Man.... I really could have used this last month!

Thank you for doing a detailed write up. We need more stuff like this in the DIY area.

Good job!

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AJ

1985 300D (SOLD)

Hey TC_300SD - Is your clunking around 20 - 25 mph while taking your foot of the accelerator pedal like mine? Can't figure this one out, may need to go into indy since i'm recovering from rotator cuff surgery and can't use right arm.

Anyone else have a guess - sorry to hijack

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1985 300D, 250k
1980 300SD, 180K

Yes, defintely only at lower speeds, have to get it in the air to check it out, but thought this may be a solution.

Let me know if you get it into your indy and what he says about it.

Tim

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1983 300SD - 190K
1984 300TD Euro 158K (CWC candidate )

I just got all my parts to replace the flex plates & carrier bearing.

Two questions.
1. I got a driveshaft boot. Where exactly does that get placed ?

2. The flex plates came with allen head bolts instead of hex heads. See
any problems with that?

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1984 MB 300SD Turbo

has anyone done this on a 123 coupe, my sleeve nut is inside the tunnel over the welded support. i really dont know how wrenches this big will fit on an angle in there.

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It'll fit. There isn't much room and you won't be able to turn it a lot, but the good news is you'll only need to turn it a little.

Scott

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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)

Did the new bearing go on the shaft easily?

Yes. I was able to slide mine on with my hands after lubing it with dishwashing liquid.

Scott

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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)

I helped a member replace his bearing a while back and it required driving on the shaft. Wasn't fun... ended up taking it to a shop and having it pressed in place.

I have a new bearing for my wagon in hand but have putting the job off due to past experience. We'll see how it goes.

Thanks.

whatever i did the sleeve nut wouldnt come loose, i broke a 11mm wrench trying to wedge the driveshaft and then it wouldnt loosen with a 12" adjustable wrench on the inside nut and huge channel locks on the outside.
so i gave up on the sleeve nut, i was just dropping the diff and i thought i would need to loosen it but i didnt.

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I'm a little confused over the orientation of the bearing support ... you said the side with the little "ledge" that the bearing backs into should face toward the rear of the car, which makes sense, but mine was facing the other way when I took it off the driveshaft. And the picture in the manual looks like mine did. In this picture, which direction should this side of the support face?

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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)

Re-read POST # 3 & see picture # 3.


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1984 MB 300SD Turbo

I have the exact same issue. It's at the indy now, I'll let you know what he says

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1987 300TD wagon 193,000 miles

Step # 3 was to remove the flex disc and compress the driveshaft ... I'm assuming you meant step 12, which I read carefully but just want to clarify if I'm reading it right.
In my AllData manual, it states "Install rubber mount in such a manner that inner V-fold points toward universal joint." This is the diagram ... I have marked in red the "shoulder" that the bearing sits up against, and the direction that is front of the car. It looks like that is opposite of what is described/pictured in step 12 ... if I'm reading that step right, it says the shoulder should face the rear of the car. I'm not saying the DIY is wrong ... more likely, I'm reading something wrong, so I'm looking for clarification. I really don't want to do this wrong and have to take the driveshaft apart again. Ever.

Attached Thumbnails

 

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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)

Sorry. It was POST #3.


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1984 MB 300SD Turbo