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Why head bolts torque are different from 2003 and 2005 1.8 nissan sentra?

I follow instructions for a 2003 which I have and car runs rough and engine code states bad head gaskets random misfires.

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I have never seen a code specifically identifying a blown head gasket. I checked the service manual and the procedure is the same.

4. Tighten cylinder head bolts (1) to (10) in numerical order as shown in 5 steps. Cylinder head bolts Step 1: 29.4 Nm (3.0 kg-m, 22 ft. lbs.) Step 2: 58,8 Nm (6.0 kg-m, 43 ft. lbs.) Step 3: 0 Nm (0 kg-m, 0 ft. lbs.) (loosen) Step 4: 27.4 - 31.4 Nm (2.8 - 3.2 kg-m, 21 - 23 ft. lbs.) Step 5: 50° - 55° (target: 50°) clockwise
why head bolts torque are different from 2003 and  - images-xozrttqlr3qpoa0t2tmccx0o-1-0.png To confirm it is a head gasket, do a compression and/or leak down test. Wouldn't hurt to pressure test your cooling system as well.

Posted on Apr 16, 2017

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How do you Replace Head Gasket for 2002 Nissan Sentra GXE ?


Big difference between valve cover gasket and head gasket. To replace head gasket, you must dissamble top end of engine and send the head out to be resurfaced and then install new head gasket. If it is a leaking valve cover it is much easier. Simply dissasemble and then clean valve cover and top of head from all debris and remove all old gasket material. Tighten back down in sequence and do not over tighten. these small bolts can be overtightened easily so go in sequence just like when you tighten lug nuts by skipping one as you go around. 10mm bolts require about 10 pounds or less torque.

Jul 18, 2014 | 2002 Nissan Sentra

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How much n- m must i torque my nissan sentra 1400 gxi cylinder head


1.8L 4 cylinder

cylinder head bolt torque

bolts 1-10 ( large bolts )

step 1 21 ft lbs.
step 2 44 ft lbs.
step 3 loosen all bolts
step 4 21 ft lbs.
step 5 additional 50-55 degrees

bolts 11-15 small bolts

56-74 in. lbs

2.0L 4 cylinder

step 1 29 ft lbs.
step 2 58 ft lbs.
step 3 loosen all bolts
step 4 23-25 ft lbs.
step 5 additional 90-95 degrees
step 6 additional 90-95 degrees

Apr 30, 2011 | 2000 Nissan Sentra

1 Answer

What is the cylinder head torque spec for a 2005 nissan sentra 1.8 liter engine


  1. For 1.8L engines, tighten the bolts in sequence, as follows:
    1. Step 1: Bolts 1-10 to 22 ft. lbs. (29 Nm).
    2. Step 2: Bolts 1-10 to 43 ft. lbs. (59 Nm).
    3. Step 3: Loosen bolts 1-10 completely.
    4. Step 4: Bolts 1-10 to 22 ft. lbs. (29 Nm).
    5. Step 5: Bolts 1-10 plus 50-55 degrees.
    6. Step 5: Bolts 11-14 to 74 inch lbs. (8 Nm).

      0900c152801afb79.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Cylinder head torque sequence-1.8L engine


      0900c152801afad8.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Tighten the valve cover bolts in sequence-1.6L and 1.8L engines

Nov 13, 2009 | 2005 Nissan Sentra

3 Answers

Torque settings for cylinder head nissan sentra


Tighten in sequence to 29ft.lbs then tighten in sequence to 58ft lbs. then loosen all bolts. Then tighten in sequence to 33ft lbs. then tighten each bolt in sequence 90 degrees then tighten each bolt again 90 degrees

Jul 18, 2009 | 1999 Nissan Sentra

1 Answer

Engine head torque settings for 2005 nissan sentra 1.8


email me ill send you it via email cant post here too bigg!!

May 29, 2009 | 2005 Nissan Sentra

1 Answer

Need engine head torque settings for 2005 nissan sentra 1.8


this is a 6 step procedure first tighten to 37 ft pounds all bolts step 2 turn all bolts 60 degrees step 3 loosen all bolts step 4 retighten to 30 ft pounds step 5 turn bolts 75 degrees and step 6 turn all bolt another 75 degrees

May 29, 2009 | 2005 Nissan Sentra

1 Answer

Need 1990 nissan sentra torque settings and valve clearence


heinrichkemp: The engine in your car is a GA16i
I venture you are asking about the head bolts when you refer to torque settings. The head bolts used on this motor are torque to yield (streach bolts) If you are reusing them, you need to check them to insure they are not stretched beyond limits.
The way you measure the bolt is with a micrometer.
Measuring close to the end where the bolt starts to thread in, about 10-12 threads up, take a reading. Now, go to the other end of the bolt where the threads end and measure about 10 threads in.
There should not be more than a .009 inch difference (.228mm). If there is, discard the bold and get a new one.

You must use a sequence to tighten the bolts, below is the sequence.
11
13 9 3 1 6 8

14 7 5 2 4 10
12 15

torque 11,12,13,14 & 15 to 8.3 Nm (6.1 ft lbs)
Torque the main head bolts by the numbered sequence to
29Nm (22 ft lbs) first pull
64Nm (47 ft lbs) second pull
Loosten all the bolts completely
Tighten the to 29Nm (22 ft lbs) first pull
Tighten bolt # 1 clockwise 85 degrees
Tighten bolts #2- 10 65 degrees
Nissan noted that if you do not have a torque angel meter, you can use a regular torque wrench and torque all the bolts to 69Nm (51 ft lbs)
The valves on this engine have hydraulic lifters, consequently require no adjustment.

Apr 11, 2009 | 1990 Nissan Sentra

2 Answers

Replaced head gasket


try autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you

Mar 20, 2009 | 2003 Nissan Sentra

1 Answer

Hi I ned to know about head bolt torque nissan sentra 1997


hi.im a mechanic from the philippines.the torque of all your cylinder head for your nissan sentra 1997 is 60 nm.apply 30 nm of torque first on all the cylinderhead bolts then torque it agian directly to 60 nm. i also drive and repair nissan cars.

Aug 07, 2008 | 1989 Nissan Sentra 4 Door

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