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91 500SL, 93 600SL, 95 S600 coupe, 97 S320, 99 ML430, 2003 CL600, 94 SL600, 97 Kawasaki 1100 STX
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135 Posts
Discussion Starter #1
Hey guys,
As title says, I'm looking for bad rear shock from S500. No matter the condition as long as lower shock mount is there. It can be from 1992-1999 model as long as it's self leveling model.
I have 94 S500 and my lower rear shock mount is loose. There is some noise coming from that shock going over bumps. I'm thinking to at least try to adapt a universal polyurethane bushing in place of my loose OEM mount. OEM lower mount is built into shock. I'm thinking of drilling it out, make smooth surface inside, and press in polyurethane bushing with steel insert. I need one bad shock to experiment with.
If anyone has one to spare, please email with price.
Thanks
 

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1993 W140 500SEL Black/Black, 12014 Ford Fiesta ST Blk/Blk
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1,128 Posts
I have three,,, let me check.
 

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1989 190e 2.6 1993 500sel (sold) 1995 S500 coupe (sold) 1994 S500 blk/blk
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1,007 Posts
Here's a suggestion: Get a small tank of liquid nitrogen, zap the old bushing with it so that it will crumple (use a small hand pick to flick out the residue); this will save you the time and effort of drilling out the bushing and destroying the flanges. Clean up the bushing seat; then after putting the bushing hinge(steel insert) in the center and heating up the area so that it is warm, squeeze a tube of liquid polyurethane into the area and let it set.

I'd like to see someone try this.
 

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Registered
91 500SL, 93 600SL, 95 S600 coupe, 97 S320, 99 ML430, 2003 CL600, 94 SL600, 97 Kawasaki 1100 STX
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135 Posts
Discussion Starter #5
I should pick up one strut tomorrow to experiment. Luckily, the strut that I'm getting already has lower bushing drilled out already. I will update this tread with some pictures, measurements, replacement bushing source. I don't want to raise hopes up too much and hope it's going to work. Cannot drive with that banging coming from rear right side :mad:
 

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Registered
91 500SL, 93 600SL, 95 S600 coupe, 97 S320, 99 ML430, 2003 CL600, 94 SL600, 97 Kawasaki 1100 STX
Joined
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135 Posts
Discussion Starter #6
Here's a suggestion: Get a small tank of liquid nitrogen, zap the old bushing with it so that it will crumple (use a small hand pick to flick out the residue); this will save you the time and effort of drilling out the bushing and destroying the flanges. Clean up the bushing seat; then after putting the bushing hinge(steel insert) in the center and heating up the area so that it is warm, squeeze a tube of liquid polyurethane into the area and let it set.

I'd like to see someone try this.
Liquid nitrogen is a great idea to remove old broken bushing out saving flanges. I will try that method if replacement will hold. Thanks for suggestion.
 

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'98 E300, '10 GL350 Bluetec
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1,250 Posts
Suspension Restoration Parts in Modesto CA carries a huge stock of polyurethane bushings, and you can get a list of sizes from them to match one of their "standard" sizes if you can. They are at suspension>dot>com
 

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Registered
91 500SL, 93 600SL, 95 S600 coupe, 97 S320, 99 ML430, 2003 CL600, 94 SL600, 97 Kawasaki 1100 STX
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135 Posts
Discussion Starter #8
Hey guys, Sorry for not updating the thread.
I didn't received strut with drilled out bushing so couldn't experiment with replacement polyurethane bushing. In the end I ended up removing hydraulic struts and installing regular used shocks and springs from 92 300SE. Car actually rode softer and sat level and I really enjoyed the ride. As for pump, just looped steel lines that come from the front to have system pump fluid in closed loop. Used some rubber fuel lines. The car was sold and new owner never had problem with suspension. I saw the car for sale again and it looked as level as when I had it.
Total investment, if I remember right, was $100 for pair of used springs, $60 for pair of used shocks off same car 92 300SE, few dollars for couple of rubber fuel lines, labor done myself. I think it was much better option vs. repairing old strut. Car was 94 S500 with over 150000 miles so spheres needed to be replaced also. So for the price of one sphere I had whole suspesion replaced with trouble free version.

Hope this info helps someone.

All the best,

Victor
 
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