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On 22 Jan 2002, at 11:01, Andrew Davidson wrote: > From: "Jim Adney" <jadney@vwtype3.org> > > On 23 Jan 2002, at 13:30, Dave Campen wrote: > > > You could remove the air intake bellows and spray "Gunk" (or whatever > your > > favourite engine degreaser is) through the vanes of the pulley, > trying to > > spread it round as much as possible. Then just hose out and let > it dry. > > Now I don't know what to think, but I don't think I'd be willing to do > this. The > problem is that the Gunk would just flush the dirt out of one > location and > deposit it in another. If it lands in my driveway, well that's > pretty simple, but if > it builds up in the generator and on the face of the > oil cooler, then I'm not > sure I'd be happy with the result. > Could I loosen the generator and then insert a shield temporarily between it and > the fan housing whilst I carry out the flushing? > At the same time disconnect the elbows which lead from the fan housing to > the heating system ? (One has a perforated rubber hose anyway) > then spray away, as suggested. These sound like quite reasonable ways to get around these objections. You should not start with a hot engine, or the thermal shock might be hard on some parts. > I think the oil cooler probably has plenty of mess on it already (maybe the > generator also, although at least gravity would top the bigger ones going in). > However I could spray in from under the car and thoroughly drench it (with the > engine off) in order to flush it out as well. I never thought of trying to "backflush" the oil cooler this way. It might actually have some merit. > BTW what is the purpose of the thin "fresh air pipe" which runs from the > elbow to the "warm air mixer"? I just noticed it in the bentley. The fresh air and heated air meet in a chamber where the cool fresh air is mixed in with the heated air by a thermostatically controlled valve. This limits the temp of the air getting into the car, while increasing the total volume of air supplied. - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org