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Brake booster removal
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Topic: Brake booster removal (Read 6492 times)
Naj ✝︎
Associate Member
Platinum
United Kingdom, Surrey, New Malden
Posts: 3163
Brake booster removal
«
on:
January 04, 2004, 05:43:50 »
How does one disconnect the yoke of the brake booster from the pedal assembly?
On the 230sl it seems the hole in the alli mounting bracket is too small to remove the (concentric?) bolt from.
Anybody done this job?
naj
'Kloines Scheisserle'
65 230SL
68 280SL
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68 280SL
rwmastel
Full Member
Platinum
USA, OH, Canal Winchester
Posts: 4621
Pagoda SL Group: 20+ years and going strong!
Re: Brake booster removal
«
Reply #1 on:
January 04, 2004, 12:43:40 »
Are you talking about the bolt on the "fork" that comes out the rear of the booster?
Download Attachment:
Booster Bolt.jpg
84.32 KB
On my car, the nut for offset bolt is on the driver's side and the large bolt head is on the passenger side. It should just come out the passanger side like a normal bolt.
Rodd
Powell, Ohio, USA
1966 230SL, Euro, Auto, Leather, both tops
1994 E420
«
Last Edit: January 04, 2004, 12:44:02 by rwmastel
»
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Rodd
Did you search the forum before asking?
2017 C43 AMG
2006 Wrangler Rubicon
1966 230SL auto "Italian"
Naj ✝︎
Associate Member
Platinum
United Kingdom, Surrey, New Malden
Posts: 3163
Re: Brake booster removal
«
Reply #2 on:
January 04, 2004, 12:58:39 »
Thanks Rod.
On the 230sl, you cannot see the push rod as that alli mounting bracket is quite different and only has a peep hole about 1" diameter.
I was going by the picture in a parts book but today I found that the booster does NOT have a yoke on the pedal side either but just another push rod. So it does come off after you undo the 4 nuts holding the servo to the mounting bracket. Only, on the right hand drive car the inlet manifold is in the way - but thats another story!!
naj
'Kloines Scheisserle'
65 230SL
68 280SL
Logged
68 280SL
rwmastel
Full Member
Platinum
USA, OH, Canal Winchester
Posts: 4621
Pagoda SL Group: 20+ years and going strong!
Re: Brake booster removal
«
Reply #3 on:
January 04, 2004, 14:36:48 »
NAJ,
But I
do
have a 230SL. Is my bracket incorrect?
Rodd
Powell, Ohio, USA
1966 230SL, Euro, Auto, Leather, both tops
1994 E420
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Rodd
Did you search the forum before asking?
2017 C43 AMG
2006 Wrangler Rubicon
1966 230SL auto "Italian"
hands_aus
Full Member
Platinum
Australia, Queensland, Brisbane
Posts: 1543
Re: Brake booster removal
«
Reply #4 on:
January 04, 2004, 14:46:32 »
they are probably different because of the lhd and rhd configurations
Bob (Brisbane,Australia)
early 250 SL, RHD
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Bob Smith (Brisbane,Australia)
RHD,1967 early 250 SL #114, auto, ps , 717,717
best of the best
jeffc280sl
Guest
Re: Brake booster removal
«
Reply #5 on:
January 04, 2004, 15:46:43 »
For those of you installing a replacement brake booster have a look at Rodd's photo. The bracket on my replacement booster was designed a little differently than the prior one. The old one used a bolt with a collar which prevented over tighning of the bracket and brake petal arm. There needs to be a slight amount of play in this connection for the booster to maintain a vacuum seal while the brake petal is pushed down. If not the booster seal will fail and you will loose the vacuum assist. The new booster required a bushing which served the same purpose.
Jeff C.
1970 280SL 4-speed
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Naj ✝︎
Associate Member
Platinum
United Kingdom, Surrey, New Malden
Posts: 3163
Re: Brake booster removal
«
Reply #6 on:
January 05, 2004, 05:28:21 »
Hi, Rod,
I think yours is the later model with a yoke on the booster as shown in 230sl parts book.
Mine is a '65 car. The alli mounting bracket is also much smaller and the booster operating lever is a different shape.
Download Attachment:
Booster.JPG
46.28 KB
Note the cup shaped operating lever for the push rod.
Download Attachment:
Boostermtg.JPG
55.25 KB
Download Attachment:
cylside.JPG
44.33 KB
naj
«
Last Edit: January 05, 2004, 09:26:41 by naj
»
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68 280SL
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Brake booster removal