Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Max Dillon via Mercedes
Thanks Curly and Wilton. Very nice to have fixed it for a nice low price. Fortunate I found it so quickly. There are several yards scattered about Charleston, a couple up the road a bit in Summerville that I need to check out someday. Yes, big heat sink on the blower regulator is called a

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread wiltonw--- via Mercedes
Where's the 124 porcupine? Directly above front passenger's feet in my/Tim's 350SDL. Replaced it once with shaky hands and bassackward view via mirror; got it done anyway. Wilt Max Dillon via Mercedes mercedes@okiebenz.com wrote: Thanks Curly and Wilton. Very nice to have fixed it

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Peter Frederick via Mercedes
It's under the blower motor in the fan housing, kinda a pain to get out (you have to hold your left hand in the right position as you fish around with your right, etc). Usually dirty, too. Peter ___ http://www.okiebenz.com To search list archives

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Max Dillon via Mercedes
Yes, buried under the hood, under the windshield wiper and all the rain gutter pieces at the base off the windshield. -- Max Dillon Charleston SC '87 300TD '95 E300 On February 21, 2015 6:38:32 PM EST, Peter Frederick via Mercedes mercedes@okiebenz.com wrote: It's under the blower motor in the

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Curly McLain via Mercedes
On Fri, 20 Feb 2015 18:47:17 -0600 Peter Frederick via Mercedes mercedes@okiebenz.com wrote: You can get replacement electronics. Chinese, so who knows how long they will last, but the cheap replacement I put in the wagon works fine with the new blower.\ You cannot replace the

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Jim Cathey via Mercedes
I don't think a DC motor is going to care how the RMS voltage and current are decreased. No. It doesn't usually even care that it is _DC_! The 'universal' motor type, in other words. The porcupine is also mounted in the airflow from the fan so its supplemental heat is used. (Unless you have

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Max Dillon via Mercedes
Dan, copy on the steering wheel. All: new regulator works. -- Max Dillon Charleston SC '87 300TD '95 E300 ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to:

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Dan Penoff via Mercedes
Thanks, Max. I suspect that something like this would go in short order, but it's a long shot I'm willing to take. A good price for a used one that's in decent condition without an air bag is probably $200. I have a spare airbag so that's not a concern. Dan On Feb 21, 2015, at 12:36 PM,

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Craig via Mercedes
On Sat, 21 Feb 2015 08:49:03 -0600 Curly McLain 126die...@gmail.com wrote: Right. the dodge resistor pack is essentially an electric heater. It provides supplemental heat as it is mounted. dogde mounts it in the heater duct through the front of the firewall. so the heat goes into the

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Dan Penoff via Mercedes
Max, This goes for everyone on the list: If anyone sees a wood and leather steering wheel on an R129 or W140 in the knackers, let me know. They are pretty much interchangeable between the two chassis. I watch for them on eBay regularly but they're usually trashed or stupid expensive. A guy

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Max Dillon via Mercedes
Home from LKQ now, $11.25 for a used blower regulator from a '91 coupe, 157k miles on the clock. Rich, there were a coupe 126 cars, both gassers, coupe and a sedan. If I get this in quickly, and it works, may go back for the nice black steering wheel in the coupe. Didn't have my torx bits

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Max Dillon via Mercedes
The new blower regulator is installed and working, took about an hour and forty-five minutes. I realize now that as the old regulator was failing, it may have been generating a lot of heat. I noticed that setting the temp lower would not always produce lower vent air temperature, especially

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Curly McLain via Mercedes
Dan, copy on the steering wheel. All: new regulator works. -- Max Dillon Charleston SC '87 300TD '95 E300 That is a score! Congrats and attaboy! ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread Curly McLain via Mercedes
On Sat, 21 Feb 2015 08:49:03 -0600 Curly McLain 126die...@gmail.com wrote: Right. the dodge resistor pack is essentially an electric heater. It provides supplemental heat as it is mounted. dogde mounts it in the heater duct through the front of the firewall. so the heat goes into the

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-21 Thread wiltonw--- via Mercedes
ATTABOY! Does the 124 have a porcupine? Wilt Max Dillon via Mercedes mercedes@okiebenz.com wrote: The new blower regulator is installed and working, took about an hour and forty-five minutes. I realize now that as the old regulator was failing, it may have been generating a lot of

