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Re: [T3] Idling Too Fast

On 2 Jun 2005 at 15:37, raru wrote:

> On 6/2/05, Jim Adney <jadney@vwtype3.org> wrote:

> > CORRECT FI intake manifold gaskets (NOT the metal beetle ones) installed? Are
> > the surfaces there clean and smooth with no dirt trapped that would hold the
> > sealing surfaces apart?
> where do we get these?

Dealership, VW supplier, I use my old ones with new paper on the faces. I have 
a few spares here.

> > It is important that you tighten down both intake air runners and the intake
> > air distributor ONLY after you have pushed all of them together in the big
> > short rubber connection hoses that seal them together. If you bolt the IAD down
> > tightly and then install the pipes you'll find that there is stress between
> > those parts that tends to hold those hoses open so they can't seal. I see a LOT
> > of engines with hose clamps on these, but those are completely unnecessary, and
> > probably counterproductive, if they are assembled with some thoughtfulness.
> i've done this wrong, thanks for the advise on assembly.
> > One way to look for vacuum leaks is to take an UNLIT propane torch and spray
> > propane gas around suspicious places. Put some tape around the air inlet holes
> > in the torch tip and this will make the tip spray almost pure propane. For big
> > leaks, sucking in pure propane instead of air should make the engine run
> > differently whenever the gas is sprayed over the area where the air is leaking
> > in.
> can't you do the same with carb cleaner?  same concept and i can't
> imagine the carb cleaner would do any harm.  only propane i got is on
> my gas grill.  :)

Not sure, but carb cleaner MIGHT work. The advantage of propane is that it will 
get anywhere and displace the air in that volume, while a liquid might not.

Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA

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