Author Topic: My 6.9's  (Read 20410 times)

rumb

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Re: My 6.9's
« Reply #195 on: 25 July 2019, 11:38 AM »
Installing the stub axle is one tough job! There are 5 bearings, 4 races and 3 seals. Everything in this rear axle assy it tough to get apart and tough to get together. Make several tools and bought several pullers including a 10 ton hydraulic one to get the big bearing out. The crush washer is very tough, a 5' breaker bar did nothing so I used the big impact wrench to slowly tighten with checking end play about 15 times.
'68 250S, '77 6.9 euro, '91 300SE, '98 SL500 '14 CLS550

rumb

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Re: My 6.9's
« Reply #196 on: 26 July 2019, 11:19 AM »
Installed new link with home made alignment jig I made before I took the old ones off. There is one for each side to get the angle correct when you press the big pin in.

Fill cavity with grease and tighten nut to correct torque, install grease cap. 
'68 250S, '77 6.9 euro, '91 300SE, '98 SL500 '14 CLS550

G Johnson

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Re: My 6.9's
« Reply #197 on: 15 August 2019, 11:30 AM »
Rumb
This is a very helpful post, I need to do this to my C126 can I ask how you removed the gold colour shackle/link
from the trailing arm?
The alignment jig and pulling it in with threaded bar and washers is clear I just wonder how best to remove it
Thank you for any help and tips
Graeme Johnson

rumb

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Re: My 6.9's
« Reply #198 on: 15 August 2019, 02:13 PM »
I used a small 2 jaw puller. the hook part has to be small to fit in behind the link.  I put a C clamp on to keep it from slipping off.

I think it was this one - check the sizes offered.
https://www.amazon.com/gp/product/B071DF2ZB4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

There are two alignment guides, one for each side. Make them before you pull the links off or you wont know how to install them. Use fine thread all-thread. I used coarse thread and completely pulled the threads off it. It take a lot of pressure to get them back on.

If you are replacing all the bearing, be warned that they are all stuborn. This rear axle assembly has been the hardest thing to do in 50 years of wrenching. PM me if you want any additional information. As mentioned I had several press tools made and had to purchase a 10 ton hydraulic puller to get some of it apart. I would rent them to you if needed.
'68 250S, '77 6.9 euro, '91 300SE, '98 SL500 '14 CLS550

G Johnson

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Re: My 6.9's
« Reply #199 on: Yesterday at 03:34 AM »
Rumb
Thank you for the reply that makes sense
I would love to do mine properly and brake it down into individual parts
to blast and powder coat like you have but I know I would not be able
to re assemble the rear hub and bearing carrier.
I am just going to remove the trailing arm and paint strip wire brush and
sand with the parts assembled then paint with por 15
Thanks again Graeme Johnson (UK)