NOTES-Transmission Linkage Bushings ... - Mercedes-Benz Forum
 
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post #1 of 10 (permalink) Old 05-13-2019, 12:51 PM Thread Starter
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Date registered: May 2004
Vehicle: 1983 380SL, ivory/dk brown, 44k miles, dual roller timing chain. 1986 560SL, red/white, 184K mile.
Location: Advance, NC
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NOTES-Transmission Linkage Bushings ...

I researched comments and suggestions presented here on Benzworld.org and got prepared to replace the two Transmission bushings on my 1986 560SL. Not that hard to do with the kind of information I got off this board.

My bushings were totally gone – must have worn, disintegrated, and fallen out.
Attached are images of the front and rear before I started.
Note there are no nylon bushings at either end of the rod.

Tools:
Bushing Tool
curved pick to remove old rusty clip
10mm box end wrenches – need two
small amount of grease
small wire cutters to make 2 small cuts in lip of bushings

Ordered these parts:
Bushing Tool - $34.99
https://www.ebay.com/itm/V8-Tools-90...72.m2749.l2649

Mercedes Automatic Transmission Bushing with Clip - $6.18 x2 = $12.36:
Nylon Bushing: 115 992 03 10
Clip: 000-994-41-60
https://www.ebay.com/itm/Mercedes-Au...72.m2749.l2649

Access:
Jack up Drivers side and place on Jack Stands.

Prep the 2 nylon bushings:
Make a very small cut in the lip on one side, and a second cut 180 degrees on same side.
This so the bushing will more easily slide go in the hole using the Bushing tool.
But, if you have gorilla strength hands you might not need to do this.
Then apply small amount of grease on the nylon bushing to make it even more easy to slide in.

Do the rear one first – easy:
Transmission Lever in Park.
Use curved pick to pop off the clip.
Pull transmission rod off lever.
Reach up in there with the Bushing Tool and insert the bushing.
Reinstall transmission rod.
Install new Clip with bare hands.

Do the front one last – only slightly more difficult:
Transmission Lever in Park.
Use curved pick tool to pop off the clip.
Pull transmission rod off lever.
Now we are going to remove the lever, but note that there is a plastic piece to the starter lockout attached to the lever – be careful and don’t break the plastic.
Use x2 10mm box end wrenches and remove bolt and nut on lever.
(Note loosening is not enough, its like the Steering Coupler - you must completely remove bolt)
With lever removed, use Bushing Tool and insert the bushing.
Carefully reinstall the lever making sure the starter lock switch is in its proper slot on the lever.
Insert and tighten the 10mm bolt.
Reinstall the transmission rod.
Inside cockpit, shift Transmission Lever to Low so the lever will be in a better position to install clip.
Install new Clip with bare hands.
Attached Thumbnails
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Name:	Shifter Bushing - front.jpg
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ID:	2512392   Click image for larger version

Name:	Shifter Bushing - rear.jpg
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ID:	2512394  
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Carl

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"You have chosen to drive a MERCEDES-BENZ, a car in whose construction and production we have taken great pains because we believe that quality is not a matter of chance." -- page 3, Owners Manual 380SL
Timing Chain, Subframe, wiring harness, Climate Control, Rust prevention, etc.

Last edited by cwmoser; 05-14-2019 at 04:34 AM.
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post #2 of 10 (permalink) Old 05-13-2019, 12:57 PM Thread Starter
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Date registered: May 2004
Vehicle: 1983 380SL, ivory/dk brown, 44k miles, dual roller timing chain. 1986 560SL, red/white, 184K mile.
Location: Advance, NC
Posts: 6,491
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Quoted: 1717 Post(s)
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Pick to remove old rusty clip:
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Carl

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"You have chosen to drive a MERCEDES-BENZ, a car in whose construction and production we have taken great pains because we believe that quality is not a matter of chance." -- page 3, Owners Manual 380SL
Timing Chain, Subframe, wiring harness, Climate Control, Rust prevention, etc.
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post #3 of 10 (permalink) Old 05-13-2019, 12:59 PM Thread Starter
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Date registered: May 2004
Vehicle: 1983 380SL, ivory/dk brown, 44k miles, dual roller timing chain. 1986 560SL, red/white, 184K mile.
Location: Advance, NC
Posts: 6,491
Mentioned: 23 Post(s)
Quoted: 1717 Post(s)
(Thread Starter)
Rear Bushing installed.
Pretty easy.
Do not adjust this nut.
Attached Thumbnails
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Name:	Rear1.jpg
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ID:	2512386  

Carl

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"You have chosen to drive a MERCEDES-BENZ, a car in whose construction and production we have taken great pains because we believe that quality is not a matter of chance." -- page 3, Owners Manual 380SL
Timing Chain, Subframe, wiring harness, Climate Control, Rust prevention, etc.
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post #4 of 10 (permalink) Old 05-13-2019, 01:07 PM Thread Starter
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Date registered: May 2004
Vehicle: 1983 380SL, ivory/dk brown, 44k miles, dual roller timing chain. 1986 560SL, red/white, 184K mile.
Location: Advance, NC
Posts: 6,491
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Quoted: 1717 Post(s)
(Thread Starter)
Front Bushing installed with callouts.
Just a little more difficult.
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Carl

