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Dave Hall wrote: >The heaters in the auto AAR valve look much like the auto-choke heaters on >carbs. My guess is theye elements get thin and high resistance as they corrode. >ISTR a new choke heater element came to around 12 ohms and an old to more like >20 when I measured them recently. Maybe this is what has happened here, so the >valve doesn't get hot enough for the bimetal coil to close it completely. I >guess an internal adjastment may be needed if you can do what Russ suggested. > > My AAR registers 13-14 ohms, and it does get warm to the touch, though not particularly hot. Judging from the pictures there's not much to the internal coil. It could still be binding and it just needs a whole bunch of heat cycles to get nice and loose. It could also work a lot better on an actual warm engine with the lid on, not an engine that's been idling for 20 minutes in my 25 degree garage. :) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~