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Michael Boone
Joined: 31 Jan 2007
Posts: 1184
Location: France, Not USA state, Nantes
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 Posted: Fri Nov 14, 2008 1:17 pm Post subject: New Rotax Clutch!!!Photo |
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Hello All !
Here's a look at the new Rotax clutch. Sorry about the photo but it was in one of my kart mags and it started out about 1x2 inch when I scanned it.
It comes in a kit with the clutch and new balance gears.
My motors in to the shop at Sodi getting rebuilt and is getting the new clutch too. How much?? not sure yet didn't have the price handy   this may hurt!! 
Salut MB
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Ray Chiappe
Joined: 12 Apr 2003
Posts: 802
Location: United States, Nevada, Henderson
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| Posted: Fri Nov 14, 2008 1:42 pm Post subject: |
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| How does that thing work?? |
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Jason Fisher
Joined: 04 Jul 2006
Posts: 634
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| Posted: Fri Nov 14, 2008 1:44 pm Post subject: |
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| I appears to work like the Leopard / PRD style clutch. Hopefully it will be better than the old Rotax junk. Anyone know if it is going to be R-Max legal? |
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Carlos Calderon
Joined: 16 May 2006
Posts: 890
Location: United States, California, San Jose
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| Posted: Fri Nov 14, 2008 2:04 pm Post subject: |
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Excellent Michael, thanks!
| Ray Chiappe wrote: | | How does that thing work?? |
Ditto. I don't see any friction material. I assume the black piece at the bottom left an integrated clutch drum and drive gear?
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Rob Schlorer
Joined: 03 Oct 2005
Posts: 72
Location: United States, Washington, federal way
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| Posted: Fri Nov 14, 2008 5:04 pm Post subject: clutch |
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can you get some photos of the assembly when Sodi does the work??
also see if it can be adapted to a belt driver(from Hegar mfg.) |
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Andy Seesemann
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Joined: 16 Jul 2001
Posts: 3288
Location: United States, California, Fullerton
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| Posted: Fri Nov 14, 2008 5:31 pm Post subject: |
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The middle item on the left is the friction hub.
It is of similar design to the Leopard, you just can't tell due to the photo's graininess.
It is 100% Rotax legal as it is a Rotax product.
Due to the different dimensions, the balance gears have to be changed as well. That is why they are part of the package.
I have no hard pricing information, yet.
A
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Andy Seesemann
FULL THROTTLE KARTING
Orange County, CA.
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Rotax Challenge of the Americas
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www.worldkarting.com
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Lewis Cronis
Joined: 28 Jul 2005
Posts: 1738
Location: United States, Massachusetts,
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| Posted: Fri Nov 14, 2008 7:26 pm Post subject: |
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| Andy Seesemann wrote: |
Due to the different dimensions, the balance gears have to be changed as well. That is why they are part of the package.
A |
Andy,
Are you saying that once the balance gears are changed over (to accomodate the new clutch), you can NOT run the old (existing) clutch? |
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Ray Chiappe
Joined: 12 Apr 2003
Posts: 802
Location: United States, Nevada, Henderson
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| Posted: Fri Nov 14, 2008 7:55 pm Post subject: |
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| Andy, Does the drum accept the old driver sprockets?? Also does the drum have groves to take those gear things?? Just trying to grasp! |
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Andy Seesemann
Expert
Joined: 16 Jul 2001
Posts: 3288
Location: United States, California, Fullerton
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| Posted: Sat Nov 15, 2008 9:58 am Post subject: |
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Wow, that didn't take long.
I'll do the best that I can. I saw a prototype in May when I was at the Rotax factory, but I only caught a quick glimpse of it.
Where did I say that, Lewis? All I know is that they come with the new introductory kit.
Ray, after looking at the picture that I have, the drum has the same locking pin hole that the current drum has. So, I am fairly certain that it takes the current gears.
Thats about all that I know. I will probably see them at the Worlds in 10 days and then they will be in the US sometime early next year. Right after the Worlds, Rotax goes on their Winter Holiday. Rarely do orders get processed before the first of the year. I wouldn't hold my breath about these for a couple of months from now.
A
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Andy Seesemann
FULL THROTTLE KARTING
Orange County, CA.
www.fullthrottlekarting.com
Rotax Challenge of the Americas
www.rotaxchallenge.com
WKA District 10 Trustee
www.worldkarting.com
Really Good Guy. |
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Mark Owen
Joined: 01 Oct 2004
Posts: 29
Location: United States, Texas, Abilene
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| Posted: Sat Nov 15, 2008 10:12 am Post subject: |
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| Does this clutch have an advantage over the current clutch? |
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Andy Seesemann
Expert
Joined: 16 Jul 2001
Posts: 3288
Location: United States, California, Fullerton
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| Posted: Sat Nov 15, 2008 10:43 am Post subject: |
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Yes.
No posts to break off the backing gear.
If you look closely, the friction hub gets bolted to the starter gear.
Off to register my 7 year old for Little League now.
A
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Andy Seesemann
FULL THROTTLE KARTING
Orange County, CA.
www.fullthrottlekarting.com
Rotax Challenge of the Americas
www.rotaxchallenge.com
WKA District 10 Trustee
www.worldkarting.com
Really Good Guy. |
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Keith Buffo
Joined: 30 Nov 2007
Posts: 306
Location: United States, Massachusetts, Stoneham
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| Posted: Sat Nov 15, 2008 11:23 am Post subject: |
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| Jason Fisher wrote: | | I appears to work like the Leopard / PRD style clutch. |
How are those to work with... reliable? Maintenance?
Still not quite getting how it works... how does it engage and disengage from the drum?
So bolts instead of pins. Based on experiences with similar clutch designs, would it be reasonable to assume that the bolts are the weak spot, but replaceable? |
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Lewis Cronis
Joined: 28 Jul 2005
Posts: 1738
Location: United States, Massachusetts,
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| Posted: Sat Nov 15, 2008 1:13 pm Post subject: |
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| Andy Seesemann wrote: | Wow, that didn't take long.
Where did I say that, Lewis? All I know is that they come with the new introductory kit.
A |
I simply asked since your statement:
Due to the different dimensions, the balance gears have to be changed as well. That is why they are part of the package.
wasn't clear and it seemed to imply that the new gears were included with the clutch (upgrade) kit due to compatibility reasons (inertia, damping, resonances, etc), so I simply asked the question for the sake of clarification. |
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Freddie Fawcett
Joined: 28 Feb 2007
Posts: 148
Location: United States, Massachusetts, Cohasset
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| Posted: Sat Nov 15, 2008 2:30 pm Post subject: |
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Where is the next weak point going to be? Will it still be within the clutch?
With the old design, if the axle was shocked while the clutch was engaged the pins would sheer and you were rewarded with a $400 paper weight.
With the new design, if the clutch is no longer the weak point in the system something else will have to give if/when the axle takes a shock.
If internal engine parts end up taking a beating could it be cheaper to run the old style?
Can someone inform us how the Leopard/PRD clutch works? |
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Dale Seeley
Joined: 11 Nov 2005
Posts: 524
Location: United States, Georgia, Marietta
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| Posted: Sat Nov 15, 2008 2:35 pm Post subject: |
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The Rotax forum probably isn't the best place to get Leopard info....  |
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