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Nissan VQ 25 DE engine

Need some help with the repair for a blown head gasket. ie disasasemble procedure Cheers

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

cortez_marco
  • 58 Answers

SOURCE: how to replace blown head gasket

u have to start by removeing ur headers dont forget to take ur blown gasket to ur local part store to make shure u get the rigth one

Posted on Feb 18, 2009

  • 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

keithheavili
  • 410 Answers

SOURCE: 1998 nissan Altima blown head gasket repair price

It's really hard to tell how much it will cost to fix this because you don't know how much damage has been done to the engine itself because of the blown head gasket. Assuming you caught it early and there is no damage to the engine, you are looking somewhere between $1100 - $1400. A website you can look at that gives you prices for repair estimates is http://www.repairpal.com. Thanks for rating my response but please let me know if you have any more questions before deciding you give a poor rating. Thanks for using FixYa!

Posted on Jul 12, 2009

  • 1 Answer

SOURCE: need to replace blown head gasket on the above vehicle

are you sure head is not cracked

Posted on Aug 07, 2009

  • 3741 Answers

SOURCE: Head gasket blown. What is approximate cost to

    Considerations
  1. Many internal engine problems, such as a blown head gasket, cracked head or cracked piston, can be repaired without having to replace an entire engine.
  2. Potential
  3. While taking the time to replace an engine may seem labor-intensive and costly, it will add years to a vehicle's life and will save a car owner from the cost of having to buy a new car.
  4. Benefits
  5. Taking a car to a mechanic and replacing an engine with a used engine can cost between $1,000 to $2,000 for parts and labor.
  6. Solution
  7. Car owners interested in replacing their engines with new ones can expect to pay anywhere between $2,000 to $4,000.
  8. Speculation
  9. For those interested in doing the engine replacement themselves, purchasing specialized tools needed for the job is a cost to consider in addition to the price of a replacement engine.

Posted on Nov 16, 2009

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1 Answer

Blown head gasket


Well it would really depend on the condition of your engine.
It would take more labor to repair your engine than it would to just replace it. But unless the engine is very damaged it should be cheaper to have your engine fixed. And replacing the head gasket and having the head repaired should be under the price you were given. A head gasket set for a 4 cyl engine is around $100 wholesale.
I would call around and check with other shops next.

Jul 17, 2013 | Nissan Cars & Trucks

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What is a blown head gasket?


a blown head gasket is the gasket between the bottom half of the engine and the top , a blown head gasket can cause many problems ,ie oil water getting into the pistons ,

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blown head gasket. do not start the vehicle until this is fixed. running with a blown head gasket can lock up the engine.

Mar 12, 2011 | 2000 Nissan Maxima

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How can i remove and install a blown head gasket the right way, from a nissan sentra 1.8 (QG18DE)? please help.


You should get a service (shop) manual which describes this procedure. (You may be able to borrow one from your local public library, but I think they are worth buying).
If this is an overhead cam (cam-in-head) engine, you will need to turn the engine until the timing marks on the cam and crank line up, so that you can put it back together correctly.
You will also need the head bolt tightening (torque) sequence, the bolts have to be tightened in a certain order to the correct torque value.
You might want to replace the water pump at the same time, as you will be taking off everything (and more) that you would have to take off to replace it, and unless you have done that recently, it is about due anyway.
This is MAJOR engine work, unless you have done a fair bit of repairs before, you might not want to attempt this yourself.

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Does the 2005 nissan sentra 1.8L have problems with head gasket blowing ?


Not generally, unless the engine's been run hot, if even only for a moment. If the head gasket is blown prepare for major out of pocket expenses because if the engine overheated it will bend every valve and usually warp the head beyond repair. I honestly hope this is not your problem, it's an extremely expensive fix. Hope this helps, good luck!

Sep 02, 2009 | 2004 Nissan Sentra

1 Answer

1998 nissan Altima blown head gasket repair price


It's really hard to tell how much it will cost to fix this because you don't know how much damage has been done to the engine itself because of the blown head gasket. Assuming you caught it early and there is no damage to the engine, you are looking somewhere between $1100 - $1400. A website you can look at that gives you prices for repair estimates is http://www.repairpal.com. Thanks for rating my response but please let me know if you have any more questions before deciding you give a poor rating. Thanks for using FixYa!

Jul 12, 2009 | 1998 Nissan Altima

1 Answer

Engine oil going into the radiator on my 2003 nissan maxima


See if the intake has blown a gasket it could be leaking water into theoil. If its getting hot then you probly have a blown head gasket. Julie

Apr 06, 2009 | 2003 Nissan Maxima

1 Answer

Head gasket 'blown' on 94 Nissan Cefiro, 2.5L, 24


if you get a haynes repair manual and follow it step by step everything should go fine. or clintons. if you have questions about what its telling you to do then that would be a good thing to ask. the problem is there are alot of different designs for engines and it could be affected and it could not be. but if your not sure you definitly need a repair manual. it would tell you everything but it will guide you in the right direction

Mar 20, 2009 | 1994 Nissan Maxima

1 Answer

Engine knocks and car won't go over 25 mph.


You have a blown engine cylinder head gasket.

Nov 12, 2008 | 1988 Nissan Sentra 2 Door

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