Restoration-Mini

Technical Forums => Maintenance and Modifications => Topic started by: tmsmini on October 17, 2016, 08:28:53 PM

Title: CV Joint Grease
Post by: tmsmini on October 17, 2016, 08:28:53 PM
I have never trusted the packets that come with the replacement boots. Sometime it is already separating in the packet.

What are people using that is reasonable?
Title: Re: CV Joint Grease
Post by: MiniDave on October 17, 2016, 08:33:42 PM
You mean the oil has leached out? That's not uncommon if it has sat for a while, all I do is knead the grease in the package before I use it, never had any problems that way.
Title: Re: CV Joint Grease
Post by: tmsmini on October 18, 2016, 08:06:20 AM
So you use the non-branded stuff that come with the replacement boots? It just seems inconsistent from packet to packet, different packaging etc.

There seems to be some discussion on other forums about whether the same grease is suitable for both wheel bearings and CVs.
This one says it is:
http://www.valvoline.com/our-products/grease-gear-oil/synthetic-blend-grease (http://www.valvoline.com/our-products/grease-gear-oil/synthetic-blend-grease)
Mobil says their Mobil One synthetic is not for CVs

Redline has CV-2:
https://www.redlineoil.com/product.aspx?pid=82 (https://www.redlineoil.com/product.aspx?pid=82)
Title: Re: CV Joint Grease
Post by: MiniDave on October 18, 2016, 08:16:34 AM
Use whatever you feel is appropriate, but there are two different types that come with the kits, one with moly (the black stuff) for the outer CV's and a different, lighter grease for the pot joints.

I've not had any trouble using either in the appropriate joint.
Title: Re: CV Joint Grease
Post by: 94touring on October 18, 2016, 08:46:34 AM
I've never had any issues with the grease either, other than I tend to use a little more than supplied.
Title: Re: CV Joint Grease
Post by: tmsmini on October 18, 2016, 10:10:41 AM
Maybe I was comparing the two different types. I did not realize the POTs used something different from the outers.
Title: Re: CV Joint Grease
Post by: MiniDave on October 18, 2016, 10:43:19 AM
Yes the pot joint grease is thinner, and doesn't have molybdenum (the stuff that makes it black)
Title: Re: CV Joint Grease
Post by: John Gervais on October 18, 2016, 02:21:03 PM
Oh, I also didn't know that the inner joints use a lighter grease either.  Wish you'd mentioned this earlier... 

I guess then that the pot joints should have high-temp wheel bearing grease (for example, (Link) Castrol LMX (http://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/B215DF5968A78AE680257796002FEFA4/$File/LMX%20GREASE.pdf))?

So, outer joints get the molybdenum grease - what's the harm (or danger) in using it in the inner pot joints as well?  My pot joints currently have (Link) Castrol MS3 (http://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/6F4B1B9EEF4DA605802577960030071C/$File/MS3%20Grease.pdf) moly grease.

I can use the same moly-grease in my ball joints, is this correct?

Title: Re: CV Joint Grease
Post by: MiniDave on October 18, 2016, 02:43:42 PM
Grease is the word.......

You don't need the high temp grease in the pot joints, they don't run at the hard angles the outer joints do, but it will work just fine. You can use the same stuff in your ball joints, upper control arms, and rear control arms....however the high temp stuff is stiffer and doesn't flow as well.

You really only need two types of grease, chassis grease for everything else, and the moly stuff for the outer CV's......chassis grease works fine for wheel bearings too unless you're going to do track days or endless hours on the motorway on 100* days with the car fully laden going down mountain roads. IOW, it's fine for everything but racing and running in the desert....

Remember these cars are lightly used and lightly loaded.
Title: Re: CV Joint Grease
Post by: John Gervais on October 18, 2016, 03:16:35 PM
Ok, this is really good to know, though I wonder if I shouldn't change my wheel bearing grease to something 'lighter' (Castrol LM (http://msdspds.castrol.com/bpglis/fusionpds.nsf/files/c0d701ced8c690b480257796002fef7b/$file/lm.pdf)) next time I service them.

Learning something every day...
Title: Re: CV Joint Grease
Post by: MiniDave on October 18, 2016, 04:00:53 PM
Nah, just leave them alone till the next time they're due for a repack, in about 100K miles!  ;D