Is this an authentic jhm flywheel?

[Jigz13]

My b7 s4 is in the shop for some work. Was planning on installing a jhm lightweight flywheel clutch combo I bought off a fellow member. Shop called me Friday and won’t install the flywheel because it has 115 teeth and oem has 117 , they say it’s going to jam the starter. The shop says the clutch will work with my flywheel so it must be the right kit. So I guess my question is jhm have 2 less teeth? And if so has anybody have starter jam? What I bought looks like it’s differnt. Friction liner has been modified to fit.

https://i.imgur.com/jlUdHsX.jpg
https://i.imgur.com/kaeISKZ.jpg

Was told I was buying this but it looks different

https://jhmotorsports.com/jhm-lightw...-b6-b7-s4.html

Any info will be appreciated

Thanks

[dsgray16]

I see a JHM stamp.. I can’t tell you it’s real, but what I can tell you is that it’s HIGHLY unlikely that some parts manufacturer in China went out of their way to make knock-off JHM parts.. no offense to JHM.

[Jigz13]

I see a JHM stamp.. I can’t tell you it’s real, but what I can tell you is that it’s HIGHLY unlikely that some parts manufacturer in China went out of their way to make knock-off JHM parts.. no offense to JHM.

Sorry I should have mentioned it was bought used from another audizine member. Just trying to figure out what I bought as it looks different. The audizine member I bought it from modified the friction liner to fit. I was told that it had 7k on it but the clutch disk and liner were so worn I bought a new friction liner and disk from jhm. The disk they sent fit the clutch but the friction liner didn’t line up at all. Figured maybe someone might know by the pics what it was. My machnic said it did slide on the crank but was concerned of the 2 less teeth jamming the starter an the fact that the friction liner I bought direct from jhm wouldn’t fit I aborted the install. Any help tho is appreciated

[BCsniper]

I always thought their flywheels said 034Motorsport on them.....at least I'm pretty sure mine did but I put it in years ago so I can't remember exactly.

[Jigz13]

I want to make sure before I take action if I messed up and a b6 jhm lightweight doesn’t fit the b7 that’s fine my stupidity and I will resell it. But if it’s a cobbled up something else there really is nothing I can do about it other than open a claim which I really don’t want to do. It sucks, last big purchase I made from mr.wrong on here went smooth and everything was in amazing shape. This clutch and flywheel was advertised as 7k miles on it but was so worn I ended up buying a new disk (that fits) and liner (that doesn’t) from jhm so right now I’m into it for $1300 and I’m not installing the flywheel. I can only assume it’s not a correct flywheel as the liner was bought direct from jhm for the flywheel that was advertised but doesn’t fit what I have.

[jpmiceli]

It looks pretty sketchy to me.


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[tmorgan4]

I want to make sure before I take action if I messed up and a b6 jhm lightweight doesn’t fit the b7 that’s fine my stupidity and I will resell it. But if it’s a cobbled up something else there really is nothing I can do about it other than open a claim which I really don’t want to do. It sucks, last big purchase I made from mr.wrong on here went smooth and everything was in amazing shape. This clutch and flywheel was advertised as 7k miles on it but was so worn I ended up buying a new disk (that fits) and liner (that doesn’t) from jhm so right now I’m into it for $1300 and I’m not installing the flywheel. I can only assume it’s not a correct flywheel as the liner was bought direct from jhm for the flywheel that was advertised but doesn’t fit what I have.

It's great to see someone who takes the time to gather all the facts and figure out who is at fault before criticizing.

How long ago was the purchase? I was hoping to find an ad to see if any pictures were included with the listing.

[jpmiceli]

There is one in the classifieds now that looks different.


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[S4Bennett]

From my understanding, the flywheels have gone through several design revisions. I had an old VAST-JHM partnership LWFW when I bought it used in 2012. When I went to replace the liner in 2015, I found out the replacement liners only fit the latest revision. Submit an inquiry and the rep (usually Dru Yoder) will ask you for pics. They should be able to confirm authenticity and then give you guidance on your options.

