Re: spark plug and gaps

["Fred Munro" <munrof@isys.ca>]

Hi Stephane;

    The tri-electrodes are gapped at the factory.

    I used Bosch Silbers on my '86 5ktq and '91 200q with excellent results.
They are a conventional single electrode plug with a silver alloy centre
electrode and are recommended as an alternate to the tri-electrode plug.

HTH

Fred Munro
'94 S4  92k km

----- Original Message -----
From: Livolsi, Stephane <livols1@investorsgroup.com>
To: 'Audi Quattro List' <quattro@audifans.com>
Sent: Wednesday, November 17, 1999 12:11 AM
Subject: spark plug and gaps


>   I have had the car (86 5KTQ) for about a year and a half, it is
> totally stock and I have put on about 20,000 km since purchased
> (odometer reads 249000 km).  Dist cap, rotor, plug wires are all new.
> Hunted down and killed a couple of vac leaks.  I have looked at each
> plug and they are a nice even tan color and electrodes visually appear
> in good shape, but I did not measure the plug gap (at the time I thought
> it would be too much of a PITA).  I can hit 1.4 bar but there is a mild
> missing under heavy load (read as WOT!!) which goes away at higher rpm.
> I will be visiting a city that has a VW/Audi dealer this week and want
> to pick up some new spark plugs.
>
> Questions:
>
> 1. Are the Bosch tri-electrodes really the only suitable plug for this
> car?  Has anyone tried anything else? (I seem to recall a post from a
> lister who used the Platinum +4 plugs with no adverse results, even
> though the 10v turbo is specifically excluded)
>
> 2. Are the tri-electrode plugs reliably gapped from the factory, or do
> you have to gap them yourself?
>
> Thanks gang
>
> Stephane Livolsi
> 180 Yorston St
> Williams Lake, BC, V2G 3Z1
> ph 250-392-2637
> fax 250-392-2693
>
> '86 5KTQ stock (if you don't know what it means, you aren't in the club)
>