S2R 800 clutch damage

[stopintime]

okay so...
what this is all basically boiling down to... is that the S2R APTC unit is a piece of garbage in general. Got it.

Ducati engineers told the manufacturing department to make this engineering miracle - a soft lever, slipper action and cush springs protected clutch. Then they went to lunch and never looked back, later washing their hands when confronted with their failure.

When it works, it works well. When it explodes....  Garbage? Not until it stops performing

[Dave328]

Ducati engineers told the manufacturing department to make this engineering miracle - a soft lever, slipper action and cush springs protected clutch. Then they went to lunch and never looked back, later washing their hands when confronted with their failure.When it works, it works well. When it explodes....  Garbage? Not until it stops performing

BINGO!! 

[brad black]

man you guys are a bunch of melodramatic nannas.  thank god you don't have 4v with flaking rockers.

the aptc clutch is not a ducati thing, it's made by adige amongst lots of other stuff - http://www.adige.eu/public/ENG/products/products.asp

the issue, that seems to occur to a small number of bikes (i've seen only one, which did it twice) is with the spring type cush drive equipped primary drive gear.  you could get a non sprung hub and rivet it on or get a non sprung aptc hub and fit it.

[Ddan]

 

[ducatiz]

lol

[BK_856er]

Stole this pic of a non-sprung APTC clutch basket/gear from one of Dirt Monster's nice M695 posts.  Gives a good view of things for comparison.  No springs to grenade.  Nice and light.

BK

[stopintime]

Does that have rubber cush/dampers? 

[BK_856er]

Does that have rubber cush/dampers? 

It's all metal.  No cush/dampers.

BK

[Alcapone]

Can it be fitted to a S2R?



Ive got the same problem... Also, what are those little springs in the primarygear? I didnt see those on your bikes.

[stopintime]

That is a dual mass primary drive gear, also 'known' to explode or something like that.

I changed mine for an old style one-piece gear, but it wasn't a pair with the large driven gear and made a terrible high pitch noise.

My second sprung gear/basket was also toast after a short while. (probably/maybe related to my tuned engine)

This year I have run a basic 750 clutch and it has performed well (survived at least)

[jerryz]

What on earth could cause this?
Wet clutch bike with 3400 miles... nothing in that area has probably ever been touched since that bike left the factory.
I call manufacturer defect/quality control issue on this one.

Main clutch centre Nut not torqued up to correct specification of 137ft lbs would cause the problem its not uncommon  but this is the worse damage i have ever seen

[Alcapone]

Hi!

I just wanted to say thank you, for this topic.

Today my s2r came back from the workshop with new parts installed from a 796 hypermotard. Without the information here provided my bike would propably still be broken.

Thank you

[stopintime]

 

[jerryz]

I have seen loose clutch  nuts on many ducatis , 916, S4,750ss ,M900,ST3,s2r atc its not uncommon  , but many dealers do not stock locking tabs for different clutch hub designs , and the older  types cant be sourced even from Ducati so I always use some loctite and a150lbs torque .

[cross]

Has anyone herd if this happening on '09 696?