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Head bolts torque specs and sequence

3400 SFI engine

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: i need the engine torque specs for 99 chevy malibu

99 chevy malibu v6 3.1 engine, head bolt torque is-- 98 through 2001 is step1- 37 foot lbs, step 2- rotate an additional 90 degrees (1/4 turn). the rocker arm bolts are 168-in. lbs.

Posted on Sep 07, 2010

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SOURCE: Engine Bolt Torques- 2005 Chevy Impala/3400 Engine

Head Bolts
Step one 37 ft lbs then tignten 120 degrees more

Rocker arms
Step one 11 ft lbs then tighten 90 degresss more

Upper intake
89 inch lbs
Lower intake
132 inch lbs

Posted on Dec 02, 2008

rutherford_m
  • 63 Answers

SOURCE: head bolt torque specs and sequence for early 350 malibu motor

There are two different torque specs for this engine depending on which bolts you are torquing. This engine uses three different length bolts, the two sets of longer bolts can be torqued to 70 foot pounds, the short set of bolts that go along the bottom of the head should be torqued to 65 foot pounds. Head surface and block surface should be clean, straight and the a new head gasket should be used.

An easy way to guide yourself in the proper sequence is to make a cheat sheet of sorts. Take the headgasket and piece of cardboard about the same size. Using the headgasket as a template, mark each of the bolt holes on the cardboard with a sharpee marker, pencil or pen. Also outline the headgasket and mark the top of your drawing. Now starting from the center bolt as number 1, move either to the right or left, up or down to the next bolt hole and mark that as number 2. Now move to the bolt hole diagonally across from number 2, past Number 1 and mark it as number 3. Continue this sequence of moving diagonally back and forth across the headgasket outline until all of the bolt holes are marked with a number. What you are trying to do is start at the center of the head tightening it down in steps of about 15 foot pounds moving out from the center.

I have built a lot of these engines over the years and they are very forgiving of the head torquing sequence. As long as you start at the center and move out left and right, up and down alternating back and forth, you will have no problems. As a final check once you are done, check the torque on each head bolt to make sure you have not missed one. This does not have to be done in any sequence and you will then be sure that you have it completed properly. Good luck.

Posted on Apr 27, 2010

  • 95 Answers

SOURCE: 1997 cavalier head gasket replacement with a 2.2.

Go onto Autozone.com and sign up for their online repair. It is free to use but you have to register.

Posted on Dec 03, 2010

  • 879 Answers

SOURCE: torque for head bolts

Contact the service center to buy them. Cost will be more.

Posted on Aug 12, 2012

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Torque sequence 3400 engine upper intake


starting at the middle bolt and go directly across then criss cross the pattern like you would tightening wheel nuts, towards the outside(end) bolts. if this is a plastic upper intake the torque should be around 15ft lbs if its metal around 25ft lbs.

Sep 04, 2014 | Chevrolet Venture Cars & Trucks

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

I need the tork spec on 1998 Buick 3800 block for the cylinder head.


hope this helps,

Torque sequence --------- front ' 6 1 3 7 ' of ' ' engine ' 8 4 2 5 ' --------- Step 1: torque bolts in sequence to 37 Ft/Lbs Step 2: torque all bolts in sequence an additional 120 degrees Step 3: torque bolts 1,2,3, & 4 an additional 30 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.
always torque from center
Tighten each bolt an additional 90° in sequence.


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Jun 18, 2011 | 1998 Buick LeSabre

2 Answers

What are the head torque specs?


1996 Isuzu Truck Hombre 2.2L SFI 4cyl

zjlimited_545.jpg

Fig.: Cylinder head bolt torque sequence-2.2L engine

Apply a coating of 1052080 or equivalent sealer to the cylinder head bolt threads. Install the cylinder head bolts (within 15 minutes of sealer application), then tighten them in the proper sequence first to a torque of 46 ft. lbs. (63 Nm) for long bolts or to 43 ft. lbs. (58 Nm) for short bolts and then tighten all bolts an additional 90 degree turn using a torque angle meter.

Hope this helps (remember to rate this answer).

Jan 25, 2011 | 1996 Isuzu Hombre

2 Answers

1997 cavalier head gasket replacement with a 2.2. Also need the torque specs and sequence for the head bolts


Go onto Autozone.com and sign up for their online repair. It is free to use but you have to register.

Nov 16, 2010 | 1997 Chevrolet Cavalier

1 Answer

I need torque specs for the head bolts on a 2004 Dodge Stratus Coupe 2.4L SOHC


For 2004 Dodge Stratus 2.4L SFI SOHC 4cyl the Head Bolt Torque sequence
------------ | 10 6 2 3 7 | | 9 5 1 4 8 | ------------

Step: 1 - Torque to 25 ft/lbs
Steps: 2 - Torque to 50 ft/lbs
Steps: 3 - Torque to 50 ft/lbs
Steps: 4 - Turn 90 degreesRecheck final torque in sequence

Caution:Engine uses torque to yield head bolts (TTY) that permanently stretch during initial installation. New head bolts must be used when cylinder headis replaced or re installed to obtain proper torque specification.

Hope helps (remember comment and rated this).

Aug 02, 2010 | 2004 Dodge Stratus

1 Answer

Engine torque specs for 1996 chevy cavalier 2.2l


For 1996 Chevrolet Cavalier 2.2L SFI OHV 4cyl the check the next Head Bolt Torque sequence...

------------ front | 8 4 1 5 9 | of | | engine | 7 3 2 6 10 | ------------

Step 1: torque long bolts 8,4,1,5, & 9 to 46 Ft/Lbs torque short bolts 7,3,2,6, & 10 to 43 Ft/Lbs
Step 2: torque all bolts 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.

Hope helps (remnember rated this).

Jul 15, 2010 | 1996 Chevrolet Cavalier

3 Answers

Need to know the head bolts torch specs on 98 toyota v6


heres the torque specs and the way to tighten the head bolts for your 1998 toyota sienna, hope this helps,
12 point bolts step 1- 40 ft lbs
step 2- additional 90 degrees
recessed bolt 13 ftlbsaf151d2.gif

May 12, 2010 | 1998 Toyota Sienna

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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