Chevy trailblazer 4.2 6 cylinder head bolt torque in ft/lbs only and sequence

1. Tighten the cylinder head bolts in the sequence shown. Using the 4 step torque turn method, tighten according to the following values:

• • Step 1: All to 34 Nm (25 ft. lbs.)
  • Step 2: All to 68 Nm (50 ft. lbs.)
  • Step 3: All to 68 Nm (50 ft. lbs.)

CAUTION: Do not use a torque wrench for the following step.
Step 4: Turn an additional 1/4 turn

• Step 5: Install and tighten bolts (1-10) in sequence shown, to 41 Nm (30 ft. lbs.) .

1. Tighten bolts (1-10) again to 41 Nm (30 ft. lbs.) PLUS 1/4 turn in sequence shown.
2. Install main bearing bedplate to engine block bolts (11-20), and torque each bolt to 28 Nm (20 ft. lbs.) in sequence shown.

Connecting Rod Cap Bolts 54 Nm (40 ft. lbs.) + 1/4 turn
1997 Jetta: Torque settings..vw..the head, fly wheel, big ends.


1997 Jetta3 1800 feul injection


Vibration Damper/belt Pulley
Tighten 20 Nm (14.8 ft lb) Crankshaft Toothed Belt Sprocket Tighten 90 Nm (66 ft lb) + 90° Camshaft Sprocket Tighten 80 Nm (60 ft lb) Main Bearing Cap
Tighten 65 Nm (48 ft lb) FLYWHEEL TORQUE
Torque 60 Nm. (44 ft. lbs.) + 1/4 turn (90°) [1] [1] Always replace bolts.
CYLINDER HEAD TIGHTENING TORQUE [1] :
1st sequence: 40 Nm (30 ft lb)
2nd sequence: 60 Nm (43 ft lb)
Final sequence: plus 1/2 turn (180°)
Here are some additional specifications, thanks
ntake Manifold
Mounting Bolts 25 Nm (18 ft. lbs.) Bearing Cap Nut 20 Nm (15 ft. lbs.) Rod Bearing Cap
Assembly
Tighten 30 Nm (22 ft lb) + 90° To measure radial clearance
Tighten 30 Nm (22 ft lb) but NOT additional 90° TIGHTENING SPECIFICATIONS
Oil Pump Bolt 20 Nm (14 ft. lbs.) Oil Tube To Block 10 Nm (7 ft. lbs.) Exhaust Manifold to Cyl. Head 25 Nm (18 ft lb) Exhaust Manifold to Front Exhaust Pipe 40 Nm (30 ft lb) Water Pump
TIGHTENING SPECIFICATIONS
Cover Bolts 10 Nm (7 ft. lbs.) Mounting Bolt and Studs 20 Nm (15 ft. lbs.) + 1/4 turn (90°) Pulley Bolts 25 Nm (18 ft. lbs.)

TIGHTENING SPECIFICATIONS
Connecting Rod Nuts:
Tighten In Two Stages:
First Stage 30 Nm (22 ft. lbs.) Second Stage turn an additional 90°(1/4 turn)

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.

Torque sequence ----------- ' 9 7 3 1 5 ' ' 8 4 2 6 ' ----------- Step 1: torque in sequence to 45 Ft/Lbs Step 2: torque in sequence to 65 Ft/Lbs Step 3: torque in sequence to 65 Ft/Lbs again plus 1/4 turn Step 4: Torque small bolt in rear of head to 25 Ft/Lb 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.
3.3L

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!

Please don't forget to rate. Thank you:

Left side front cylinder head



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:



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).

Cylinder heat bolt torque:
Torque sequence --------- front | 7 3 1 5 | | 8 4 2 6 | --------- Step 1: Torque all bolts in sequence to 14 Ft/Lbs Step 2: Torque all bolts in sequence to 29 Ft/Lbs Step 3: Torque all bolts in sequence to 36 Ft/Lbs Step 4: in the sequence, loosen the cylinder head bolts three turns. Step 5: Tighten short bolt to 15 - 32 Ft/Lbs Step 6: Tighten long bolt to 30 - 36 Ft/Lbs Step 7: Tighten all bolt to 175- 185 degree note: Do not loosen all of the cylinder head bolts at one time. Each cylinder head bolt must be loosened and the final tightening prior on the next bolt in the sequence.
Main bearing torque:
Torque sequence: Step 1: torque bolts to 91 Ft/Lbs with the exception of the rear main bearing cap Step 2: torque rear main bearing cap bolts to 88 Ft/Lbs Step 3: torque brace bolts to 40 Ft/Lbs
Connecting rod torque:
Torque sequence Step 1: Torque to 29 Ft/Lbs Step 2: Turn an additional 90 degrees

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

Please don't forget to rate. Thank you:

Left side front cylinder head



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:



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).

Tighten the cylinder head bolts 1 - 8 in the sequence shown in Cylinder Head Bolts Location and Tightening Sequence Using the 4 step torque turn method, tighten according to the following values:
Step 1: Bolts 1 - 8 to 61 N·m (45 ft. lbs.)
Step 2: Bolts 1 - 8 to 88 N·m (65 ft. lbs.)
Step 3: Bolts 1 - 8 (again) to 88 N·m (65 ft. lbs.)
Step 4: Bolts 1 - 8 turn an additional 1/4 Turn. (Do not use a torque wrench for this step.)
NOTE: Bolt torque after 1/4 turn should be over 122 N·m (90 ft. lbs.) If not, replace the bolt.

Tighten head bolt number 9 Cylinder Head Bolts Location and Tightening Sequence to 33 N·m (25 ft. lbs.) after head bolts 1 - 8 have been tighten to specifications.