RGS clutch plates

  • Thread starter Thread starter Reggie3cl
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Reggie3cl

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Having a quick poke around in the clutch basket of The Rescue Dawg and there seems to be a discrepancy between the parts drawing and what I have.

I found 8 friction plates and 7 plain plates in there.  As far as I can see from the drawing there should only be 14 in total, alternating friction to plain for the first 12 and then two friction plates together at the back with some springs (usually thrown away IIRC).  Seems a bit odd to have two friction plates together at the back- has the DPO changed this to the more normal setup?

Clutch was quite heavy (better now I've refurbished the slave cylinder though) and was very sharp and quick to take up more like a dry clutch.  What's the best setup here- I've got a few unused plates if necessary, but what I seem to have is an extra plain plate...

Reggie
 
Hey Reggie,
Standard is 8 x friction and 6 x steel.
first two plates that are inserted when building the clutch are 2 x friction.
quite often you find owners add the extra steel plate

is okay as long as when all the plates are in place you still have some of the clutch hub spline showing so the pressure plate lines up correctly

HTH
Red
 
Reggie, I had to do that mod on my Corsa.
One day it just started slipping as the midrange kicked in.
Phil in Italia Classics in Lincoln said all it needed was an extra steel plate, which I bought from him. With no other change it completely cured the slipping clutch.
No idea why they did it that way, to do with the wee springs maybe?
I threw them away at the same time.
 
Hey Red

Hmm, OK, I'll bung it back together sans plain plate and hope it doesn't slip- might bung a couple of my new plates in at the back.  I haven't got a full set as they are a deal thicker than the o/e ones (relined perhaps) and to get the clutch working properly in my 180 I had to mix old and new to get the pack the right thickness.

Reggie
 
Hey Grant

See above.  Hopefully I can get the pack to the correct thickness- reckon that extra plate is too much and is affecting the operation of the unit.

Reggie
 
The double friction plate set up is only used if you are fitting the anti rattle springs.

Sounds like an extra steel plate has been jammed in to cure slip. I run seven Kevlar friction and six plain in my RGS, takes a little preload of the springs and lightens up the clutch a tad. Best way to fix it is to.....

Buy seven lovely Kevlar plates off me !

  sorry, was that blatant advertising?


     Keith
 
Ah, OK.  Kevlar plates?  In due course laddie.  Suspect saving up to pay for a head refurb a better bet at the moment ::)

 
OK, 7 friction and 6 plain looks as though is going to slip.  Keith say the double friction setup is only used with the springs, but is there any technical reason why I shouldn't go 8 and 6 (standard) without springs?
 
We had to bang in the extra steel plate at Spa she was sliping on the straight,Kevlar plates i can only dream about them,there again you could end up with your name on the bike should a set suddenly turn up  ::) ::) ::) ::) ::)
 
An extra clutch plate doesn't increase the friction area. It just pre-loads the springs by about 3mm. If you don't have a spare clutch plate you could get exactly the same effect by packing the clutch springs with washers.

Cheers,
Cam
 
What about the friction material to friction material performance? Will it transmit the power as efficiently as to a metal plate?
 
There's no movement between the two friction plates. They just act like one thick plate. The only way you'll get any clutch action going on is if you bung a steel plate between 'em.

Cheers,
Cam
 
Ah, interesting.  Hopefully a few new plates will get the pack sorted set up the standard way. 
 
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