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On 20 Jan 2005 at 20:54, Dave Pallo wrote: > What does the aux air regulator do for the crankcase vent system?...best I > can tell, it's a pcv valve?.....it allows crankcase air (and fumes) to get > sucked into the air intake distributor for burning, and it also allows > clean air to be drawn in (from air cleaner via a braided hose) to replace > the air drawn out, correct?? The AAR doesn't do anything with crankcase gasses. It simply admits extra air to boost the RPMs when the engine is cold. Sort of an automatic throttle. > then what is the function of the black crankcase vent box located next > to the blower housing, which also has a braided hose? That's the crankcase breather. Crankcase gasses leave the case there. Where they go after that depends on the year. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~