[F500] clutching questions

[McAbee, Chuck]

Without having a 'official' clutch offset gauge.  A method to align Polaris
drive and driven clutches.  

Hold a straight edge flush with the back of the drive clutch, bridging
between the drive and driven clutch's.  Measure between the clutch facing
edge of the straight edge and the back of the driven clutch.  It should be
approximately 5/8 inch.  You are measuring to the back face of the clutch
itself, not the back edge of the helix.

If the distance measured on the edge of the driven clutch nearest the drive
clutch, and the distance measured on the edge of the driven clutch furthest
from the drive clutch are equal, then the drive and driven clutches are
properly parallel...if the distances are not equal, then either the
jackshaft or the engine are not properly aligned. (most likely the engine
has in someway twisted on its mountings....since most jackshaft mountings
are 'solidly' fixed by having the bearing carriers being a part of the
frame).  The jackshaft and the engine MUST be mounted in parallel planes or
everything will bind and cause premature clutch belt destruction.

For further clutching questions obtain the Aaen Clutch book from Aaen
Performance.....it's the Bible when it comes to CVT clutches and at $10 to
$12 or so, it will save many hours of aggravation.

Chuck McAbee
SEDIV #16  

> -----Original Message-----
> From:	Madurski, Ronald M. [SMTP:RONALD.M.MADURSKI at saic.com]
> Sent:	Tuesday, August 27, 2002 08:15
> To:	f500 at www.f500.org
> Subject:	RE: [F500] clutching questions
> 
> 
> Not having an alignment tool myself, I just run the car up about half
> throttle and then let it idle back down.  Wherever the secondary ends up
> on
> the shaft after that is where I tighten it down (unless it looks way out
> of
> whack).  I'm running a Kaw motor and 5.5:1 for gearing.  It works for me,
> but the top end is pretty low (maybe 70-75 MPH).
> 
> Ron Madurski
> FM 124
> 
> : -----Original Message-----
> : From: R&D Ergonomics Inc. [mailto:RDErgo at gwi.net]
> : Sent: Friday, August 23, 2002 2:09 PM
> : To: f500 at www.f500.org
> : Subject: Re: [F500] clutching quetions
> : 
> : 
> : 
> : ----- Original Message -----
> : From: <TonyJag3 at aol.com>
> : To: <f500 at www.f500.org>
> : Sent: Friday, August 23, 2002 12:04 AM
> : Subject: Re: [F500] clutching quetions
> : 
> : Tony,
> : 
> : As you may know I have MS, I can't drive to Devins and back 
> : and race in the
> : same day, my body won't take it. Devins and NHIS are a long 
> : haul for me....
> : 
> : We are still trying to sort out the car, it is getting 
> : better, new tires
> : helped a lot. Since we got the tires Rick and I have beat 
> : Mike Picher 2 out
> : of 3 events. Now the clutches need some work. It bogs badly 
> : on the start and
> : isn't backshifting well. I'd love to setup the clutch to 
> : minimize how much
> : it moves on the jackshaft but I have no idea how much offset 
> : we should have
> : with the Polaris primary and secondary on the car. I just ordered new
> : springs and the large bushing, and new buttons to freshen up 
> : the driven
> : clutch. We will be adjusting the drive clutch upon receiving 
> : the new belt as
> : well. Hopefully it will do the trick
> : 
> : Dan Morency
> : T87 Red Devil #10
> : 
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