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

[James Murray (LMC)]

This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
--
[ Picked text/plain from multipart/alternative ]
Back in mid-December Paul K. sparked a discussion on Throttle Link Adjusmen=
t, some secret "S-Car trick" that Ray T. performed. I had heard of such a t=
rick but never understood it, so I wanted to try it myself thinking my thro=
ttle 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 linkag=
e 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 th=
en
	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 t=
he
	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 b=
et
	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 linka=
ge
	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 cab=
le
	can be adjusted - simply stretched to its limits.

	Ray