Bill - Not sure what you mean by the "always on" blower unless you mean that the blower is always running at some speed unless the system is turned off. There is only the one blower AFAIK. I couldn't find any other in the manual either. I had a similar noise in my '81 SD as well and it turned out to be an old dry leaf that had found its' way in there rubbing on the squirrel cage. I did go ahead and lube the one end of the motor, the end that is accessible, with ATF. I have had no new noises since. It is really quite simple to drop the fan motor out on this beast. First you remove the knee bolster and, if it is still there, the closeout panel between it and the firewall. This makes the cover to the blower box very accessible. It is removed via a few screws. A few more screws and the fan motor just drops out. Just be careful of the power lead connector that you don't put any undue loads on it coming out. Reassembly is just the reverse. Oh yeah, note the screw lengths as they are not all the same, at least on mine. I am sending a couple of pages from the manual as well. The manual only shows the LH side bolster being removed but the right side is similar.
Barry > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Bill R > Sent: Tuesday, July 01, 2008 1:42 PM > To: 'Mercedes Discussion List' > Subject: [MBZ] always on blower motor 1981 300SD > > A couple of months ago the 'always on' blower started chirping - sounds > like a piece of paper got in there. It stopped for a few weeks, with just > occasional chirps, but has now returned pretty much full time. It > sometimes > stops on turns, but the controllable fan doesn't affect it [a tiny bit > sometimes]. Is this something a rank amateur can get into to get out > whatever the fan is hitting? Any way to snake a wire claw into the vents > to > get at it that way? > > Thanks - BillR > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -------------- next part -------------- A non-text attachment was scrubbed... Name: 83-120.pdf Type: application/pdf Size: 180363 bytes Desc: not available Url : http://okiebenz.com/pipermail/mercedes_okiebenz.com/attachments/20080701/243bd584/attachment.pdf -------------- next part -------------- A non-text attachment was scrubbed... Name: 68-150.pdf Type: application/pdf Size: 609942 bytes Desc: not available Url : http://okiebenz.com/pipermail/mercedes_okiebenz.com/attachments/20080701/243bd584/attachment-0001.pdf _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
