Question about 2006 Nissan Xterra

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Replacing the Cylinder head on a QR20 engine

Would like to know the tightening sequence and the torque specification for this task
thanks

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Hello. I can help you out. Just need to know if it is 2x4 or 4x4 and what liter size is this engine?
You can go to autozone.com and register for free and you will get full free online repair manual.
Just let me know.

Posted on Nov 15, 2009

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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

99 Honda civic 1.6 engine torque specs and sequences for cylinder head


Tighten the cylinder head bolts to their final torque specification in two steps. Use a crisscross sequence starting with the bolts at the middle of the head and working toward the outer bolts.
  1. Step 1: Tighten each bolt to 22 ft. lbs. (30 Nm).
  2. Step 2: Tighten each bolt to 61 ft. lbs. (85 Nm).

zjlimited_1681.jpg

Fig. Cylinder head bolt loosening sequence - 1.6L (B16A2) engines (click image for zoom)

Hope helps.

Aug 05, 2011 | 1999 Honda Civic

1 Answer

Hi i'm eduardo and i have a '94 nissan pathfinder 4wd...engine 3.0.... i want to know the head torque specifications .


Hi Eduardo:
Check this information (click over pics for zoom)...

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Fig. 20: Exploded view of the cylinder head assembly-VG30E engine


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Fig. 15: Cylinder head loosening sequence-VG30i and VG30E engines


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Fig. 17: Cylinder head torque sequence-VG30i and VG30E engines


Install the cylinder head with a new gasket. Apply clean engine oil to the bolt threads and seats, then install the bolts with washers (beveled edges up) in the correct position. Note that bolts 4, 5, 12 and 13 measure 5.00 in. (127mm), and are longer than the others. The other bolts are 4.17 in. (106mm) long.

Tighten the bolts in the proper sequence, in the following stages:
Tighten all bolts, in order, to 22 ft. lbs. (29 Nm).
Tighten all bolts, in order, to 43 ft. lbs. (59 Nm).
Loosen all bolts completely.
Tighten all bolts, in order, to 22 ft. lbs. (29 Nm).
Tighten all bolts, in order, to 40-47 ft. lbs. (54-64 Nm). Or, if you have an angle torque wrench available, tighten them an additional 60-65 degrees.


Hope this helps; remember to rate this answer. Good luck.

Apr 22, 2011 | Nissan Pathfinder Cars & Trucks

1 Answer

Correct pressure for torque the head of mazda pickup 1998


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!

Feb 06, 2011 | 1998 Mazda Pickup

1 Answer

Can you tell me the torque spec.on head bolts for a 1985 ltd 3.8 thank you


Six IN LINE - 6L

zjlimited_510.jpg

Fig.: Cylinder head torque sequence - 6 -cylinder engine



Cylinder head torquing should proceed in three steps and in the prescribed order. Tighten them first to 50-55 ft. lbs. (65-71 Nm), then give them a second tightening to 60-65 ft. lbs. (78-84 Nm). The final step is to 70-75 ft. lbs. (91-97 Nm), at which they should remain undisturbed.


Six IN V - 6V

zjlimited_511.jpg

Fig.: Cylinder head bolt torque sequence - 6 -cylinder engine

Tighten the head, according to the illustrated sequence in three progressive steps. Tighten the bolts to 50-55 ft. lbs. (68-74 Nm), then 60-65 ft. lbs. (81-88 Nm) and finally to 75 ft. lbs. (102 Nm).


Hope this helps (remember to rate and commene this answer).

Jan 19, 2011 | 1985 Ford LTD

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

What is the right Torque Specification of the cylinder head bolt,main bearing and connecting rod bearing for a 1997 Ford F 150 4.2 liter? Thank you...


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

May 17, 2010 | 1997 Ford F150 Regular Cab

1 Answer

I am looking for the cylinder head torque specification for the 3.3litre chrysler town and country 2003


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.

Jan 24, 2010 | 2003 Chrysler Town & Country

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