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#1
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Replacing brake lines
I'm trying to replace the rear brake lines on my 1979 300SD but I can't get the old ones off. I put a wrench on the nut and spun lower metal fitting that's connected to the rubber hose but it's not getting loose. The top nut doesn't look like it's made to unscrew; it looks like it's welded to the assembly.
Any ideas? Thanks. |
#2
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The nut that you need to loosen is the one with the metal brake line going through it. That nut is easy to round off, so some penetrating oil and a quality line wrench are suggested. Also take care not to twist the hard line.
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#3
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Is it the very top nut in the first picture? If so, I'm having a hard time seeing how the replacement hose will connect. It's male on one end, female on the other. Do I just connect it directly to the hard line and bypass that assembly?
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#4
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Yes. The nut is "captive" on the hard line. It is not part of the hose assembly.
Quote:
No. The new hose should mount up just like the original one. I suspect that it will be crystal clear once the line nut is loosened/removed from the hose fitting. |
#5
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Thanks for the help and thanks for the heads up on rounding the nut off.
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#6
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Ther was a thread on this about 6+ moths ago. 2 of the Members said they uesd a special Vice Grips like the one pictured on Rounded Nuts.
I don't own one like it so cannot comment on if there is enough room for it. But, I have seen them and the come in different sizes.
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84 300D, 82 Volvo 244Gl Diesel |
#7
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I sprayed some PB Blaster on them. The shoulders look good. I doubt anybody has tried to remove them. I'll hit with PB Blaster a couple more times and clean it up before I try to unscrew it. That usually does the trick.
I'll see if I can find the thread. |
#8
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If you can do so safely heating the with a small Butane Torch or a Propan Torch helps to wick in Oil.
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84 300D, 82 Volvo 244Gl Diesel |
#9
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The trick is to hold the hard-line fitting fast while you torque on the hose fitting. DO NOT apply rotational force to the hard line fitting or you'll kink the line.
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