Question about Cars & Trucks
What are the torque specs for camshaft on a 2002 Nissan Altima 2.5L
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
SOURCE: where crank shaft and camshaft?
The camshaft position sensor is located on the timing cover, near the top of the motor. The crankshaft position sensor is located on the same timing cover near the crankshaft. Just a side note, more than likely the crankshaft position is your issue and it's under a recall from Nissan and they will replace it for free.
Posted on May 23, 2009
All you really need is a good set of spark plugs, this car has coil packs so no plug wires distributor caps etc.....Just remove the coil packs and install your plugs and your done. Good luck.
Posted on May 31, 2009
You have to identify where the oil is leaking. Check the spark plugs if it has oil, you may just need to replace the oil seal in the plugs. If you meant actual burning from the exhaust, you may want to check the head gasket and the piston rings if the oil seeps into the combustion chamber.
Posted on Jul 08, 2009
You are incorrect sir. There is a very good Youtube video showing you exactly where it is that is how I changed mine. The Crankshaft is located behind the engine block below and around from the cam sensor which is easly spotted looking at the engine. The crankshaft is in a difficult spot but once you figure out where it is it's easy...ish hope this helps
Posted on Dec 10, 2009
Tips for a great answer:
Dec 19, 2016 | 2002 Nissan Altima
Jun 16, 2016 | 2003 Nissan Altima
May 06, 2016 | 2007 Nissan Altima 2.5
Apr 09, 2015 | 2009 Nissan Altima 2.5 S
Oct 20, 2014 | 2005 Nissan Altima
Aug 11, 2014 | 2002 Nissan Altima
Mar 23, 2012 | 2005 Nissan Altima 2.5
Sep 10, 2011 | Nissan Altima Cars & Trucks
May 17, 2011 | 2002 Nissan Altima
70 people viewed this question
Usually answered in minutes!