Thanks to all - This morning the outside temp was around 70F. The fan started about as one would expect, within a half a block of the house. Cool air came first, then the center vents shut, and hot air came. This was followed by the center vents opening about the time i was going to turn everything off and open the windows to let the heat out. Nice cool air came out the center vents for a few minutes, the they closed, and hot air came out the other vents. Followed by cool from the center vents again. This cycle continued all the way to work - 35 minutes, 25 miles.
This evening, the temp was 90+, and cool air blew the whole time. So when it should have been pulse width modulated, the mono valve seemed to be either on or off, ro - it was on the whole time, and the A/C was cycling. The center vents seemed to be working OK, in synch with the A/C, but the nice transparent, even cabin temp didn't happen. Amplifier? I'm going to install lots of voltage monitoring LEDs tomorrow in hopes of narrowing the possibilities. > > > Some of you may recall that I had a batch of blower motor brushes made > up last year. After I did so I stumbled across this web site: > http://www.carbonbrush.com/automotivebrush.htm > > Judging by my invoice from Schink Graphite, brush No. 54H on the web > page is the same width and thickness as the brushes I got from the brush > factory. The pigtail appears to be mounted from the side of the brush > rather than a recess at the end like the original, but since the brush > housing in the Bosch/Behr motor has a slot in it, I'd think it ought to > be workable. > > The carbonbrush.com brushes are about 1/6 inch shorter than the Schunk > brushes. They're also priced about 75 cents cheaper. and apparently > available in lots of less than two dozen, although I have NO experience > doing business with this vendor. The company name, address and phone > number is on their main web page, http://www.carbonbrush.com/ > > Russ Maki > Ixonia, Wis. > > _______________________________________ > For used parts email [EMAIL PROTECTED] > For new parts see www.buymbparts.com > For repairs see www.oldworldauto.com > > To Unsubscribe or change delivery options go to: > http://striplin.net/mailman/listinfo/mercedes_striplin.net > -- OK Don, KD5NRO Norman, OK '87 300SDL '81 240D '78 450SLC
