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IndigoBlueCooperS
 Post subject: Clutch Pressure Plate
PostPosted: Sat May 04, 2013 6:12 pm 
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I am looking for a pressure plate to have lightened (to suite a diaphragm spring).
Are they all the same, or is there one that it more amenable to lightening than another?
At one stage someone told me the “Cooper S” one was better (or did this relate to the tax :roll: ).
The part number on mine is 22A598.
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TK
 Post subject:
PostPosted: Sat May 04, 2013 6:20 pm 
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Location: Brisbane
you need 22g270
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drmini in aust
 Post subject:
PostPosted: Sat May 04, 2013 6:38 pm 
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Location: near Baulkham Hills, NSW
TK wrote:
you need 22g270

22G270 is genuine the Cooper S one and is SG iron rather than grey iron (so Vizard says).
However it takes a bit of work to lighten them properly without weakening them. It's NOT a good idea to just face them thinner.
Have seen a shattered one, I would suggest it's a safer plan to buy an MED or Swiftune light steel one. :wink:

http://www.med-engineering.co.uk/catalo ... -backplate

http://www.swiftune.com/Product/1066/sw ... plate.aspx

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TK
 Post subject:
PostPosted: Sat May 04, 2013 7:13 pm 
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Agreed, wise words.
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IndigoBlueCooperS
 Post subject:
PostPosted: Sat May 04, 2013 8:12 pm 
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So I should sell the 22g270 Cooper S one I found and buy a MED one.
May be cost neutral, depending on how much tax people are willing to pay. :D
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drmini in aust
 Post subject:
PostPosted: Sun May 05, 2013 2:48 pm 
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Location: near Baulkham Hills, NSW
Indigo,
I have faced many Mini clutch backplates including the famous 22G270 one.
They all turn like grey cast iron, including the S one. :lol: I dispute whether they are really SG iron.
Cooper S tax eh- once installed you can't read the part number...:mrgreen:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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John Smidt
 Post subject:
PostPosted: Sun May 05, 2013 6:05 pm 
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Location: Windsor, NSW
The 22G270 His a ring to it when hit with a metal object, All others do Not

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The Sort Of House I Lived in, Or The Kind Of Car I drove ... But The World May Be A Better Place
Because I was Once Important In The Life Of A Child"
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Beanie
 Post subject:
PostPosted: Mon May 06, 2013 10:30 am 
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Just buy one of these ...
im running the same one in mine

http://www.ebay.co.uk/itm/Austin-Mini-U ... 35c710a932

cheap as chips ... really good to deal with too


Beanie

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kiwiinwgtn
 Post subject:
PostPosted: Mon May 06, 2013 7:14 pm 
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Kev it would be interesting to do a spark test on the 270 versus 22a one

They are deffinantly different muck
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IndigoBlueCooperS
 Post subject:
PostPosted: Mon May 06, 2013 9:19 pm 
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Beanie,
Are you using their flywheel as well?
Would need some straps and probably spacers and then a balance.
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Beanie
 Post subject:
PostPosted: Tue May 07, 2013 10:33 am 
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IndigoBlueCooperS wrote:
Beanie,
Are you using their flywheel as well?
Would need some straps and probably spacers and then a balance.


Ya flywheel too ...

i ordered the straps , spacers and bolts from Swiftune...

then had it all ballanced when it landed here .. flywheel and backing plate were pretty good .. it was the diaphram that was out the most ...

Beanie

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MORRIS COOPER S 501
 Post subject:
PostPosted: Sat Jun 01, 2013 6:50 pm 
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Location: nsw
IndigoBlueCooperS wrote:

Quote:
So I should sell the 22g270 Cooper S one I found and buy a MED one.
May be cost neutral, depending on how much tax people are willing to pay.



pm sent
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