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If you now order part number 000 043 305 73, you will now get a tube of Castrol Tribol GR400-3 PD.
Here's a link to that product: (Note that it is "Olista Longtime", renamed.) https://euro-industry.com/main.php?i...211728&lang=en
Also note the intended applications:
It's no accident that Porsche uses this grease on clutch splines...the "advantages" reads like a perfect/textbook example of what lubricant to use for clutch splines.
Once again, Porsche appears to know more than rookie 928 mechanics.
Amazing!
Three points:
1. I'm about as far away from being a Porsche "Workshop Manual" 928 mechanic as you will ever find. I rarely even open the Workshop Manual, except for a "torque refresher" on something I haven't done in awhile or for a wiring diagram. I do (and build unique pieces) what work, for me and other people's 928's.
2. Unlike you, I never called said anything about you, personally. Just said that the problem with your lubricant issue was you. Completely accurate and truthful!
3. There's at least 10 separate posts, besides mine, which tell you exactly what you did wrong.
You might want to actually stop and try listening to others....especially to the people (like Mr. Merlin) who are experts in this particular field.
While I'm not sure what your goal is, on this Forum, but you generally make a complete fool out of yourself, trying to play "expert", in a field that you clearly are not.
Read and learn, from your mistakes.
I did nothing wrong except follow the herd and use an inferior product not right for my application. You are not being accurate or truthful. If you were then you would address the fact that the moly based paste is a viable option. The OOL EP3 and it's TRIBOL sucessoror is bearing grease, and a product that melts and flow at a relatively low temp that may not be correct for high performance applications. I can repeat it but I cant understand that for you. I dont want grease anywhere near a clutch. You staked you ground and expressed your rigidity. You can argue that 284F is fine for many applications, I dont believe it is for mine. You position is one solution and one solution only? Is that correct?
I dont like the product. So what? The Tribol GR400 has the same problem, upper limit of 284F and will start to flow soon after maybe even at a lower temp if subjected to centrifugal forces. I can read a tech sheet, consider what happened on the ground and and draw my own conclusions. I dont want to use it. You can and should use what ever you like. Nutella for all I care. Why is that a bone of contention for you?
You've probably not understanding what you're looking at in the first Pict. Have you ever seen a pattern like that before? If so where? If you did understand you'd know what that strake line pattern indicated. Those perfect symmetrical lines lines indicate the grease flowed, liquefied, migrated and became thin. That's not a characteristic I want for a clutch where contamination is to be avoided I want a product that stays in place like moly paste which is EXACTLY why Porsche specified it originally. Why is that controversial and difficult for you to comprehend.
The amount I used was not inappropriate for a clutch job, the product failed to meet my expectations in my particular high torque application. You characterization that I applied it with a caulk gun is very imaginative and also delusional. I know you'd like be believe that to be the case but it's just not.
It's fairly well established you have no regard for anyone other that yourself or those that agree with you. And you have particularly animus toward me becasue I've already solved multiple 928 specific problems that you admittedly failed and gave up on and then try'ed to suggest they could not be done. They were done successfully. Can you only elevate your self by pushing down others? Your issue with me lies in your own inadequacies and not my willingness to use molly paste. Didn't you already agree to not comment on my posts? Haven't we been through this before? It's getting old.
Like I said... I get it you love the grease, I don't. Just accept that for what it is. You've **** posted over another one of my threads. Good job, you've done it again. You've made your case, You've had you say. Let it go.
Last edited by icsamerica; 01-21-2023 at 10:37 AM.
I’ve done lots of 928 clutches; no doubt less than 1/10th of the number Greg’s done.
I’ve always used the Porsche grease. I’m on my 4th tube in 25-ish years. (Greg can probably tell me how many clutches that’ll do.)
I don’t use a toothbrush. I’m not particularly overly-fastidious. But I don’t find globs of it in strange places. I just applied it where the WSM indicated to apply it.
I’ve never had an issue with the grease getting on the friction surface. Not once.
Dave if you dont use a toothbrush your missing out.
