Question about Cars & Trucks
Posted by Anonymous on
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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
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
Posted on Jul 26, 2009
hi to tighten you have to do it in 4 stages as follows
1st stage 40nm leave 5 mins 2nd stage 60nm leave 5 mins 3rd stage 90 degrees leave 10 mins 4th stage 90 degrees then you are done i will try put order on here i hope this works as follows
10 4 2 6 8 front of engine back of engine 7 5 1 3 9
in that order hope this helps
Posted on May 10, 2010
Tips for a great answer:
May 29, 2014 | Nissan 200 Cars & Trucks
on Jul 08, 2010 | Nissan Altima Cars & Trucks
Fig. Cylinder head bolt loosening sequence - Altima & Maxima 3.5L engine
Install the cylinder head bolts and torque in sequence as follows:
Apr 12, 2012 | Cars & Trucks
Feb 17, 2012 | Nissan Cars & Trucks
Feb 17, 2012 | Nissan Maxima Cars & Trucks
Apr 30, 2011 | 2000 Nissan Sentra
Apr 10, 2011 | 2002 Volkswagen Beetle Turbo S
May 10, 2010 | 1986 Volkswagen Golf
Jul 18, 2009 | 1999 Nissan Sentra
Aug 07, 2008 | 1989 Nissan Sentra 4 Door
32 people viewed this question
Usually answered in minutes!