Russ - According to George Murphy the issue was not just to get the brushes to fit, it was the hardness of the brush compound. George found that the brushes that the Germans used were of a much softer composition than the ones we make here. Evidently the local brushes being harder caused premature commutator wear. That's what makes his "special".
Barry -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Russ Maki Sent: Friday, July 01, 2005 8:55 AM To: Mercedes mailing list Subject: Re: [MBZ] Mono valve??? Richard Hattaway wrote: >Then you have to make the decision about replacing the fan motor if >found bad, or putting new brushes in it. Our friend George Murphy has >the brushes, and I am SURE that if he has them there are multiple other >sources as well.. (c: New motors are expensive. So you may want to >talk to your local motor rebuilder if budget is an issue. > >Richard >K4PKV > > 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.
