Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 998 / 996 / 916 / 748 > Help identifying this slipper clutch 998

[skidlids]

Slipper clutches have a different build order to the normal clutches so whats in most manuals doesn't apply

Can't see why the two steel plates are together, not good for a slipper clutch, can't tell which order they came out in, did the two steels come out first or last.

as for convex plates, not having one isn't going to help and in the ones I use on track I usually use two, although I have known some racers to use a total of 4 convex plates

Getting the end gap right is also important

[Chaz]

Nothing wrong with 2 steel plates together(they don't spin against each other) you sometimes need to make up the pack thickness, 37mm on that clutch, starting with a friction plate & finnish with a steel you should have a least 1 dished plate.

[smilo006]

ball and ramp or just ramp?

[jacknash]

Hi thanks for info. Not sure if ball n ramp, need tool to get basket off! So if I get at least one dished plate (where?) And same number of friction plates and build to 37mm the job should be a goodun?

[jacknash]

Steels under pressure plate

[skidlids]

If it was my bike I Would still rather dump the extra 1.5mm Steel and change 3 of the other 1.5mm plates to 2mm, you have the same overall pack thickness


This is how I see it

Lets assume a clutch lift of 3.8mm
Your setup had 19 plates so thats 3.8mm/19 = 0.2mm gap per plate

I would rather have 18 plates so that you get 3.8mm/18 = 0.21mm gap per plate

Might not sound a lot but that extra 0.18mm of clearance across the pack can help reduce drag and the risk of cooking the clutch

[jacknash]

hi skidlids, thanks for your reply. Looking at the Barnett kit does it matter what model I buy it for? I believe the ST4S uses ally plates? Any idea if the 'full' kits also include the dished plate or is that a ducati only part?

Roughly hw many TD's can I expect from a clutch, I am not too harsh however I will 'use' the slipper as god intended!

thanks, jack