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  #1  
Old 09-09-2010, 04:14 PM
zeke's Avatar
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Join Date: Sep 2007
Location: The Alamo City, TEXAS
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w123 rear wiper crankshaft teeth

My motor assembly works fine, but the teeth that align with the teeth in the wiper arm are slipping on the return sweep.

Anyone know of a fix that doesn't involve replacing the entire assembly?

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Current Mercedes
1979 maple yellow 240D 4-speed


Gone and fondly remembered:
1980 orient red 240D 4-speed

Gone and NOT fondly remembered:
1982 Chna Blue 300TD

Other car in the stable:
2013 VW Jetta Sportwagen TDI / 6-speed MT
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  #2  
Old 09-09-2010, 05:44 PM
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See if the gear can be replaced. Lots of metal & plastic gears available if you know what the specs are.
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85SD 240K & stopped counting getting paint. 84SD 180,000. Probably up for sale in the fall 2020. 85TD beginning to repair to DD status.
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  #3  
Old 09-09-2010, 06:15 PM
zeke's Avatar
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Location: The Alamo City, TEXAS
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Well it's the crankshaft that has little teeth etched into it...Doubt MB would sell the shaft alone the assembly is probably the minimum unit....
:/
__________________

Current Mercedes
1979 maple yellow 240D 4-speed


Gone and fondly remembered:
1980 orient red 240D 4-speed

Gone and NOT fondly remembered:
1982 Chna Blue 300TD

Other car in the stable:
2013 VW Jetta Sportwagen TDI / 6-speed MT
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  #4  
Old 09-09-2010, 10:46 PM
markho's Avatar
Down the Shore
 
Join Date: Sep 2009
Location: Ventnor, NJ
Posts: 297
yes i have addressed this issue with my own. THe problem is that the case is held together with pins rather than screws. When the gear is under load the case opens up a bit and the main gear and the worm gear from the motor begin to skip and grind on each other. What I did was remove the pins and thread the holes where the pins were, and then buy machine screws that fit. Screw the case down and the gears' teeth stay in contact with each other. It solved my problem.

this is a good thread for wiper issues:
I joined the "Cheap Wagon Club" officially today. 1981 300TD
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1985 300TD Turbo Diesel Wagon
273,000 miles
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  #5  
Old 09-10-2010, 10:30 AM
zeke's Avatar
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Join Date: Sep 2007
Location: The Alamo City, TEXAS
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Brilliant!!!

Worked perfectly..much quieter operation, too

Thanks so much!!
__________________

Current Mercedes
1979 maple yellow 240D 4-speed


Gone and fondly remembered:
1980 orient red 240D 4-speed

Gone and NOT fondly remembered:
1982 Chna Blue 300TD

Other car in the stable:
2013 VW Jetta Sportwagen TDI / 6-speed MT
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  #6  
Old 09-10-2010, 04:55 PM
Stevo's Avatar
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Join Date: Apr 2002
Location: NW WA
Posts: 6,296
Quote:
Originally Posted by markho View Post
yes i have addressed this issue with my own. THe problem is that the case is held together with pins rather than screws. When the gear is under load the case opens up a bit and the main gear and the worm gear from the motor begin to skip and grind on each other. What I did was remove the pins and thread the holes where the pins were, and then buy machine screws that fit. Screw the case down and the gears' teeth stay in contact with each other. It solved my problem.

this is a good thread for wiper issues:
I joined the "Cheap Wagon Club" officially today. 1981 300TD
Handy too know, thanks, Im collecting TD specific tidbits since acquiring my new "love", I sorta miss having a trunk sometimes but the 300 TD is sweet.

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"
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