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#1
03-01-2007, 08:58 PM
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W123 *slight* rear brake drag
Need some advice - read through the archives and didn't see anything on the specific situation....Im a brake newbie.
Finishing rear axle job (both axle shafts) and running the car on jack stands. Driver's rear axle doesn't turn when putting the car into drive, but with a little nudge it will start moving, slowly and obviously restricted. It makes no strange sounds, I think the axle itself is properly installed. When that car is off, I can rotate the wheel hub with my hands. At first I suspected the e brake, but I loosened the cables via the 'star' with no improvement. Supposedly brakes were recently done on the car by the PO at a reputable shop. Is this amount of drag a problem? If so, how can I correct it? thanks, dd
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------------------------------- '85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit) '82 300D, 'Tex', 228k body / 170k engine ... summer car '83 300TD Cali Wagon 210k, wife's car 
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#2
03-01-2007, 08:59 PM
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doesnt the car need to be in neutral to spin the wheels freely?
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82' 300SD
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#3
03-01-2007, 09:32 PM
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Quote:
this sounds normal to me. the power takes the path of least resistance. i would expect both wheels to turn only if it is lsd. if you can turn the hub easily with your hands that sounds like the normal amount of brake drag. tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#4
03-01-2007, 09:38 PM
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Quote:
this makes sense, if i e-brake the passenger rear only (adjusting star to do this), then the drivers side in question spins freely. dd
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------------------------------- '85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit) '82 300D, 'Tex', 228k body / 170k engine ... summer car '83 300TD Cali Wagon 210k, wife's car
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#5
03-02-2007, 12:14 PM
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Its all in the differential
When on jack stands,both wheels off the ground , the differential has some resistance. ( thick oil when cold ,friction from the gears ) . What your seeing is normal, If you rotate one wheel with the trans in neutral, one wheel will spin one way and the other will spin opposite,. This is all in the gears, pinion gear rotating the ring gear and side spyder gears. Get stuck in snow or mud and all that spins is the rear pass. side.
 A brake pad may be touching or a e- brake may be slightly dragging, bottom line is if you can spin it freely or with slight resistance your OK.
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'83 240D 264k on 100% biodiesel/ 31mpg 83 300D 217K the $800 gem '82 300D 267K the new WVO project car finished and driving for free International tractor B275 on B100 Ford 555 backhoe on B100 Sargent 25 ton Rough Terrain crane on B50  
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#6
03-02-2007, 01:25 PM
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Just make sure both side act the same way. My euro all the brakes drag a bit, the MBC pushrod is adjusted just to the point of contact. I dont know if its enough to cause drag but the thing stops on a dime.
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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