Originally Posted by clubairth1

With the information we now have just forget ALL the aftermarket couplers and get the proper Eaton made one.
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Originally Posted by GaiaXF-V8S

I just posted this over on the F-Type forum, hopefully it will help here.

I replaced mine on my old XF with updated Eaton part after reading the trouble that the GM LSA guys were having with ZZP and other aftermarket isolator makers. Using the official Eaton part, mine was quiet after replacement and I didn't hear a peep out of it after putting 60K miles on it. Tons of reports online of people replacing their isolators and then having noise develop. Some report noise right away after repair others report the noise developed over time.

Here is the forum where they talk about using aftermarket couplers and the sound going away after moving to the official Eaton part. 4th post down the page.
https://www.g8board.com/threads/lsa-...etness.280901/

I also found this video while getting the direct link to their part. Eaton has a good video showing counterfeit versions of their product floating around, but more importantly they show how solid of a joint their updated coupler makes.
https://www.youtube.com/watch?v=24s0LwxSGKY

Eaton Supercharger Isolator:
https://superchargersonline.com/prod...-engine-09-14/
They use the exact same Eaton TVS1900 supercharger so don't be alarmed that this is for GM cars.

Hope this helps!

Originally Posted by dennis black

The solid one I purchased fits snug and tight, I have 2000 miles on it and silent as a lamb
https://youtu.be/7sm3trlw-qI?si=-V9TwPJDt_FVxzlX

Originally Posted by clubairth1

I want to thank GaiaXF-V8S again for his great and in-depth thread on the proper Eaton solid coupler. I learned so much from his one thread!
I have the Eaton solid coupler and will install it when I have things apart.

That Eaton video just goes straight to the heart of this problem and totally explains the issues and the solution.
Well done!
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Originally Posted by clubairth1

Interesting?
I have never seen an after market snout? Only JLR ones?
Do you have a link? Those might be a good bit cheaper than the official ones? But if they are not exactly the same as the stock Jaguar ones that would be a BIG problem?
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Originally Posted by GaiaXF-V8S

@clubairth1 Yes the LSA coupler offered by Eaton is sold by Supercharges Online. It will fit any TVS1900 in the V8s. The V6 aftermarket solid coupler for the V6 supercharger can be found here https://www.ebay.com/itm/12537909232...Bk9SR-jI9af_Yw

The issue is not just with the original non solid spring style coupler. The spring is made of a harder metal than the input shaft. The spring wears deep grooves into the input shaft changing the torsional vibration thus causing unpleasant noise. Eventually all TVS1900 owners WILL develop noise that sounds like marbles rolling around or a can of rocks sound at idle that goes away with engine RPM and a noticeable clunk on engine shutdown. This has been discussed all over forums anywhere the TVS1900 is used. ZZP, LPE and a few other aftermarket solutions have hit the market with mixed results. The Eaton solid solved the issue on mine with no noise even after 60K miles as well as many other TVS1900 owners. It has been a while, but last I checked, I could not find anyone who replaced their noisy coupler with an Eaton solid and have had any further issues. Brian at Superchargers Online, if he is still with them, can answer more technical questions. There is talk of bearing wear if it is ignored for too long due to increased torsional vibration. If you don't have the noise yet you are more than likely safe from more serious issues. On my '13 I will probably have my supercharger ported as well as a new input shaft and solid coupler put on as well as a litany of other upgrades including FI Interchillers Interchiller solution for combating heat soak beyond what an intercooler can do. If you haven't seen Gasman2 post on the F-Type forum about this mod I highly recommend looking into it. Anyways, in my opinion its the best way to ensure the supercharger never has a problem again due to the original issue.

Sorry for the length, hope this helps!

Originally Posted by lotusespritse

I used the highly touted ZZ Performance coupler. It seemed just fine in terms of fit and quality, but I had problems. I guess the snout could have coincidentally been on its way out, or the ZZP coupler stressed the coupler. I don't know. But no more noises from the supercharger while running after putting on a new OEM replacement, so at least the supercharger itself wasn't damaged. That would have been a $3-4K DIY fix.

Originally Posted by Haalex

What OEM reference did you use?
My coupler has a couple of mm of play and makes a buzzing sound most of the time. Looking to replace it for something reliable. I might make a thread about it once the diagnosis is confirmed (i.e. after I've ran the engine without the SC belt).