Question about 2002 Nissan Altima

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I need to know the torque of 2002 altima 2.5 cylinder head bolts

Posted by Anonymous on

4 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 383 Answers

SOURCE: replacement of a head gasket on 2.5 liter nissan altima 2002

frajogag: First off, be aware that these bolts are "torque to yield" bolts (streach bolts). What this means is that instead of torqueing the head bolts to a specific torque specification, they are torqued down to a set spec and then tightened by rotating the bolts a certain angle, like 90 degrees. and all of them are turned the same amount.
This means that the shanks of the bolts must be checked to make sure they are not too thin (or the bolt has already stretched beyond limits and is prone to snap if used)
Here is how you check the bolts. Measure the bolt using a micrometer, at the base, or within the first 13mm from the end where it threads in. Then go to about 10mm before the threads end heading toward the top of the bolt. There should not be more than a 0.23mm (.0091 inch) or less difference or the bolt should be discarded.
Torque the bolts down to 98.1Nm ( 72.ft lb)
Looking at the head from the side, so you are looking at the full length from side to side, I will number the head bolts in this fashion.
#1 & 2 are directly in front of you and in the center of the cylinder head crossing it width wise.
#3&4 are to the left of #1&2, / #5&6 are to the right of #1&2
#7&8 are to the left of #3&4 / #9$10 are to the right of #5&6
Now, you have the sequence.
After the initial pull, back off all the bolts in the same sequence and then retorque them to 36 Nm ( 28 ft lb)
Using a torque angle wrench or having the ability to accurately judge turning angles. Rotate (clockwise) to a 75 degree angle. do this to all the bolts using the sequence I had provided.
Rotate the bolts (clockwise) 75 degrees again on all bolts in the same sequence. The proceedure is complete!

Posted on Apr 23, 2009

  • 36 Answers

SOURCE: I need head bolt torque sequence for 2002 nissan

So 80 degrees is approx. how many ft lbs.

Posted on Jun 19, 2010

clifford224
  • 1975 Answers

SOURCE: i recently blew a head

Below I posted the information you needed. The cam is easy, just do it in order and by the torque specs. the cylinder head you must be very detailed with and follow the indtructions to the letter or you will be waisting your time. If you have any other questions or need any pictures feel free to email me at csautomotivecars@att.net and be detailed as to what you need so I'm sure to send the right stuff. I hope this helps and good luck. By the way since you have the engine pretty much torn down, have you thought about the oil pump as well. that engine is famous for them going and would think about replacing as well to be on the safe side. I believe the cost including a new timing cover with it is about $150.00. It might be worth the extra $$$ while you're putting so much into it already....Just a thought. Do this for a living and have seen it a lot.


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Posted on May 14, 2011

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1 Answer

I need too know the torque specs on head bolts and crankcam 2.4 engine


on a 2002 2.4 engine head bolts are 'torqued to distance'.

First, install all the bolts, and, in a sequential fashion, starting at the innermost, working outward, torque all bolts to 70 N-m/806 kgf-cm/58 foot lbs.

Next, mark the front side of each head bolt with a dot of paint. Retighten the cylinder head bolts 90 degrees, starting at the inner 2, and working outward.I dont thin anything has changed on this engine since then.

Mar 19, 2013 | 2005 Toyota Camry XLE

Tip

Nissan altima 2.4 L torque specs.


Torque sequence ---------------- | 9 3 1 6 8 | | 7 5 2 4 10 | ---------------- Step 1: Torque in sequence 22 Ft/Lbs Step 2: Torque in sequence 58 Ft/Lbs Step 3: Loosen all bolts completely Step 4: Retorque all bolts in sequence 22 Ft/Lbs Step 5: Retorque all bolts in sequence 54-61 Ft/Lbs 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. 0900c15280265395.jpg

on Jul 08, 2010 | Nissan Altima Cars & Trucks

2 Answers

I need head bolt torque sequence for 2002 nissan altima 2.5s engine


hello I have 2007altima 2.5s will replace the gasket I just want to know what is the torque for mounting screws

Aug 15, 2012 | 2002 Nissan Altima

1 Answer

2002nissan3.5cylinderheadtorque



2_17_2012_6_58_18_pm.jpg

Fig. Cylinder head bolt loosening sequence - Altima & Maxima 3.5L engine

Install the cylinder head bolts and torque in sequence as follows:

  1. Step 1: 72 ft. lbs. (98 Nm).
  2. Step 2: Completely loosen all bolts.
  3. Step 3: 26-32 ft. lbs. (34-44 Nm).
  4. Step 4: plus 90-95 degrees clockwise.
  5. Step 5: plus 90-95 degrees clockwise.

