* wrote:
>
> jeffcoslacker > wrote in article
> >...
> >
> >
> > I'll cocurr with the others...cracked insulator or damaged plug wire
> > most likely, gap not so much so, but possible...if they were platinum
> > plugs with the preset gap, they are rarely ever wrong...the electrode
> > is tough as hell and doesn't bend easily..
> >
> > I agree also, Bosch Plats are crap, I'd throw them away if that's what
> > you got, get Motorcraft or Autolite for it...
> >
> >
>
> I, for one, would be interested in hearing what, exactly, is "crap" about
> the Bosch plugs.
>
> Resistors? Metallurgy? Ceramic composition?
>
> Where do they fail in your testing?
>
> What type of testing did you subject them to?
>
> What is it, exactly, that makes them inferior to other spark plugs?

Don't know what is wrong with the suckers, but if you put them in a Jeep
4.2 carb engine and in most Jeep 4.0 FI engines, they will work for a
few miles, then they carbon up and the engine starts running like crap,
especially at idle. Pull them out, put some real plugs in like Champion
and bingo, the engine runs well again.

I have seen this well over a half dozen times in the last few years and
the fix is always to toss the plugs out.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)