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#1
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97 SL320 driveshaft center u joint replacable?
I've looked on Peach Parts and they don't show a center drive shaft universal joint. The caps are staked on and the inner part of the yokes looks to thick for a clip on a replacement joint bearing cap. Does the aftermarket offer u joints?
When flexing the joint on my spare drive shaft, I can feel a notch. This notch wear occurs because there is little flexing of this joint. As a side note, this notch wear can be a source of vibration if the drive shaft has been removed and installed in a slightly different position or in another car. Thanks |
#2
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it takes a three prong approach to fix the issue.
there are front and rear flex disks...and a center driveshaft bearing.. i do a lot of my own work, but i passed on this project... you really need a lift and may have to remove part of the exhaust system.
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k 1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC] |
#3
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Thanks, but I'm more interested in finding a source for replacement u joints. The originals are externally staked in making proper field restaking with common shop tools difficult. ( You have no way of knowing but, I can and have fixed every system on many cars over the years between owning a shop and my own projects. Engine - trans- rear end rebuilds, Body / paint, even some electronic component level board repairs. )
GM used to inject plastic to lock the joints and replacement joints came with internal clips. The inner portion of the yokes were machined flat to provide a bearing surface for the new clips. Mercedes yokes are stepped leaving little room for clips. With all the cars out there you'd think someone came up with a work around. If nothing pans out, it will be time to sift through joint spec catalogs to find a match. |
#4
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Quote:
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k 1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC] |
#5
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You original 2 points were:
To cure a vibration, the front and rear flex discs must be replaced along with the center bearing. A drive shaft removal is difficult for a DIY especially without a rack, partially because the exhaust needs to be removed. My points: ( without malice ) While inspecting my _spare_ drive shaft I noted that the center universal joint didn't flex freely and felt notchy. I then went on to state that the notch _could_ cause vibration. The center universal joint caps are retained by staking the yoke, something that is difficult using normal shop tools. I then asked if an aftermarket u joint was available. In a second post I addressed that drive shaft removal wasn't an issue and gave an example of how GM used to lock caps and the field repair method. ( Again, without malice ) |
#6
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Maybe I am confused... I had this problem in my 300ce.... i was certain it was a bearing problem...but when they told me the exhaust had to come out , i went ahead and got the flex discs..... the front was about to break apart... the rear was fine.... that's my experience.... the indy charged 400... plus i gave him the parts.... i thought it was a fair deal...
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k 1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC] |
#7
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Everything I've read on this has the owner taking it to a driveshaft specialist if they want to replace the u-joint.
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Prost! |
#8
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The U joint is staked in place and requires grinding and restaking to renew. Very hard in field, Some members have replaced it with some ford application U joint but its a very hard job. Best left to a driveline shop that can repair truck shafts.
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2012 BMW X5 (Beef + Granite suspension model) 1995 E300D - The original humming machine (consumed by Flood 2017) 2000 E320 - The evolution (consumed by flood 2017) |
#9
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+1 Drop the shaft and take it to the driveshaft shop |
#10
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Here's some discussion that might be helpful
http://www.peachparts.com/shopforum/diesel-discussion/124491-can-you-replace-universal-joints.html
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Current Stable
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#11
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Lee, no problem, you car is just different than mine.
Mach4 thanks for the link, I'll start looking at u joint books. I know the physics of making it happen I was hoping there was a resaking tool that keeps things centered. |
#12
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i think you ought to re-read the posts...every one is trying to help you... no universals on our vintage mbz=s a shop will have to press the old center bearing out... and put a new one in.... don't fight it, man
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k 1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC] |
#13
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The statement has been made more than once that there are no universal joints (cross type joints) in the drive lines that are the subject of this thread.
The statement has also been made that there is a center bearing in the drive lines in question. If there is(are) no universal joint(s) in the drive line it must be a one-piece drive line equipped only with flex discs at each end. If it is a one-piece drive line why does it have a center bearing? |
#14
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i am not explaining it right... just look the part up ...it will be very clearing.
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k 1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC] |
#15
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Quote:
typical MBz driveshaft. The U joint allows the shaft to tilt downwards into the diff unit.
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2012 BMW X5 (Beef + Granite suspension model) 1995 E300D - The original humming machine (consumed by Flood 2017) 2000 E320 - The evolution (consumed by flood 2017) |
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