Making replacement throttle pivot bushings from polyurethane and oil impregnated bronze. Have tested many prototypes and they work great! Have a few people running them in their cars and they have nice smooth throttle movement.

Shoot me a message or Etsy link is below

https://www.etsy.com/DMERCINC/listing/926478734/mercedes-w123-polyurethane-throttle?utm_source=Copy&utm_medium=ListingManager&utm_campaign=Share&utm_term=so.lmsm&share_time=16 10633206210

i saw this on facebook....they look pretty decent. welcome to the forum

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0o==o0

James 4:8

"...let us put aside the blindness of mind of those who can conceive of nothing higher than what is known through the senses"
-Saint Gregory Palamas, ---Discourse on the Holy Transfiguration of Our Lord God and Savior Jesus Christ


Centrally located in North East Central Pa.

Very nice indeed and it fills an apparent void in the old German steel supply line

How does the material being used hold up long term? Is the longevity the same as stock? Longer? Shorter? OE MB is notoriously hard to emulate. Any plans for a different material? I see these on eBay in solid aluminum.

Good initiative !!

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1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD

So they should be comparable service life to the originals, have a few months into torture testing them, hard to say whether they will outlast the OE ones since they hold up for quite a few years. I am playing with different material types as we speak, making some with Delrin core, casting a few, 3D printing some with TPU and more!

As for the aluminum ones, Hector Correa makes those and he is a good dude, but price point is a smidge steep IMO and I worry about deviating from the MB originals too far, they had reasons for going with rubber and plastic for that bushing (at least I think they did)

Sorry for late reply, busy busy!

They might be sourcing the part from a mfr in Taiwan and marking them up because the aluminum ones on eBay are about $35. Their design is also made in a way that it can replace earlier bushings.

I've tried to understand why MB would use plastics for this part. The bushing itself just fills the space and only turns as part of the assembly. Nothing actually wears out, the bushing just disintegrates. I'm not sure when CNC was viable for mass production. In the early 80's a chunk of aluminum that shape could have been cost prohibitive.

If the one on mine was the original it lasted 35 years before I replaced it 2 years ago.

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84 300D, 82 Volvo 244Gl Diesel

That's the standard lifespan for this part and many other OE parts from the era. Lots of copies of some MB plastics and most all MB rubber but no one can duplicate them to the point of matching the longevity. On top of that they lasted decades while being totally neglected.

I suspect MB mainly used the softer material to kill as much NVH coming through the throttle linkage as possible.

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'82 300CD
"Pearl", the very first turbo diesel 123 coupe
Totaled 11/23/18, rebuild in progress.
'85 300TD, "Artemis".
'78 300D euro, "Ol' Red", mostly retired.
'85 300D, "Gandalf".