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"You have chosen to drive a MERCEDES-BENZ, a car in whose construction and production we have taken great pains because we believe that quality is not a matter of chance." -- page 3, Owners Manual 380SL
Timing Chain, Subframe, wiring harness, Climate Control, Rust prevention, etc.
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post #5 of 10 (permalink) Old 05-14-2019, 01:08 AM
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Date registered: May 2007
Vehicle: 2005 200SLK (UK), 1974 450SL (US)
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Thanks for the writeup - great stuff!

I love it when members pictures are photobombed by their dog - more please!

Andy
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post #6 of 10 (permalink) Old 05-14-2019, 04:27 AM Thread Starter
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Date registered: May 2004
Vehicle: 1983 380SL, ivory/dk brown, 44k miles, dual roller timing chain. 1986 560SL, red/white, 184K mile.
Location: Advance, NC
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Quoted: 1717 Post(s)
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Quote:
Originally Posted by andya View Post
Thanks for the writeup - great stuff!

I love it when members pictures are photobombed by their dog - more please!

Andy
Sometimes Cue, the dog, is a real pest.
He'll crawl under the car while I'm working and want to lick me on my face while I'm flat on my back and can't shoo him away because I have my hands on a part or tool. He's a good boy though.

Carl

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"You have chosen to drive a MERCEDES-BENZ, a car in whose construction and production we have taken great pains because we believe that quality is not a matter of chance." -- page 3, Owners Manual 380SL
Timing Chain, Subframe, wiring harness, Climate Control, Rust prevention, etc.
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post #7 of 10 (permalink) Old 05-14-2019, 08:13 AM
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I like the idea of nipping the bushings to make them go in easier but won't it shorten their lifespan if they start to tear at those points?

Asking because this is a job I need to do also.

Andy
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post #8 of 10 (permalink) Old 05-14-2019, 08:38 PM
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Nice writeup, Carl.
Just a question about the bushings: If the OEM and replacement nylon bushings tend to wear out, why not use metal bushings that wouldn't wear as fast?
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post #9 of 10 (permalink) Old 05-15-2019, 03:00 AM
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Carl, maybe it was easy for you... but saying insert the bushing using the insertion tool, gives the impression that insertion is easy.

When I replaced my bushings... using the same bushing insertion tool... the fight I had with getting the bushing to slide into the hole on the lever was more akin to "The Thrilla in Manila" then a simple squeeze of the insertion tool handles. I fought with those bushings for well over an hour and very nearly said "F this". It was only after I used a clamp to hold the handles of the insertion tool tightly closed and then by rotating the tool back and forth in a parallel direction to the hole it is intended to occupy, did the bushing finally slip past its own lip and seat into the hole. This is not a pleasant job by any stretch of imagination.


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post #10 of 10 (permalink) Old 05-15-2019, 04:47 AM Thread Starter
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Date registered: May 2004
Vehicle: 1983 380SL, ivory/dk brown, 44k miles, dual roller timing chain. 1986 560SL, red/white, 184K mile.
Location: Advance, NC
Posts: 6,491
Mentioned: 23 Post(s)
Quoted: 1717 Post(s)
(Thread Starter)
Quote:
Originally Posted by Jyuma View Post
Carl, maybe it was easy for you... but saying insert the bushing using the insertion tool, gives the impression that insertion is easy.

When I replaced my bushings... using the same bushing insertion tool... the fight I had with getting the bushing to slide into the hole on the lever was more akin to "The Thrilla in Manila" then a simple squeeze of the insertion tool handles. I fought with those bushings for well over an hour and very nearly said "F this". It was only after I used a clamp to hold the handles of the insertion tool tightly closed and then by rotating the tool back and forth in a parallel direction to the hole it is intended to occupy, did the bushing finally slip past its own lip and seat into the hole. This is not a pleasant job by any stretch of imagination.

https://www.youtube.com/watch?v=S96u0YsJWdg
I couldn't get those bushing to go into the hole, even using the tool.
I pressed with all the strength in my hands and it just was not going in.
I read a note from someone here on the forum to make a tiny nip on the
lip of the bushing, and when I did they would go in with a hard press and slight
wiggling of the tool. I also did grease the bushing too.

I wouldn't think the small nip is going to significantly shorten the life of
the bushing - they are going to deteriorate over time anyway. My 30+ year
old 560SL had not signs of the old factory bushing anyway. Previous poster
wondered why we don't have "metal" bushings for longer life - good point.

Carl

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"You have chosen to drive a MERCEDES-BENZ, a car in whose construction and production we have taken great pains because we believe that quality is not a matter of chance." -- page 3, Owners Manual 380SL
Timing Chain, Subframe, wiring harness, Climate Control, Rust prevention, etc.
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