2_17_2012_6_59_54_pm.jpg

Fig. Right cylinder head bolt torque sequence- Altima & Maxima 3.5L engine


2_17_2012_7_00_21_pm.jpg

Fig. Left cylinder head bolt torque sequence- Altima & Maxima 3.5L engine

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.

Apr 12, 2012 | Cars & Trucks

2 Answers

2002 nissan maxima 3.5 cylinder head torque


Hi there:

2_17_2012_6_58_18_pm.jpg

Fig. Cylinder head bolt loosening sequence - Altima & Maxima 3.5L engine

Install the cylinder head bolts and torque in sequence as follows:
  1. Step 1: 72 ft. lbs. (98 Nm).
  2. Step 2: Completely loosen all bolts.
  3. Step 3: 26-32 ft. lbs. (34-44 Nm).
  4. Step 4: plus 90-95 degrees clockwise.
  5. Step 5: plus 90-95 degrees clockwise.

2_17_2012_6_59_54_pm.jpg

Fig. Right cylinder head bolt torque sequence- Altima & Maxima 3.5L engine


2_17_2012_7_00_21_pm.jpg

Fig. Left cylinder head bolt torque sequence- Altima & Maxima 3.5L engine

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, have a nice day

Feb 17, 2012 | Nissan Cars & Trucks

1 Answer

Torque setting head 2002 nissan maxima


Hi there:

2_17_2012_6_58_18_pm.jpg

Fig. Cylinder head bolt loosening sequence - Altima & Maxima 3.5L engine

Install the cylinder head bolts and torque in sequence as follows:
  1. Step 1: 72 ft. lbs. (98 Nm).
  2. Step 2: Completely loosen all bolts.
  3. Step 3: 26-32 ft. lbs. (34-44 Nm).
  4. Step 4: plus 90-95 degrees clockwise.
  5. Step 5: plus 90-95 degrees clockwise.

2_17_2012_6_59_54_pm.jpg

Fig. Right cylinder head bolt torque sequence- Altima & Maxima 3.5L engine


2_17_2012_7_00_21_pm.jpg

Fig. Left cylinder head bolt torque sequence- Altima & Maxima 3.5L engine

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, have a nice day.

Feb 17, 2012 | Nissan Maxima Cars & Trucks

1 Answer

Want to know the amount of torque pressure do i use when tightening the head bolts, and whats the sequence?


To install:

0996b43f80208f65.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Cylinder head bolt torque sequence-3.8L engine

  1. Install the new cylinder head gasket with the arrow pointing to the front of the engine.
  2. Install the cylinder head.
  3. Install NEW cylinder head bolts. Torque the bolts in sequence, as follows:
    1. Step 1: 37 ft. lbs. (50 Nm).
    2. Step 2: Plus 120 degree turn.
To install:

0996b43f802316ea.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Tighten the cylinder head bolts using the following sequence-31L and 3.4L engines

  1. Install the cylinder head with a new gasket.
  2. Apply thread sealer to the head bolts.
  3. Tighten the cylinder head bolts to 37 ft. lbs. (50 Nm) plus an additional 90 degree turn.

Dec 16, 2010 | 2002 Pontiac Grand Prix

1 Answer

Replacement of a head gasket on 2.5 liter nissan altima 2002


frajogag: First off, be aware that these bolts are "torque to yield" bolts (streach bolts). What this means is that instead of torqueing the head bolts to a specific torque specification, they are torqued down to a set spec and then tightened by rotating the bolts a certain angle, like 90 degrees. and all of them are turned the same amount.
This means that the shanks of the bolts must be checked to make sure they are not too thin (or the bolt has already stretched beyond limits and is prone to snap if used)
Here is how you check the bolts. Measure the bolt using a micrometer, at the base, or within the first 13mm from the end where it threads in. Then go to about 10mm before the threads end heading toward the top of the bolt. There should not be more than a 0.23mm (.0091 inch) or less difference or the bolt should be discarded.
Torque the bolts down to 98.1Nm ( 72.ft lb)
Looking at the head from the side, so you are looking at the full length from side to side, I will number the head bolts in this fashion.
#1 & 2 are directly in front of you and in the center of the cylinder head crossing it width wise.
#3&4 are to the left of #1&2, / #5&6 are to the right of #1&2
#7&8 are to the left of #3&4 / #9$10 are to the right of #5&6
Now, you have the sequence.
After the initial pull, back off all the bolts in the same sequence and then retorque them to 36 Nm ( 28 ft lb)
Using a torque angle wrench or having the ability to accurately judge turning angles. Rotate (clockwise) to a 75 degree angle. do this to all the bolts using the sequence I had provided.
Rotate the bolts (clockwise) 75 degrees again on all bolts in the same sequence. The proceedure is complete!

Mar 10, 2009 | 2002 Nissan Altima

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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