ML270 Ball Joint Replacement

[kebo57]

Hi got that tool finished so here goes
I haven't managed to master the typing in between pic's & also I can only load 5 pic's so I will have to do another reply.
I used a standard ball joint splitter for all joints including the bottom one see pic' 49
Then I was concerned about how to separate the hob from the drive shaft but as you can see pic 45 shows what is left when the hub is removed.
ie the wheel bearing stays within the hub all still sealed up nicely (bravo to MB)
The splines are the only thing that are stopping the hub from coming of after you have removed the hub nut (36mm), but they are a bit tight so I had to use a puller but not a lot of force see pic's 48.
Pic 42, 44, shows the set up for the removal of the old ball joint
ie drilling a circle of holes to relieve the interference fit so the ball joint will tap out easily thats as far a I can go till I upload some more pic's

Kevin

 

[kebo57]

Hi following on
Pic 43 shows the ball joint part out
I sliced the base (angle grinder) of this one before I started drilling but I didn't with the second one.
pic 46 shows fitting of the new ball joint there is 0.10mm interference fit & the wring nut will pull the ball joint in by hand easily with a C-spanner.
Pic 51 shows the splines in the back side of the hub bearing etc (bravo to MB)
pic 50 close up of the drive shaft
pic 52 the tool for the 300 Nm tightening of the wring nut

This is how I did it 2 ball joints £20.00 each.
no fancy ball joint puller £500.00

There might be better ways to do this job, so go easy on me

PS another pic of the reverse of my toothed socket to come.

Kevin

 

[kebo57]

Hi last pic

pic 45 36mm a/f same as the hub / drive shaft nut

When I did this job I started the engine without the hub sensor attached so I could mess with the stearing lock & managed to got all the brake warning lights on, but when I drove round to the front of my house they where go, thought I might have messed up there but they seem to be OK.

Kevin

 

[Blobcat]

If you wish to discuss this thread pls post replies here