In the end, I had to buy a whole new flywheel and returned the liner. As often as they do these design revisions without back compatibility, I’m tempted to go to another single mass, maybe lightened (don’t really care anymore) flywheel and clutch to skip the hassle of potentially having to buy a new $1400 flywheel every time.

[Jigz13]

It's great to see someone who takes the time to gather all the facts and figure out who is at fault before criticizing.

How long ago was the purchase? I was hoping to find an ad to see if any pictures were included with the listing.

It was a part out listed back in February. There were no pictures and the pictures on the first post are ones he sent me dm along with the link to the jhm lwf/clutch combo. I first got a little weary after the purchase because he deleted it from the part out while everything else was left and marked as sold. I contacted the seller on Friday and he informed me that the flywheel was purchased used on here a few years back and said he didn’t think the miles would be an issue as the clutch was purchased in July 17.

[Jigz13]

From my understanding, the flywheels have gone through several design revisions. I had an old VAST-JHM partnership LWFW when I bought it used in 2012. When I went to replace the liner in 2015, I found out the replacement liners only fit the latest revision. Submit an inquiry and the rep (usually Dru Yoder) will ask you for pics. They should be able to confirm authenticity and then give you guidance on your options.

In the end, I had to buy a whole new flywheel and returned the liner. As often as they do these design revisions without back compatibility, I’m tempted to go to another single mass, maybe lightened (don’t really care anymore) flywheel and clutch to skip the hassle of potentially having to buy a new $1400 flywheel every time.

I called jhm Friday but they didn’t confirm anything and sounded annoyed on the phone which is understandable as I didn’t buy it from them.

[VinnysS4]

I called jhm Friday but they didn’t confirm anything and sounded annoyed on the phone which is understandable as I didn’t buy it from them.

Jhm should be bending over backwards to help you out. It's not like it's a cheap product that was bought from them. For somebody buying it firsthand or second-hand, customer service should be at the upmost important when trying to replace a friction disc on a very expensive flywheel. however, I have ran into this issue with them before where they would not sell me the camshaft adjuster spring retainers. They're only solution for me was to spend $750 and buy the entire repair kit, which I did not need.
Wish you the best of luck. I really hope it's not a product they will not make a friction disk for any more simply because they've come up with a newer design

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[Jigz13]

After extensive searching and conversations with the person I bought it from I’m lead to believe it is a early design jhm flywheel. I guess the fiction liner was modified to fit as the new design has differnt mounting points. He has been pretty helpful trying to figure this out and because of this I’ve decided not to open a claim even tho I was mislead a bit (only 7k miles on it ) and would probably be ruled in my favour. Maybe I should have done a little more researching before the buy and he should have gave me the correct info on it. The clutch job is done now so I will probably just relist and take a loss. Thanks for all the reply’s.

https://i.imgur.com/UWn648l.jpg
https://i.imgur.com/lzjfjvS.jpg

[VinnysS4]

After extensive searching and conversations with the person I bought it from I’m lead to believe it is a early design jhm flywheel. I guess the fiction liner was modified to fit as the new design has differnt mounting points. He has been pretty helpful trying to figure this out and because of this I’ve decided not to open a claim even tho I was mislead a bit (only 7k miles on it ) and would probably be ruled in my favour. Maybe I should have done a little more researching before the buy and he should have gave me the correct info on it. The clutch job is done now so I will probably just relist and take a loss. Thanks for all the reply’s.

https://i.imgur.com/UWn648l.jpg
https://i.imgur.com/lzjfjvS.jpg

Damn that's shitty.... so you're telling me that if I install a jhm flywheel, and a couple summers later go to change the clutch and pressure plate liner (because I'm sold a flywheel that, at the time, was sold as having a replaceable friction liner so it would never need replacing again...just the liner) that I'm burnt? What kind of bull crap is that??

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[badger.]

Damn that's shitty.... so you're telling me that if I install a jhm flywheel, and a couple summers later go to change the clutch and pressure plate liner (because I'm sold a flywheel that, at the time, was sold as having a replaceable friction liner so it would never need replacing again...just the liner) that I'm burnt? What kind of bull crap is that??

