Re: 16v Tip-O-The-Day

[Mash <type53@yahoo.com>]

--- Benjamin Harder <vwtype53@yahoo.com> wrote:
>  I have owned my 16v for over 3 years now and the
> car has never run just quite
> right...the idle usually "floats" a bit and cold
> starts/running has always been
> rough.  I have done much troubleshooting and tried
> many things to correct these
> issues, like thourogh cleaning of the intake, TB,
> and idle stabilizer.  I have
> checked the coolant temp sender and various wiring
> in my search for a perfect
> idle...
>   So, while doing some cleaning and inspecting I
> notice that my intake boot
> has this nice crack...hidden under the metal clamp
> at the throttle body!
> Hmmm...wonder if this could be the cause of my
> problems?
> So, I borrow a spare intake boot from Marco and gave
> it a try...
> What a difference!!  After fooling around with the
> idle a little I was able
> to get it more stable than ever...and as for
> driving...the 16v feels stonger
> then ever!  I watched my air/fuel gauge hit the
> "Rich" area for the first time
> ever.  I have always wondered why my 16v would never
> indicate anything past the
> middle of stoich.  My guess is that the crack caused
> a good enough vacuum leak
> so that just enough extra air entered the intake
> that was not measured, which
> would cause the engine to run a little lean, right? 
> It's so great to be able
> to actually *see* this change with the stoich gauge!
>   Now my 16v runs better, and even starts a little
> better...and even idles
> better than before!  So, those of you that have
> encountered similar issues, it
> is my suggestion to remove your intake boot and
> carefully inspect it for
> cracks.
> Make sure to bend it and look for dry-rotting too...
> 
> Well, this concludes Ben's tip-o-the-day

Good tip for 8V's too!


=====
Mark Peele
1982 Scirocco, 1981 Scirocco, 1978 Scirocco, 1987 Golf GT
http://www.scirocco2.de/mark.htm
Direct Mail: SCIROCCO_GTX@YAHOO.COM
For Sale: Various VW 13" Steel Wheels - free - you haul.
Need parts? try http://www.parts4vws.com/ (Potterman)
or http://www.germanautoparts.com/ (Adirondack)

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