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-20 Thread Max Dillon via Mercedes
Yes, I should have written blower regulator vice blower. -- Max Dillon Charleston SC '87 300TD '95 E300 On February 20, 2015 12:52:58 AM EST, Craig via Mercedes mercedes@okiebenz.com wrote: On Thu, 19 Feb 2015 23:07:10 -0500 Max Dillon via Mercedes mercedes@okiebenz.com wrote: May go by the

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-20 Thread Jim Cathey via Mercedes
You cannot use a rheostat to regulate blower speed manually, the thing would have to be good for dropping quite a bit of power. (Think: Frankenstein movie prop, that level of technology.) Consider the heat sink fins that are on the porcupine itself, or the physical size and robustness of the

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-20 Thread Peter Frederick via Mercedes
You can get replacement electronics. Chinese, so who knows how long they will last, but the cheap replacement I put in the wagon works fine with the new blower.\ You cannot replace the controller with a resistor, it's a duty cycle controller, controls fan speed by switching the ground in

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-20 Thread Max Dillon via Mercedes
Plan A is find a used from a later gasser at the knackers tomorrow (predicted high of 63F, whoohoo!). Plan B will be a toggle switch to provide full power until I can repeat Plan A. -- Max Dillon Charleston SC '87 300TD '95 E300 On February 20, 2015 7:47:17 PM EST, Peter Frederick via

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-20 Thread Craig via Mercedes
On Fri, 20 Feb 2015 18:47:17 -0600 Peter Frederick via Mercedes mercedes@okiebenz.com wrote: You can get replacement electronics. Chinese, so who knows how long they will last, but the cheap replacement I put in the wagon works fine with the new blower.\ You cannot replace the

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-20 Thread Curly McLain via Mercedes
You cannot use a rheostat to regulate blower speed manually, the thing would have to be good for dropping quite a bit of power. (Think: Frankenstein movie prop, that level of technology.) Consider the heat sink fins that are on the porcupine itself, or the physical size and robustness of the

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-20 Thread fmiser via Mercedes
Peter wrote: You cannot replace the controller with a resistor, it's a duty cycle controller, controls fan speed by switching the ground in and out. Blower will probably burn up if you use a resistor instead, it's meant to run full power or none, not by controlling current to the blower.

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-19 Thread Max Dillon via Mercedes
Thanks, I'll dig into the archive... May go by the knackers Saturday, see if a good used blower is to be had. Rich, up for a trip to the knackers? -- Max Dillon Charleston SC '87 300TD '95 E300 On February 19, 2015 9:35:20 PM EST, Curly McLain via Mercedes mercedes@okiebenz.com wrote: W126

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-19 Thread Craig via Mercedes
On Thu, 19 Feb 2015 23:07:10 -0500 Max Dillon via Mercedes mercedes@okiebenz.com wrote: May go by the knackers Saturday, see if a good used blower is to be had. From what I picked up from the thread, you'll need the something that drives the blower instead of another blower. Craig

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-19 Thread Curly McLain via Mercedes
Did someone on this list post a cheap solution for bypassing the blower motor voltage regulator with a rheostat for manual control of the blower? ___ Ja, read the archive from November ___ http://www.okiebenz.com To search list archives

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-19 Thread Meade Dillon via Mercedes
OK, pretty sure I've isolated to the regulator. There is a three-pin connector that comes out of the fan housing to a firewall connection on the driver's side. Yellow, red and black wires, go to the voltage regulator (N29 on the wiring diagram). Red is power from the 30A fuse on the drivers

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-19 Thread wiltonw--- via Mercedes
I used a simple ON/OFF toggle switch to operate blower in my 350SDL on a weekend years ago. Wilton Meade Dillon via Mercedes mercedes@okiebenz.com wrote: Did someone on this list post a cheap solution for bypassing the blower motor voltage regulator with a rheostat for manual control of

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-19 Thread Meade Dillon via Mercedes
Did someone on this list post a cheap solution for bypassing the blower motor voltage regulator with a rheostat for manual control of the blower? ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change

Re: [MBZ] 124 HVAC blower motor diagnosis

2015-02-19 Thread Curly McLain via Mercedes
W126 I cut off the harness from the dead porcupine, wired a toggle switch into if, with terminals to hook up the motor. Yellow not needed. I drilled a hole in the bottom of the box where the porcupine had been and put the toggle switch there. I htink the 124 is similar. When I was able