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That's the conclusion I came to... pretty weak. That's like having to buy new calipers every time you need brake pads!

Straight from JHM product page (emphasis mine):
"The iron friction liner is replaceable, so, you will never have to buy a new flywheel again, you can just swap the liner if you ever replace your clutch."

[justinperkins]

"The iron friction liner is replaceable, so, you will never have to buy a new flywheel again, you can just swap the liner if you ever replace your clutch."

Are you sure they made that claim when they were making this early version of their flywheel?

At least they're offering you a credit towards flywheel purchase if you pursue that route. Seems like they're acknowledging the mistake with the early version and trying to make right as best they can.

[badger.]

Are you sure they made that claim when they were making this early version of their flywheel?

At least they're offering you a credit towards flywheel purchase if you pursue that route. Seems like they're acknowledging the mistake with the early version and trying to make right as best they can.

Well their initial offering post on this very forum from 2009 says so:
https://www.audizine.com/forum/showt...=1#post4183004

Direct Quote (again, emphasis mine):
"SPECS ON JHM LIGHTWEIGHT FLYHWEEL AND CLUTCH KITS

- FLYWHEEL - These JHM aluminum lightweight flywheels weigh less than 1/2 the weight of stock! 13lbs versus 26.5lbs for B7 S4 (B6 S4 weighs 26lbs). These are a direct replacement for 05.5 and up B7 S4s and an upgrade for 04-05 B6 S4s. The iron friction liner is replaceable, so, you will never have to buy a new flywheel again, you can just swap the liner if you ever replace your clutch. The crank position ring is welded to the ring gear while being retained and fastened with countersunk screws (not cheap pins prone to shearing like some other brands). For those concerned about the driveability and the infamous "chatter" of a lightweight flywheel that Audi enthusiasts have experienced with smaller 4 cylinder and 6 cylinder turbo engines here is the truth. With the B6/B7 S4s 4.2L V8s torquey nature the driveability is very close to stock and the noise is minimal when it is bogged under 1500 rpm. Some of JHMs customers have reported that they did not notice it at all. An added bonus to this upgrade for the B6 S4 owners is that with this flywheel you can now run a B7 RS4 pressure plate that is in our JHM clutch kit. The higher clamp load pressure plate is not compatible with the OEM B6 flywheel, so you must run a JHM lightweight flywheel or a B7 S4 OEM flywheel. "


Unless you got a pre-2009 version (which I don't think exists?) I think it applies...

[justinperkins]

Yup you're right

[Jake@JHM]

My b7 s4 is in the shop for some work. Was planning on installing a jhm lightweight flywheel clutch combo I bought off a fellow member. Shop called me Friday and won’t install the flywheel because it has 115 teeth and oem has 117 , they say it’s going to jam the starter. The shop says the clutch will work with my flywheel so it must be the right kit. So I guess my question is jhm have 2 less teeth? And if so has anybody have starter jam? What I bought looks like it’s differnt. Friction liner has been modified to fit.

https://i.imgur.com/jlUdHsX.jpg
https://i.imgur.com/kaeISKZ.jpg

Was told I was buying this but it looks different

https://jhmotorsports.com/jhm-lightw...-b6-b7-s4.html

Any info will be appreciated

Thanks

I've never seen that flywheel before. I will check and see if that was an early prototype.

I see a JHM stamp.. I can’t tell you it’s real, but what I can tell you is that it’s HIGHLY unlikely that some parts manufacturer in China went out of their way to make knock-off JHM parts.. no offense to JHM.

They did it to our V1 headers.

[Jake@JHM]

Damn that's shitty.... so you're telling me that if I install a jhm flywheel, and a couple summers later go to change the clutch and pressure plate liner (because I'm sold a flywheel that, at the time, was sold as having a replaceable friction liner so it would never need replacing again...just the liner) that I'm burnt? What kind of bull crap is that??

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I am confused on what you are getting at..

