PatDezNuts

iTrader: (1)

Just wondering in replacing a part like the knock sensor, is it very dependant on the amount of foot lbs of pressure you use on the bolt? Is there any easy way to make sure you tighten this bolt to the right amount as not to damage it? Any advice would be appreciated before I replace. I looked at the info on

http://www.motorvate.ca/mvp.php/507 but I just wanted to see if anyone else had something to say on it.

natty99

iTrader: (6)

I just read a recent thread where someone mentioned that if the KS is secured too loosely, it will not give an accurate reading, and if tightened too much, it would be too sensitive (in addition to running the risk of cracking the plastic housing). Don't know if this is true or not, just re-hashing what I read.

BTW, when it comes to something as fragile and sensitive as sensors, would you really want to mess arround? Just tighten it to spec. Nissan engineers > you!

dgeesaman

iTrader: (10)

Well if you're doing it the shortcut way using a long extension, you won't get a torque wrench on it. The reason is because a universal joint transmits a different amount of torque depending on how it's rotated and the angle it's bent.

Like any bolt, too much torque and too little will cause problems. But if you have any kind of reasonable torque on it you should be fine.

I tightened the bolt by feel with the same amount of torque as a normal 12mm head bolt. But then I have in the past made an effort to develop a feel for a properly torqued bolt, and on small bolts like this it's actually less torque than you might instinctively feel is correct.

If you have a torque wrench you can tension a different bolt of the same size to the correct torque, and work it a little bit with the swivel&extension to develop a feel for this torque. Then final tighten the ks bolt based on that.

Dave

PatDezNuts

iTrader: (1)

Thanks for your advice.

PatDezNuts

iTrader: (1)

Well I went to go replace the part and it was not like the pictures on http://www.motorvate.ca/mvp.php/507 I think this is mostly because I have a 99 cali max and there is a plate in the way. So I take it the intake manifold has to be removed to replace this part?

JwaxMax99

iTrader: (14)

No, you can remove the swirl-valve junk to get to the KS opening.

rvaladez34

btw, ft-lbs isn't pressure, it's torque. psi is pressure

99BlackMaxMS

iTrader: (85)

Does the KS wire have anything to do with a bad KS? Ive heard stories of people changing the KS and still having the KS code after resetting the ECU numerous times. I just bought a new KS to put in and I want to know if new wiring is also necessary.