NOTE 87% of clutch installers recommend doctor approved,
patient tested toothbrushes,
for installing the sticky grease into the splines and hubs of the clutch.
NOTE in this case the bigger the glob the better job does not apply.
Dave if you dont use a toothbrush your missing out.
NOTE 87% of clutch installers recommend doctor approved,
patient tested toothbrushes,
for installing the sticky grease into the splines and hubs of the clutch.
NOTE in this case the bigger the glob the better job does not apply.
This entire thread is a waste of time.
Millions of cars assembled by factories using this grease.
Sachs has sent this grease with millions of replacement clutches.
What, two dozen Rennlisters saying they have had no issues, installing hundreds of 928 clutches.
One, really stubborn rookie mechanic, has an issue (on two cars) because he used way, way too much grease and suddenly the grease is incorrect for the application?
That's absurd, of course!
There's a point where stubbornness turns to foolishness....this OP has passed that point, by keeping insisting the grease is the problem, not him.
Just forget this guy and move on.
Spend your time trying to help 928 owners who can apply facts and logic to their specific problem.
Dave if you dont use a toothbrush your missing out.
NOTE 87% of clutch installers recommend doctor approved,
patient tested toothbrushes,
for installing the sticky grease into the splines and hubs of the clutch.
I’ll look to see if Stahlwille, Hazet, or Gedore make a brush for clutch grease application
The toothbrush idea might be the very best part of this entire thread.
I, also, have never done this.
Before I assemble the clutch pack, I put a liberal amount of the Porsche grease onto the short shaft. I then pass this through the clutch disc/discs until every bit of every spline is lubricated. I then wipe off the excess that has "piled" up on each side of the disc and repeat the process a couple of times. This gives me a super thin layer, with every bit of every spline lubricated.
I will definitely try the toothbrush idea and see if that works better/is faster.
......I'm just not sure how Mary is going to react to me using her toothbrush...
The toothbrush idea might be the very best part of this entire thread.
I, also, have never done this.
Before I assemble the clutch pack, I put a liberal amount of the Porsche grease onto the short shaft. I then pass this through the clutch disc/discs until every bit of every spline is lubricated. I then wipe off the excess that has "piled" up on each side of the disc and repeat the process a couple of times. This gives me a super thin layer, with every bit of every spline lubricated.
I will definitely try the toothbrush idea and see if that works better/is faster.
......I'm just not sure how Mary is going to react to me using her toothbrush...
Holy crap, the engine and transmission God likes one of my process improvements
..........This entire thread is a waste of time.
..........Spend your time trying to help 928 owners who can apply facts and logic to their specific problem.
I disagree Greg, it was not a waste of time (entirely).
A discussion like this that brings out all the negatives and positives ...... is great for a novice/learner like me.
So now I know that the grease works, how to apply it CORRECTLY and what happens when you don't. So thanks to all who contributed.
We used Krytox on CV joints and tripods when I did Indycars. Excellent "high-surface-tension" grease.
Caution:
- use gloves when applying, it is toxic.
- no "normal" solvent will touch it, not brakeclean, not acetone,
Krytox GPL-217 (moly based) is Interesting stuff. Especially since it says toxic right in the name. Might be overkill for what I'm doing but sometimes extremes can help illustrate finer points.
And that's why I'm using a moly paste, or what Porsche originally specified. It's a paste that stays in place. I've done some lab style bench testing with a spare input shaft using the OOL EL3 bearing grease. When heated it thins considerable and flows out with capillary like action. I'm going to make a YT tech video to demo this effect. It will shed some light on the subject while comparing anti-seize to the OOL EP3 bearing grease. Spoiler alert. OOL EP3 is ok even fine for a driver's car, but in a high performance situation where the clutch can heat up for a variety of reasons, a paste is a better way to avoid contamination, that's my position. Specific people may not like that position but that's there problem.
Here's my question?
If you've got a high dollar clutch why risk any contamination with a low temp grease when there is an alternative product that is just as effective but has a far lower chance at contamination.?
Last edited by icsamerica; 01-26-2023 at 12:00 PM.
01-20-2023, 05:30 PM
