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Blower motor repair / evaporator cleaning 84 300D W123
Took out the blower motor in my 84 300D as it was acting up like the brushes were going bad. (Symptoms: won't start unless you give it full blast power far left button, then it will work OK at all speeds once rotating.) Took it to an alternator shop to have them put new brushes in it. Technically, it is not set up for user repair but I believe new brushes is do-able. Will let y'all know as soon as I get the word from the alternator repair guys.
Note on the removal of this item, though...in my car, one of the a/c hoses crosses underneath the motor from the firewall to the expansion valve. The only way to get the motor out is by removing that hose. Good thing my a/c is freon-free at the moment LOL. Nobody ever told me of that little issue. If you are working on your a/c in one of these cars, consider new brushes in your motor while you have your freon out. Once I got the motor out, it was apparent that the brushes were about gone. So it appears that the diagnosis was correct. While I had a bit of access to the evaporator, I decided to see how cruddy it was. Verdict: it was cruddy. I went to my local Toyota dealer and got their evaporator cleaner kit for $20, and sprayed the evaporator out with it. I used a soft toothbrush very lightly on it between sprays, up and down with the grain, those vanes are delicate. That kit will fill up the evap box with foam about four times. The foam then condenses and drips out of the condensation tube, really dirty. At first the toothbrush was black with crud but by the third foaming, it was pretty clean. I have posted a before and after video on youtube, each about 20 to 30 seconds. Since you can't see the evaporator directly, it's kind of like an automotive colonoscopy. Comparing the two videos, it looks like I took 20 years of crud off by using the cleaner. Not like brand new, but 75% or more of the way there. Close enough I hope. Now if the guys at the alternator shop have good luck with my blower motor, I'll be set. Here are the videos: Before 84 300D evaporator before cleaning - YouTube Not a very good video but in the beginning and end of the clip you can see the crud. After 84 300D evaporator after cleaning - YouTube A better video seeing how clean one can of the Toyota evap cleaner got it. There is also a video of my standup comedy in my channel if you need a laff. Jim |
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I've pulled blower motors from all versions of the 123, and have yet to need to disconnect the evaporator hose...
can you post a pic of your setup? thanks.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#3
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It's an a/c hose from the firewall to the expansion valve. Maybe I could pull it through the firewall some to get some slack, don't know. Since it has no freon in it now it was easier to unhook. I'll post a photo when I put it back together.
Jim |
#4
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is this a euro vehicle with aftermarket a/c installed?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#5
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I don't think so. I think it has factory a/c. It is a Canadian model, though. I forgot to take a photo before I put the kick panel back up
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I also pulled out my Blower Motor about 2 weeks ago with out and disconnection of Hose and there thankfully was no hoses in the way.
Mine is a 1984,300D Federal; see pic. Notice where the AC Hoses/Tubings are to the left of the Blower Motor.
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84 300D, 82 Volvo 244Gl Diesel Last edited by Diesel911; 12-07-2011 at 11:37 PM. |
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Quote:
Tks
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Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22 |
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no chance you'd drop it to get a photo for us is there?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#9
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Quote:
Jim |
#10
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Not until I have to take that blasted panel off again, sorry. This car started as a hobby but sometimes it turns into real work. LOL.
Jim |
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I live near DC but there should be a shop near you. Look up alternator rebuilding or starter rebuilding.
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#12
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Quote:
access the Evaporator(for no-rinse cleaning) and the Blower Motor (for brush replacement). Would you by chance have a few more photos to share (post)? Anyone out there? Thanks. |
#13
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Quote:
One of the earlier posters mentioned the kick panel. Is this where the blower is located?....behind the kick panel on the passenger side under the dash? I'm hoping that it's pretty straight forward in terms of removing, opening and cleaning the thing. But if anyone has any instructions, video, photos, etc., I sure would appreciate any info. Thanks! |
#14
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Quote:
On the Bosch Motors in other Threads the Brushes are in the Rear of the Motor. On the Seimens one the Brushes are up front and you need to pull off the Squirle Cage Fan to get at them.
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84 300D, 82 Volvo 244Gl Diesel |
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jimmypete posted this thread 3 years ago, don`t think he is around for pictures.
But I bet someone replaced the AC hoses on his car with something longer and after market. I have not come across a W123 with the AC Hoses running under the Blower. Diesel911 shows a good picture of the Blower and the location of the Expansion valve and hose. To remove the Blower, you need to remove the cover above the Passenger`s legs or below the Glove Box. Carefully remove the 3 plastic covers, and under them are 3 screws, then the panel will drop down. There are one each grey plastic screw on each side. Give it a 1/2 turn, then pull them out. Then wiggle the panel out. Unplug the electric plug, one Phillips screw and then with a 8mm socket, remove the 3 screws and the Blower will drop down and out. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
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