Why would you be burnt? You just buy our replacement liner as per our product page...

https://jhmotorsports.com/jhm-fricti...flywheels.html


You do NOT have to buy a new flywheel.

[VinnysS4]

I am confused on what you are getting at..

Why would you be burnt? You just buy our replacement liner as per our product page...

https://jhmotorsports.com/jhm-fricti...flywheels.html


You do NOT have to buy a new flywheel.

No confusion necessary. Please let me clear this up.

OP posted that he has a flywheel from JHM ( always possible that it is fake, but highly highly unlikely ) and he is unable to buy a new friction liner for it because the ones you sell don't fit it. They fit a "newer model" I'm pretty darn sure OP tried to do just that. "Contact jhm for a replacement liner" OP is burnt. Giving him a refund for an item that was not used, nor does it fit his JHM flywheel isn't giving him a credit twords another flywheel. It's simply givng him his money back for something he CAN'T use when your website clearly says "you'll never have to buy a new flywheel again". I myself almost bought this EXACT flywheel and would be Livid if I flushed that money down the drain for a piece of scrap metal with a JHM stamp on it.

Now that I've cleared that up: let's say I wasted my money on a new flywheel from JHM tomorrow. THEN you decide to change your design and phase out the one I bought, including all the friction liners that fit so your customers can be fed the line " buy a new flywheel" after just being promised "never have to buy another flywheel again just contact JHM for a replacement friction liner" I would be burnt, no? Just like OP.

Maybe he can make some sort of cool paperweight out of it?



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[BCsniper]

well the "revised" design has been around for several years now. hell mine is 3 years old or more. Jake can clarify, but I believe it's been unchanged for 8 years or so. so it's unlikely anybody is going to get suddenly "burnt" as you say.

it's a sucky situation, no doubt. however the part in question is probably 10 years old or so. being that it's no longer compatible isn't the most unreasonable thing in the world

[Jake@JHM]

No confusion necessary. Please let me clear this up.

OP posted that he has a flywheel from JHM ( always possible that it is fake, but highly highly unlikely ) and he is unable to buy a new friction liner for it because the ones you sell don't fit it. They fit a "newer model" I'm pretty darn sure OP tried to do just that. "Contact jhm for a replacement liner" OP is burnt. Giving him a refund for an item that was not used, nor does it fit his JHM flywheel isn't giving him a credit twords another flywheel. It's simply givng him his money back for something he CAN'T use when your website clearly says "you'll never have to buy a new flywheel again". I myself almost bought this EXACT flywheel and would be Livid if I flushed that money down the drain for a piece of scrap metal with a JHM stamp on it.

Now that I've cleared that up: let's say I wasted my money on a new flywheel from JHM tomorrow. THEN you decide to change your design and phase out the one I bought, including all the friction liners that fit so your customers can be fed the line " buy a new flywheel" after just being promised "never have to buy another flywheel again just contact JHM for a replacement friction liner" I would be burnt, no? Just like OP.

Maybe he can make some sort of cool paperweight out of it?



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I still do not know what that flywheel is (I've been at JHM since 2011). Like I said to the OP, I am looking to see if that was some sort of early prototype. People in the past have labeled brand X parts as JHM simply to be able to sell it (not saying that is what happened here).

As for returning the the friction liner that he couldn't use, he is more than welcome to if he did not modify it in any way. https://jhmotorsports.com/conditions

If the flywheel IS an early prototype from 10 or more years ago, we would be able to work with the customer to figure out a solution.

If we ever do change our flywheel in the future, we would absolutely continue selling this friction liner because we have thousands of flywheels out there.

[Jake@JHM]

My b7 s4 is in the shop for some work. Was planning on installing a jhm lightweight flywheel clutch combo I bought off a fellow member. Shop called me Friday and won’t install the flywheel because it has 115 teeth and oem has 117 , they say it’s going to jam the starter. The shop says the clutch will work with my flywheel so it must be the right kit. So I guess my question is jhm have 2 less teeth? And if so has anybody have starter jam? What I bought looks like it’s differnt. Friction liner has been modified to fit.

https://i.imgur.com/jlUdHsX.jpg
https://i.imgur.com/kaeISKZ.jpg

Was told I was buying this but it looks different

https://jhmotorsports.com/jhm-lightw...-b6-b7-s4.html

Any info will be appreciated

Thanks

Contact me when you can, I got some info for you.

