[s-cars] Throttle adjustment opinion? (Photo Link included)

Bill Mahoney wmahoney at disk.com
Tue Jan 21 12:43:14 EST 2003


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RE: [s-cars] Throttle adjustment opinion? (Photo Link included)Hey Jamu et
al
Thanks to all for this little tweek.  Pretty EZ as I did it in 18 degrees
while briefly staying with my sick daughter this AM.
Noted diff in much smoother on/off throttle while cruzzin,
thankyouvherimhuch!
cheers'
Bill m  - wondering whats up with all the fuzz drivin around with radar off?

-----Original Message-----
From: James Murray (LMC) [mailto:James.Murray at ericsson.ca]
Sent: Tuesday, January 21, 2003 11:08 AM
To: 'Mark Strangways'; 'Cody Payne'; ray at s-cars.org; Tom Mullane;
wmahoney at disk.com; 'Paul Krasusky'
Cc: s-car-list at audifans.com
Subject: RE: [s-cars] Throttle adjustment opinion? (Photo Link included)


  Not very "techy"... but very wise, I like the common sense approach.

  Thanks !

  /J.

    -----Original Message-----
    From:   Mark Strangways [SMTP:strangconst at rogers.com]
    Sent:   January 21, 2003 10:20 AM
    To:     James Murray (LMC); 'Cody Payne'; ray at s-cars.org; Tom Mullane;
wmahoney at disk.com; 'Paul Krasusky'
    Cc:     s-car-list at audifans.com
    Subject:        Re: [s-cars] Throttle adjustment opinion? (Photo Link
included)

    Perhaps the final test should be to remove the intake hose at the TB,
and
    SEE if the throttle plate is in the appropriate position. This would be
as
    little plate as possible interfering with the air stream.
    I have seen in other makes, a tend to go too far over center by a bit.
    Supposedly this would allow some slack in the cable while having the
foot
    throttle stop at the floorboard.

    Not very techy, but I'm sure this would be the old school type of check.
;-)
    Not that I'm old school, just lazy :)

    regards,

    Mark S
    ----- Original Message -----
    From: "James Murray (LMC)" <James.Murray at ericsson.ca>
    To: "'Cody Payne'" <Cody.Payne at bconnected.com>; <ray at s-cars.org>; "Tom
    Mullane" <tmullane at snet.net>; <wmahoney at disk.com>; "'Paul Krasusky'"
    <KrasuskyP at FirstInterBank.com>
    Cc: <s-car-list at audifans.com>
    Sent: Tuesday, January 21, 2003 9:44 AM
    Subject: [s-cars] Throttle adjustment opinion? (Photo Link included)



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    Back in mid-December Paul K. sparked a discussion on Throttle Link
    Adjusment, some secret "S-Car trick" that Ray T. performed. I had heard
of
    such a trick but never understood it, so I wanted to try it myself
thinking
    my throttle probably needed adjustment. I followed the Bentley procedure
    first and recorded it in the link below. This seems the right way to me
but
    I after I finished I still had lots of slack (same as before) but yet
the
    pedal hit the floor at WOT? This seems correct to me as it doesn't
stress
    the linkage when pedal is to the floor, but am I missing something on
this
    elusive "S-car" trick? Opinions welcome...

    A few quick photo's makes it easier to explain:

    http://www3.sympatico.ca/wadleigh/Throttle/Throttle_Adjustment.htm



    Cheers, /Jamu.

    Ray's "S-car Trick" and Tom's advice below:

    -----Original Message-----
    From: Ray Tomlinson [SMTP:ray at s-cars.org]
    Sent: December 17, 2002 2:01 PM
    To: 'Tom Mullane'; s-car-list at audifans.com
    Subject: RE: [s-cars] RE: throttle link adjustment

    For those of us running without Audi's over-engineered "comfort" gas
pedal,
    it is easy to notice if you have overtightened the throttle cable, as
Tom
    suggested.

    It is easier, however, to have someone floor the throttle, while you
rock
    the throttle linkage to see if there is still slack to be taken up by
the
    cable adjustment.  Then you will know how much you need to take up, and
then
    go from there.

    DISCLAIMER:  The aforementioned assumes the vehicle is not running,
i.e.,
    "off".  To be sure,  remove all spark plugs, all gasoline, ignition
    solenoid, ignition, fuel pump, fuel pump relay, BOTH PSO's, and battery.
    The aforementioned assumes further that you generally drive a Honda
Accord
    or Ford Tore-ass, and remain unsure as to whether your car is running or
    not.




    -----Original Message-----
    From: s-car-list-admin at audifans.com
    [mailto:s-car-list-admin at audifans.com]On Behalf Of Tom Mullane
    Sent: Tuesday, December 17, 2002 12:43 PM
    To: s-car-list at audifans.com
    Subject: [s-cars] RE: throttle link adjustment



    Be careful doing this!  Make sure you do not over tighten!

    When the pedal is pushed to the floor, the throttle should be wide open.
    The adjustment is at the throttle body and is not difficult to figure
out.
    Trial and error is a good method.  Be careful; if you over tighten, you
run
    the risk of breaking the cable or the linkage.
    (BTDT on a few VW's)

    Tom Mullane
    Hartford, CT
    91 200Q
    91 CQ
    99 A6Q
    Various other crap...

    -----Original Message-----
    From: Ray Tomlinson [SMTP:ray at s-cars.org]
    Sent: December 17, 2002 1:36 PM
    To: 'Bill Mahoney'; s-car-list at audifans.com
    Subject: RE: [s-cars] link adjust was: wastegate screw

    Bill,

    Before adjusting the throttle cable, check to make sure your throttle
    position sensor is properly aligned.  When you just touch the throttle
    linkage open, you should hear a click.  This, of course, tests only that
the
    switch opens and closes "physically", as opposed to whether the switch
    properly bumps up the fuel enrichment.

    Next, look at the throttle cable.  See where the cable mounts atop the
    throttle body?  See the little metal clip that slips over the grooved
    sleeve?  BEFORE removing the clip, pull the cable away/straight back.  I
bet
    100% of the cars on the road (that have not already adjusted their
cables)
    need adjustment.  How much can you pull the cable back before the
throttle
    linkage on the TB begins to swing the butterfly's open?  1/2" or so?
Pull
    the clip, then reinsert the clip right before the point where the TB
linkage
    begins to actuate the Throttle Position sensor.  If the sensor is
properly
    aligned, then you will notice that the TP sensor is not triggered until
the
    linkage moves ever-so-slightly.

    If your car is like mine, Paul's, and all the UrS's with about 100k on
the
    clock, you will also note that this may be the last time your throttle
cable
    can be adjusted - simply stretched to its limits.

    Ray






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