W126 LCA bushing installing in w123 LCA - Page 4 - PeachParts Mercedes-Benz Forum

my123ca · #46 11-22-2015, 01:18 PM

You will need the correct tool to install the bushings if you are going to use the 126 lemforder ones. The caps were really tight and if you force them in, you will destroy them. I had to buy another set, a different brand. Those caps went in ok. The bushings are not a problem.

The original LCA bushings on the 123 were quite beefy also and they were just swaged on one side. I just had them for about two months only so i cant tell if they are going to last.

JHZR2 · #47 11-22-2015, 01:23 PM

So what is that tool?? SE I thought the point of the 126 ones was that they were easier to install by design, and beefier too...

vstech · #48 11-22-2015, 02:16 PM

Quote:

Originally Posted by JHZR2

Any updates on this?

I'm sort of considering a DIY on my 300cd rather than going to a shop. Then I can take time, apply rustproofing oil, paint the CAs, etc.

The 126 bushing is very finicky to install. I'm REALLY close to having a tool made for the job. The prototype was straight walled and wouldn't fully support the puck.

vstech · #49 11-22-2015, 02:17 PM

Quote:

Originally Posted by JHZR2

So what is that tool?? SE I thought the point of the 126 ones was that they were easier to install by design, and beefier too...

The 123 design is far simpler to install. The 126 design is far stronger.

JHZR2 · #50 11-22-2015, 04:45 PM

I'll wait for the 126 tool to rent both.

Is there a thread on that bush install and making the tool??

my123ca · #51 11-22-2015, 08:31 PM

Quote:

Originally Posted by JHZR2

So what is that tool?? SE I thought the point of the 126 ones was that they were easier to install by design, and beefier too...

It is listed in the FSM, 1265890143. I tried all kinds of tools but nothing worked so i just brought the LCA to an independent mercedes shop. Attached are photos of the LCA bushings, damaged cap and the replacement cap that i used.

Stretch · #52 11-23-2015, 04:37 AM

Check through chapter 33-520 in the FSM - it shows what to do for the "two part" and "three part" bearing

jabstick420 · #53 11-23-2015, 11:39 AM

Just did this job a few months ago.

Used the ktc w124/126 lower control arm bushing press
Kit. http://shop.ktcautotools.com/products/mercedes-w124-w126-lower-control-arm-bushing-press-tool

Installed the three piece heavy duty bushing on my 123

The hardest part is removing the old bushing.

The press makes installation straightforward

Diesel911 · #54 11-23-2015, 02:12 PM

Quote:

Originally Posted by JHZR2

I'll wait for the 126 tool to rent both.

Is there a thread on that bush install and making the tool??

If there is a thread or a WIKI it would be for a W126

Repair Links
Fast navigation http://www.peachparts.com/shopforum/diy-links-parts-category/146034-fast-navigation-do-yourself-links.html

JHZR2 · #55 06-17-2023, 11:39 PM

I posted on this thread a few times years ago. I had a shop do my w123 LCA, but today I started on a w126 LCA three piece. So I figured I’d give a bit more info here.

I cut out the old ones and pressed in the new ones with a tool. Getting the old ones out is the hardest part.

The FSM says to use a counterbore bit to cut through. I didn’t have one that big, but will be buying one because cruising through these things any other way is for the birds.

Eventually with enough cutting and beating they come out.

I used this tool:

It worked good but had some weaknesses.

Because of the flats on the bushing, it does bulge up but goes in fine. It did have water based lube.

It pressed in fine, but the tool’s caps were stuck on. The tool metal is extremely soft and you need to beat the LCA out of the tool ends.

In the end it’s all good!