Author Topic: Brake hoses  (Read 7894 times)

magicman

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Brake hoses
« on: September 12, 2013, 00:04:32 »
My mechanic insists there is only one rear flex brake hose on my 1968 250sl?  I thought there were two rear hoses?

Benz Dr.

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Re: Brake hoses
« Reply #1 on: September 12, 2013, 02:21:01 »
Get a another  mechanic. There are two different brakes hoses.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

magicman

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Re: Brake hoses
« Reply #2 on: September 12, 2013, 02:48:52 »
That's what I thought. I have confidence in the lead mechanic but he didn't do the brake work. Can they call you for assistance in locating the other brake hose?

ja17

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Re: Brake hoses
« Reply #3 on: September 12, 2013, 04:11:46 »
Its not hard to find.  Just follow the metal brake lines.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

wwheeler

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Re: Brake hoses
« Reply #4 on: September 12, 2013, 05:04:16 »
I would do what Dr. Benz says, get a new mechanic. Most cars with solid rear axles have only one rear brake hose. But this is a Mercedes with a split rear axle. Different ball game.
Wallace
Texas
'68 280SE W111 coupe
'60 220SE W128 coupe
'70 Plymouth Roadrunner 440+6

jameshoward

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Re: Brake hoses
« Reply #5 on: September 12, 2013, 05:15:59 »
You don't say how many wheels the car has.

If 4, there should be two hoses.

But I'd also suggest Dan's advice be followed...
James Howard
1966 LHD 230SL

magicman

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Re: Brake hoses
« Reply #6 on: September 12, 2013, 13:57:08 »
We resolved the missing brake hose issue! As I mentioned, the lead mechanic didn't do the work & apparently the mechanic that did the work thought only one should be replaced. Not sure why he insisted there was only one though ??? The good new is that the car will be back on the road tonight for the first time in a couple months. I also had the brake booster rebuilt by a local rebuilder & replaced the tie rods, inner rack & steering dampener. All of those parts were original, including the brake hoses, so after 45+ years they were due.  Thanks again for your advice & assistance.

Jonny B

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Re: Brake hoses
« Reply #7 on: September 12, 2013, 17:53:49 »
Can you post some photos of the brake booster after the rebuild. New boosters are being made out of unaffordium, so having some options on rebuild is a good thing.
Jonny B
1967 250 SL Auto, DB 568
1970 280 SL Auto, DB 904
1966 Morris Mini Minor

garymand

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Re: Brake hoses
« Reply #8 on: September 12, 2013, 19:34:11 »
Replace all your rubber brake hoses. 2 in front and one more in back.  They absorb somethng out of the brake fluid and swell closed. If one did it, the others will soon follow resulting uneven braking.  I've been getting my 250 road worthy, one rear was totally blocked, the other worked only one-way.  I replaced all 4 calipers with rebuilts, they were only 65 to 85 $ each.  The rotors are cheap too.  Something if you do yourself, it costs $300 in parts -rotors.  The rotors are ~$150 for all 4.  Under $500 for new brakes.  
« Last Edit: September 12, 2013, 20:59:35 by garymand »
Gary
Early 250SL German version owned since 71, C320, R350, 89 Porsche 944 Turbo S

Cees Klumper

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Re: Brake hoses
« Reply #9 on: September 12, 2013, 19:52:42 »
X2 on the hoses. Replaced mine after one was so restricted it would only work one-way; you don't see it from the outside but I believe most hoses have a date mark on them, so only thing left is to check that against a normal useful life. And I replaced my calipers this summer, made a big improvement in the braking characteristics (which I never considered as poor to begin with).
Cees Klumper
1969 Mercedes 280 SL automatic
1968 Ford Mustang 302 V8
1961 Alfa Romeo Giulietta Sprint Coupe 1600
1962 FIAT 1500S OSCA convertible
1972 Lancia Fulvia Coupe 1.3
1983 Porsche 944 2.5
1990 Ford Bronco II

magicman

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Re: Brake hoses
« Reply #10 on: September 13, 2013, 02:32:56 »
Both rear brake hoses were replaced & I had the front hoses replaced just a couple of years ago. Calipers & rotors are in good shape.  JonnyB -as far as the brake booster is concerned, I had the internals rebuilt but the actual brake booster housing is original. The shop repainted it, not a perfect job but it will suffice for now.

Jonny B

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Re: Brake hoses
« Reply #11 on: September 13, 2013, 15:19:01 »
How did they take it apart?
Jonny B
1967 250 SL Auto, DB 568
1970 280 SL Auto, DB 904
1966 Morris Mini Minor

sandcrab59

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Re: Brake hoses
« Reply #12 on: September 13, 2013, 18:56:33 »
Thats a good question Jon.
How do you take it  apart?
Tom
71 280SL-8  Euro
67 250 SL
72 220 D
1982 300 SD
1983 300SD
1985 300SD
1931 Model A Ford Roadster
1997 Corvette C5

magicman

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Re: Brake hoses
« Reply #13 on: September 14, 2013, 04:58:17 »
My understanding is that you need a special wrench like tool to open up the brake booster. It cost me $135+ shipping for the rebuild.