[T3] Spark plug blown out of #4 cylinder

[Mike Fisher]

I recall Russ Wolfe saying the K&E heli-coil/tool was the best he'd found.

On Mon, Jul 18, 2011 at 8:41 PM, Jim Adney <jadney at vwtype3.org> wrote:
> On 18 Jul 2011 at 21:16, crash 69 wrote:
>
>> In talking with experienced folks, I've been told TimeSerts are better than
>> Helicoil.  I've never used them myself.  Any opinions out there?
>
> The one thing that I don't like about the solid inserts is that they
> tend to come out again each time you remove the spark plugs. The
> TimeSerts are better, because the nose gets swaged into the head,
> making backout much less likely. OTOH, this swaging operation puts
> the alum around the chamber side of the head under tension, in a
> place where the heads tend to crack anyway.
>
> HeliCoils have a couple advantages. One is that they spring outward
> and tend to lock themselves in position, but over their full length
> and not with excessive force. The other is that they leave the
> seating face where the plug comes to rest untouched. Both of these
> minimize changes in the thermal path from the plug to the head.
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
> _______________________________________________
> VWType3.Org mailing list - type3 at vwtype3.org
> http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org
> Contact gregm at vwtype3.org if you need help with the list.
>



-- 
http://s169.photobucket.com/albums/u236/mr_bojangles500/