[Jigz13]

Thanks to everyone trying to help me solve this. It has been confirmed as a jhm flywheel from 2008 prototype 1 of 5 made, this is why the friction liner mounting points are differnt. But it will work and is jhm.Again thanks

[65vetteC6]

No confusion necessary. Please let me clear this up.

OP posted that he has a flywheel from JHM ( always possible that it is fake, but highly highly unlikely ) and he is unable to buy a new friction liner for it because the ones you sell don't fit it. They fit a "newer model" I'm pretty darn sure OP tried to do just that. "Contact jhm for a replacement liner" OP is burnt. Giving him a refund for an item that was not used, nor does it fit his JHM flywheel isn't giving him a credit twords another flywheel. It's simply givng him his money back for something he CAN'T use when your website clearly says "you'll never have to buy a new flywheel again". I myself almost bought this EXACT flywheel and would be Livid if I flushed that money down the drain for a piece of scrap metal with a JHM stamp on it.

Now that I've cleared that up: let's say I wasted my money on a new flywheel from JHM tomorrow. THEN you decide to change your design and phase out the one I bought, including all the friction liners that fit so your customers can be fed the line " buy a new flywheel" after just being promised "never have to buy another flywheel again just contact JHM for a replacement friction liner" I would be burnt, no? Just like OP.

Maybe he can make some sort of cool paperweight out of it?



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While I agree with you on some points, this guy bought a 2nd or 3rd hand flywheel. Most companies do not extend support to 2nd/3rd hand customers on items that have changed hands multiple times. That said I get your point on needing to support an old product but it sounds as if this wasn't even a "product" and I wouldn't be surprised if the guy selling it new it wasn't a current model.

[VinnysS4]

While I agree with you on some points, this guy bought a 2nd or 3rd hand flywheel. Most companies do not extend support to 2nd/3rd hand customers on items that have changed hands multiple times. That said I get your point on needing to support an old product but it sounds as if this wasn't even a "product" and I wouldn't be surprised if the guy selling it new it wasn't a current model.

Yeah , I did not mean to come across as a total dick. If it's a prototype, I get it. I wouldn't expect a company to stock replacement liners on that. If the flywheel was not a prototype, I stand by every single statement I made.
I'm very glad I did not end up buying this.
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[Jigz13]

While I agree with you on some points, this guy bought a 2nd or 3rd hand flywheel. Most companies do not extend support to 2nd/3rd hand customers on items that have changed hands multiple times. That said I get your point on needing to support an old product but it sounds as if this wasn't even a "product" and I wouldn't be surprised if the guy selling it new it wasn't a current model.

I can’t say anything bad about jhm. They offered me a way to make it right but I declined as I feel they shouldn’t have as it was a used part not bought thru them. I agree With you 100% with every statement you made.

[badger.]

While I agree with you on some points, this guy bought a 2nd or 3rd hand flywheel. Most companies do not extend support to 2nd/3rd hand customers on items that have changed hands multiple times. That said I get your point on needing to support an old product but it sounds as if this wasn't even a "product" and I wouldn't be surprised if the guy selling it new it wasn't a current model.

Yeah , I did not mean to come across as a total dick. If it's a prototype, I get it. I wouldn't expect a company to stock replacement liners on that. If the flywheel was not a prototype, I stand by every single statement I made.
I'm very glad I did not end up buying this.
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Agreed with both of you. I would say being a 1 of 5 early prototype changes things for sure, yes.

Thanks to everyone trying to help me solve this. It has been confirmed as a jhm flywheel from 2008 prototype 1 of 5 made, this is why the friction liner mounting points are differnt. But it will work and is jhm.Again thanks

Good to hear it was resolved without turning into a seller-bashing hate-fest based on assumptions and poor communication like so many threads on here... A little patience goes a long way in sorting things out.