Fixed a Nismo LSD lately and the diff makes a very anoying clickings and solid knokings on low speed turns and specially when cold.

The diff is set on medium. What will help to minimize the problem? Shall I set it on maximum or minimum?

Thanks

 

Im pretty sure they all make this noise at low speed turns. Especially on higher lock.

 

I totally understand that, it's how to reduce it

 

change the type of fluid you are using possibly.

when I went from Redline (sucked imo) to the Motul, the engagement was smoother and the action was quiter... what you are looking for.

but all nismos make noise. if you have it on medium I think that is somewhere near an 80% lockup ratio. I have mine on the lowest, 60% or thereabouts.

the lower the lockup ratio, the less noise it will make as the allowable difference in speed between wheels is increased.

good luck, I hope the noise gets to an acceptable level for you.

summation:

1) try changing fluid to Motul
2) set lockup to the lowest setting
3) don't drive so slow

 

u can try motul fluid but all clutch style Lsds make noise. Especially the nismo. Do a search and u will see some suggestions.

 

Now that is useful

Thanks guys,
I'm using the oil which came with the diff, a friend of mine suggested to add GM LSD additive, what do u guys think?

 

Increase the sound level on your stereo... Just kidding!

I am sorry to say no matter what you do, you may never reduce the noise your differential makes to a level that is acceptable to you. For what it is worth, I have a Quaife automatic torque-biasing differential, which is silent at all speeds, seemless in transitions, and maintenance-free. And it is supplied with a life-time warranty from the manufacturer. You can't break it.

Good luck.

 

This is not correct. The only way to change the lockup ratio on the nismo LSD is to crack it open and re-arrange the clutch plates. From the factory the NISMO LSD is set for 100% lockup. The low-medium-max settings that you can change from the outside of the LSD only affects how quickly the LSD engages.

To the OP -- change fluid to Motul 90a. Lots of nismo lsd users have had good experiences with that. I have some on order so I can comment on it first hand in about a week

 

my bad, that is what I was talking about... the 'preload' setting.

 

It won't quiet down much or for long with a fluid change or even on the lowest setting. You just have to get used to it or replace it. It's doing what it's supposed to do.

 

The Motul 90PA does make a big difference...

 

I might be totally off on this but when I had my Mustang, anytime I changed the fluid in the differential, it was recommended to add a small bottle of friction modifier to keep the noise down. Not sure if this is compatible with any of the fluids we use or if this is already mixed in with Motul or redline etc.

 

[QUOTE=tranceformer95]I might be totally off on this but when I had my Mustang, anytime I changed the fluid in the differential, it was recommended to add a small bottle of friction modifier to keep the noise down. Not sure if this is compatible with any of the fluids we use or if this is already mixed in with Motul or redline etc.

I used GM's version of the same stuff once... helped a lot.

I've gotten so used to the sounds that I no longer bother trying to quiet it. I just changed the fluid and skipped the friction additive. It is hard to get used to at first though.