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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 ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~