[T3] Cylinder Performance

[Dave Hall]

The plugs supplied by Bosch are gapped at 0.6mm, which is pretty much 24
thou (0.024").  I think I use 25 thou, as I have a feeler gauge that
thickness.

'Wire wheel'?  That's just an infinitely long wire brush!  You used to be
able to get a 12V spark plug cleaner that blasted fine abrasive grit at the
plug.  

Dave.
UK VW Type 3&4 Club
===================

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Adriel
Rowley
Sent: 18 June 2011 19:10
To: type3 at vwtype3.org
Subject: Re: [T3] Cylinder Performance




----------------------------------------
> From: jadney at vwtype3.org
> To: type3 at vwtype3.org
> Date: Sat, 18 Jun 2011 06:34:10 -0500
> Subject: Re: [T3] Cylinder Performance
>
> On 17 Jun 2011 at 18:00, Adriel Rowley wrote:
>
> > Pulled number three and was fouled: black as coal.  Wire wheeled it, 
> > and reinstalled.
>
> Cleaning a spark plug with a wire brush will leave metal tracks on the 
> insulator which will often allow the spark to go to ground along the 
> surface of the insulator rather than jumping the gap. You might want 
> to replace that plug now, or swap it with a different cylinder to see 
> if the problem moves.
>
Good to know about the brush, but I used a wheel, which if I understand
correctly, is fine to do.  Why could I not clean it?

I use a wire wheel as it cleans the spark plug, rather than having it take
up landfill space. ;)  Is there a better way to clean them?

snipped

> > Also, what about spark plug gap?  I am using the disk gapper, so 
> > thinking I could be in the range of 28 to 30 thousandths, and do not 
> > know if this is something to be aware of.
>
> Try reducing the gap a bit, to more like .024". Sometimes the larger 
> gaps make it more likely that the spark will "leak" out somewhere else 
> before it gets to the plug.
>
For some reason, I thought the gap was 0.028...  Will close it down.



Thank you so very much!
Adriel
 		 	   		  
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