everybody better take care of their 123 blowers!!! - Page 5 - PeachParts Mercedes-Benz Forum

Stretch · #61 01-17-2012, 04:34 PM

Quote:

Originally Posted by steeleygreg

Army, I might be going down this road with a bad blower that quit yesterday. Any idea on who made those bearings ?

Greg

Nope sorry not yet - that's still on my to do list...

I recommend you take it easier than I did!

97 SL320 · #62 01-17-2012, 09:58 PM

The bearing in this motor looks to be a self aligning bushing, it is doubtful you will find any numbers on it. Items like this are custom made my the manufacturer. ( in this case Bosch ) The other half of the "bearing" is the shaft, once it gets worn the shaft will bounce around it the bushing rather than spin.

As for Mercedes pulling licensing for a generic replacement part, this is the first I've heard of such a thing for any car maker, has this been verified?

steeleygreg · #63 01-18-2012, 02:01 PM

I'm going to pull the blower motor tonight out of the car. It get a little cold not to have heat at this time of year........ Yes, I know that I can replace the brushes myself, but due to the age, I'm taking it to a generator repair shop nearby which has been in business for over 50 years. (I trust them). Plus and more important, if it needs bearings this guy will have them, also he's got a lathe to turn the commutator. With new bushes, possible bearings this may last for another 25 years.

Now as a backup plan, I'll investigate that bosch motor that has been mentioned in this thread.

Greg

Stretch · #64 01-18-2012, 03:14 PM

Quote:

Originally Posted by steeleygreg

I'm going to pull the blower motor tonight out of the car. It get a little cold not to have heat at this time of year........ Yes, I know that I can replace the brushes myself, but due to the age, I'm taking it to a generator repair shop nearby which has been in business for over 50 years. (I trust them). Plus and more important, if it needs bearings this guy will have them, also he's got a lathe to turn the commutator. With new bushes, possible bearings this may last for another 25 years.

Now as a backup plan, I'll investigate that bosch motor that has been mentioned in this thread.

Greg

If your repair shop is prepared to part with a manufacturer's name for the bearings - well that would be nice!

steeleygreg · #65 01-19-2012, 11:16 AM

I pulled the motor out of the car. 30 years of graphite and crud is not a nice thing to see, or clean up. My fan motor is similar to the above mentioned bosch 0 130 111 134 fan as depicted below. Spinning the squirl cage resulted in some resistance and did not spin freely.

It appears that the squirl cage is pressed on to the shaft. What is the recommended way to remove the cage from the motor ?

Greg

charmalu · #66 01-20-2012, 01:48 PM

This is from a W116, but probably similar.

Disassembling a 116 blower motor

anyone ever taken the blower motor apart?

Charlie

Stretch · #67 01-20-2012, 01:52 PM

Good link Charlie! (I wonder what I did to knacker mine so much...)

steeleygreg · #68 01-21-2012, 02:21 PM

Well Blower motor works.

Was filthy from graphite and crud. The problem seems to be a bad switch, for I couldn't get any voltage readings with a meter.
Here are the pic. Getting the fan off the shaft wasn't that hard. The trick is to use a lubricant and a heat gun to soften up the plastic hole which the shaft goes thru. Place the motor between two supporting pieces of wood. Place the supporting blocks against the sides of the motor so the maximum surface area of the squirrel cage is supported. Take a drift and a ball beam hammer to and give a few sharp blows which will result in the motor dropping out away from the squirrel cage.

Next I used some light machine oil and applied to top and bottom bearing and let soak in.

steeleygreg · #69 01-21-2012, 02:26 PM

Although my non functioning blower motor problems lies elsewhere, I decided to do some PM and cleaned it up. Here are the cleaned blower parts. Used brake cleaner and compressed air to clean the motor. I lubed both upper and lower bearing machine oil

Codifex Maximus · #70 01-22-2012, 12:16 AM

Nice work on the blower and cage. I've got an old seized 300D W123 blower that I might have to revisit...

steeleygreg · #71 01-22-2012, 02:16 AM

I took my blower fan motor to a generator rebuilding shop. We got into a general conversation about my blower and the owner told me that bushing for this bosch motor were only available from one supplier in the US and they are currently out of business. He mentioned that allot of blower motors similar mine come thru his shop and are used by not only MB, but BMW or Volvo. Also, it was stated that the bosch numbers on the housing points to a motor that is not available to the public market. So, this means I'm still investigating plan "B", that is to find an alternative, maybe using the bosch number stated earlier in this post.

charmalu · #72 01-22-2012, 11:11 AM

I looked up a blower motor for a 93 -97 Volve 850 as "Hammerwerfer" mentioned in Post#45. Fastlane shows the part# W0133-1815438, for $91.36

Charlie

Stevo · #73 01-22-2012, 01:12 PM

Nice work charlie.

Does anyone know if the Euro W123s use the same blower motor as the US 123s?

Stretch · #74 01-22-2012, 01:15 PM

Quote:

Originally Posted by Stevo

Nice work charlie.

Does anyone know if the Euro W123s use the same blower motor as the US 123s?

I think it has more to do with - with or without AC

Stevo · #75 01-22-2012, 02:35 PM

Quote:

Originally Posted by Army

I think it has more to do with - with or without AC

Wouldn't it be more a matter of climate control or manual heating system? I believe the motor is the same with or without AC if the car does not have climate control. I could be wrong on that tho.