[DeTomaso] Pressure Plates

[Göran Malmberg]

I was figuring about this clamping force a bit. 
Somone talked about heavy pressure plate springs 
putting loads on axial crank bearings. Therefore 
never depressing the clutch during start ups. 
I was putting a new heavy diaphragm clutch in my 
car and noticed that the leverage of the multiply 
"arms" was way greater than that of a long style 
plate. Now, this needed a slave that 
had 1 and 1/2 of throw!!! Making the pedal back 
to stiff again. 

Now, the point is, as this plate need LESS pressure 
on the arms there should be only half the load on 
the crank bearing. But twice the arm travel. 
Of course, the load within the clutch combo is still 
VERY great therefore needing a solid housing. 

Not bad for saving crank and release beraings, isn’t 
it?
Goran
 

-----Ursprungligt mdelande-----
Från: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
För JDeRyke at aol.com
Skickat: den 20 juli 2009 19:42
Till: wdemelo at cogeco.ca; detomaso at realbig.com
Ämne: Re: [DeTomaso] Pressure Plates

In a message dated 7/19/09 6:40:29 PM, wdemelo at cogeco.ca writes:

> What has greater clamping force.....3 finger  or diaphram type?
> 
Doesn't matter. Clamp force is set by spring pressures. But generally, 
diaphragm pressure plates are easier to push in for a given clamp force,
due 
mostly to leverage. Cheers- J Deryke


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