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

[jacknash]

Hi

This naughty lil bugger burnt out at Mallory after just 2 sessions. The bike is new to me so I will let it off this once!

Anyways I dont recognise it and it has no name on it or part number to google!





The following plates (S) with Friction plates came out (F)

1xS 2mm
1xS 1.5mm
1xF
1xS 1.5mm
1xF
1xS 1.5mm
1xS 1,5mm
1xF
1xS 1.5mm
1xF
1xS 1.5mm
1xF
1xS 1.5mm
1xS 2mm
1xF
1xS 1.5mm
1xF
1xS 1.5mm
1xF

TOTAL 37.5mm

All Steels are flat, no convex.

I need new Friction plates, unsure how many to buy as the 998 should have 6 Friction plates. Robbing Shazaams info, seems the 996S / SPS plates should work?

Haynes Manual: 748, 916, 996

7 friction plates - one curved plate with two friction surfaces

Minimum friction plate thickness = 2.8mm

2.0mm plain plate #1 2.0mm plain plate #2 3.0mm friction plate #1 1.5mm dished plain plate (convex side facing toward you) 3.0mm friction plate #2 2.0mm plain plate #3 3.0mm friction plate #3 2.0mm plain plate #4 3.0mm friction plate #4 2.0mm plain plate #5 3.0mm friction plate #5 2.0mm plain plate #6 3.0mm friction plate #6 2.0mm plain plate #7 3.0mm friction plate #7 2.0mm plain plate #8 pressure plate (line up marks)

38.5mm plate stack height

Haynes Manual: 916SP, 916SPS, 996S, 996SPS

8 (thinner) friction plates - two curved plates with one friction surface each

Minimum friction plate thickness = 2.3mm

2.0mm plain plate #1 1.5mm dished plain plate #1 (convex side facing toward you) 2.5mm friction plate #1 1.5mm plain plate #1 2.5mm friction plate #2 2.0mm plain plate #2 2.5mm friction plate #3 2.0mm plain plate #3 2.5mm friction plate #4 2.0mm plain plate #4 2.5mm friction plate #5 2.0mm plain plate #5 2.5mm friction plate #6 2.0mm plain plate #6 2.5mm friction plate #7 1.5mm plain plate #2 2.5mm friction plate #8 1.5mm dished plain plate #2 (convex side facing away from you) pressure plate (line up marks)

38.0mm plate stack height

Ducati Service Manual: 998

6 friction plates - one curved plate with two friction surfaces

Minimum friction plate thickness = 2.8mm

2.0mm plain plate #1 1.5mm dished plain plate (convex side facing toward you) 2.5mm plain plate #1 1.5mm plain plate #1 3.0mm friction plate #1 2.0mm plain plate #2 3.0mm friction plate #2 2.0mm plain plate #3 3.0mm friction plate #3 2.0mm plain plate #4 3.0mm friction plate #4 2.0mm plain plate #5 3.0mm friction plate #5 2.0mm plain plate #6 3.0mm friction plate #6 1.5mm plain plate #2 2.5mm plain plate #2 1.5mm dished plain plate (convex side facing toward you) pressure plate (line up marks)

38.0 mm plate stack height

Stack Height

A too-high overall thickness of the plate stack will cause drag between plates when the clutch is disengaged making it difficult to select neutral when the bike is stopped.

The last 2mm steel plate can be interchanged with a 1.5mm curved plate facing away from you if you want to adjust the stack to get the 38mm stack thickness, or if you want a more progressive, soft clutch engagement. A commonly-used substitution that adds an additional spring plate to the stack.

Any of the steel 2mm plain plates can be exchanged with 1.5mm plain plates to reduce stack thickness or increase stack thickness as needed to achieve your desired overall height. You will see the need for this as friction plates wear, so keep your steel plates from pervious clutch replacements as spares to be used as height adjustments later. The 2mm and 1.5mm steel plates only need replacing if they’re scored or warped.