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RE: Fulcrum Pin

To: "'Cfgraf@aol.com'" <Cfgraf@aol.com>
Subject: RE: Fulcrum Pin
From: "Haynes, Mark" <mhaynes@ball.com>
Date: Thu, 1 Apr 1999 07:08:36 -0700
Cc: "'spridgets@autox.team.net'" <spridgets@autox.team.net>
Reply-to: "Haynes, Mark" <mhaynes@ball.com>
Sender: owner-spridgets@autox.team.net

> -----Original Message-----
> From: Cfgraf@aol.com [SMTP:Cfgraf@aol.com]
> Sent: Wednesday, March 31, 1999 6:43 PM
> To:   spridgets@autox.team.net
> Subject:      Fulcrum Pin
> 
> Ok, I got the front end rebuild kit with new lower fulcrum pins.  Now I
> see
> how this is supposed to work.  The pin is locked to the kingpin, so the
> fulcrum pin turns in it's threads as the A arm moves up and down.
> 
> Only the British would design a system like this, where the threads are
> moved
> when you hit a bump.  Since it moves the kingpin back and forth in the A
> arm,
> the spaces with the cork "seals" open and close on each cycle, introducing
> grit into the pivots.
> 
> Surely someone has reamed out the threads in the A arm, and installed a
> grade
> 8 bolt, with drillings to grease it.  How about it?  You Racer Guys can't
> possibly be using a stock fulcrum pin.  What gives?
> 
> Chuck
> 
> 59 Sprite
> 72 Lotus JPS
        [Haynes, Mark]  Yes, Virginia(er,Chuck), We racer guys use stock
fulcrum pins, the trouble is the double thread pitch and relative alignment
of the king pin versus the amount of engineering and fabrication time. We
tend to spend most of our time trying to fix what's broken from the last
race before the next, not finding new ways of 'shooting ourselves in the
foot'
        Mark Haynes (with many scars on my feet)
        '662 HAN6 RMVR

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