S2000 Under The Hood S2000 Technical and Mechanical discussions.

CV joint failure, why exactly?

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Old May 17, 2022 | 11:49 AM
  #91  
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Originally Posted by Mr.Matchbox
Have you actually read the content of this thread before posting?
Yes, I have.
The post mentions cv joint (RZEPPA) failure but refers to the pitting in the tripod joint cups. That's not the same don't you think?


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Old May 17, 2022 | 11:56 AM
  #92  
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Tripod joint is a type of CV joint. There are like 5-6 styles of CV joints and the two mentioned are just two of them. Yes, they operate different and possibly have different recommended grease types, but it sounds like we are comparing a CV joint to a tripod joint which is not making sense. Maybe I am missing what the question is here? lol
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Old May 17, 2022 | 12:05 PM
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@ Jarvis: The topic of this thread here is clearly the failure of the inner (Differential side) tripod joints. Thats what alle the discussion is about. Nothing else. Some members here call them CV joints, some call them Tripods. If this is wrong or rigth.... i dont care.
However, if you really read all the valuable information here, you should understand it. And then there are pictures, too....



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Old May 17, 2022 | 12:08 PM
  #94  
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The potential issue with using redline cv is the needle bearings. Apparently redline has assured that their nlg2 cv grease is suitable for needle bearings, even though that application calls for an nlg1 lubricant.

Even if one is skeptical of redline statement, the needle bearings haven't shown to be the weak point. So if redline helps with the issue we do have, while compromising something we don't, perhaps that is a decent tradeoff. Prolong cup life, while compromising bearing life. If that compromised bearing life still lasts as long as the now longer cup lifespan, its a win.

All that said, personally I used an Amsoil nlg1, that is said to provide good cling and good impact protection. Meant for high load truck applications, but specs seem to align well with our needs here.

Time will tell. My original cups lasted 140k+ miles before noticing any vibes. It'll be some time before any useable feedback on the amsoil stuff. Plus its just a sample of one.
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Old May 17, 2022 | 12:18 PM
  #95  
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Originally Posted by Car Analogy
The potential issue with using redline cv is the needle bearings. Apparently redline has assured that their nlg2 cv grease is suitable for needle bearings, even though that application calls for an nlg1 lubricant.

Even if one is skeptical of redline statement, the needle bearings haven't shown to be the weak point. So if redline helps with the issue we do have, while compromising something we don't, perhaps that is a decent tradeoff. Prolong cup life, while compromising bearing life. If that compromised bearing life still lasts as long as the now longer cup lifespan, its a win.

All that said, personally I used an Amsoil nlg1, that is said to provide good cling and good impact protection. Meant for high load truck applications, but specs seem to align well with our needs here.

Time will tell. My original cups lasted 140k+ miles before noticing any vibes. It'll be some time before any useable feedback on the amsoil stuff. Plus its just a sample of one.

According to GKN, the needle bearings can clog with an NLGI 2 grease. I doesn't have to depending on the application, working temps etc. but it can...

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Old May 17, 2022 | 12:20 PM
  #96  
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Originally Posted by Mr.Matchbox
@ Jarvis: The topic of this thread here is clearly the failure of the inner (Differential side) tripod joints. Thats what alle the discussion is about. Nothing else. Some members here call them CV joints, some call them Tripods. If this is wrong or rigth.... i dont care.
However, if you really read all the valuable information here, you should understand it. And then there are pictures, too....
I just wanted to clarify the terminology. Because different greases are recommended and used for both joint applications.
Therefore, one grease for both isn't always the solution.
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Old May 17, 2022 | 12:22 PM
  #97  
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Short and simple, with some sarcasm:

On this side ot the atlantic ocean members of a certain Internet community simply "dont get it" and think that Redline CV2 grease is "Rubbish - garbage" and you should only use NLGI 1 (THIN) grease on the Tripod Joints, because "The manufacturer says so..." They ignore or dont understand this thread and the information here. For whatever reason... Jarvis is also a Member of this certain Community.

As i statet, that was written with some sarcasm.
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Old May 17, 2022 | 12:23 PM
  #98  
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Originally Posted by engifineer
Tripod joint is a type of CV joint. There are like 5-6 styles of CV joints and the two mentioned are just two of them. Yes, they operate different and possibly have different recommended grease types, but it sounds like we are comparing a CV joint to a tripod joint which is not making sense. Maybe I am missing what the question is here? lol
Yes, that's why I pointed out that you have to distinguish between the two when choosing the right grease. Otherwise it's easy to mix things up.
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Old May 17, 2022 | 12:27 PM
  #99  
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Originally Posted by Mr.Matchbox
Short and simple, with some sarcasm:

On this side ot the atlantic ocean members of a certain Internet community simply "dont get it" and think that Redline CV2 grease is "Rubbish - garbage" and you should only use NLGI 1 (THIN) grease on the Tripod Joints, because "The manufacturer says so..." They ignore or dont understand this thread and the information here. For whatever reason... Jarvis is also a Member of this certain Community.

As i statet, that was written with some sarcasm.
Oh well, here is a little sarcasm for you too - go read a thesis about cv joint grease

Btw...I never said Redline CV2 is rubbish.
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Old May 18, 2022 | 12:40 AM
  #100  
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Originally Posted by Mr.Matchbox
Short and simple, with some sarcasm:

On this side ot the atlantic ocean members of a certain Internet community simply "dont get it" and think that Redline CV2 grease is "Rubbish - garbage" and you should only use NLGI 1 (THIN) grease on the Tripod Joints, because "The manufacturer says so..." They ignore or dont understand this thread and the information here. For whatever reason... Jarvis is also a Member of this certain Community.

As i statet, that was written with some sarcasm.
Just wondering about this kind of discussion. Sarcasm never works in online forums, it’s no surprise, just avoid it. And unspecific complaints about forums anywhere over in Europe don’t add value to this thread and nobody here could care less about it. It seems to be more of a personal issue you have ?!

It would be great to understand the rationale why you have more confidence in email responses of a random redline tech support guys, than in certified & concept proven manufacturer specifications.
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