolts from the cylinder head.
   3. Loosen the through bolt at the bottom of the bracket.
   
   
8. Remove the alternator.
9. Remove the cylinder head bolts, the cylinder head and gasket from the block.

Bolt No. 14 cannot be removed until the head is moved forward. Pull the bolt out as far as it will go and suspend in place by wrapping with tape.

1. Discard the gasket. Thoroughly clean the head-to-block mating surface.
2. Clean and inspect the cylinder head thoroughly. Refer to the engine reconditioning portion outlined later in this section.

To install:

1. Coat a new head gasket with suitable sealing compound and place it on the block. Most replacement gaskets will have the word TOP stamped on them.

Apply sealing compound only to the cylinder head gasket. Do not allow sealing compound to enter the cylinder bore.

Hope this helps, from autozone site. Curt
Application:
Cylinder head bolt torque sequence

Note :
Torque sequence:
---------
front | 3 1 6 |
of | |
vehicle | 5 2 4 |
---------
Step 1: Lightly oil cylinder bolt threads & washers
Step 2: Torque to 22 Ft/Lbs
Step 3: Torque to 51 Ft/Lbs
Step 4: Loosen all bolts 180 degrees
Step 5: Loosen all bolts 180 degrees
Step 6: Torque bolts 1 & 2 to 25 Ft/Lbs
Step 7: Torque bolts 3, 4, 5, 6 to 11 Ft/Lbs
Step 8: Turn all bolts an additional 80 to 90 degrees
Step 9: Turn all bolts an additional 80 to 90 degrees
*** CAUTION ***
engine uses Torque To Yield head bolts (TTY) that
permanently stretch during the initial installation.
New head bolts must be used when cylinder head is
replaced or re-installed to obtain proper Torque.

Head Bolt Torque For your 1994 Oldsmobile Cutlass Supreme (3.4L SFI DOHC): Foot pounds (Final torque) 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. Foot pounds (Final torque) 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.

 For your 1991 Jeep Cherokee 2WD 4.0L MFI :
  Foot pounds (Final torque) 

  Note:
  Torque sequence ------------------  
  front    | 12  8   4   1   5   9  13 | 
  of | | 
  engine | 11  7   3   2   6   10 14 | 
  ------------------  
Final torque must be reached in 3 equal steps  
  Step 1: torque all bolts (except bolt 11)  
  to 110 Ft/Lbs  
  Step 2: torque bolt 11 to 100 Ft/Lbs  
Recheck final torque in sequence