Diesel RVs: Re: [diesel_mercedes] Re: Brake line / hose connector screwed up

Actually I'm using the last of a gallon can of liquid wrench as fire starter. I bought it years ago before the advent of most of the aerosol products and whatever volatile components it originally possessed have long since evaporated.

On Wed, Apr 17, 2013 at 3:37 AM, Bobby Yates Emory <liberty1@gmail.com> wrote:

Alan,
I have not tried it on brake lines, but for most bolts, P B Blaster works better than Liquid Wrench. Spray it on, hit it one sharp blow with a hammer, wait a few minutes and try to unscrew,

(The design of the P B Blaster can is terrible. If I had not received a strong recommendation, I would have never bought it - it looks amateurish,)

Bobby

On Tue, Apr 16, 2013 at 8:04 PM, Alan Boucher <alstheone@verizon.net> wrote:

Since I'm assuming that you were planning on replacing at least the hose, try some heat from a very small torch flame applied to the metal end of the hose, even the heat from a propane or butane torch would usually cause the hose end to expand enough to allow you to loosen the nut. First soak the line above the nut and and the hose connection liberally with Liquid Stench or whatever solvent that works for you. The other problem in a situation like this is that the nut has rusted to the tube and turning the nut will twist the tube. Before heating the area, be sure to wipe off all of the residual liquid, and as always, when working with flames under a car, keep some kind of fire extinguisher handy. If you can get it apart, the condition of the hex on the nut doesn't really matter as long as you can get enough of a grip on it with a vise grip or whatever to tighten it.

On Tue, Apr 16, 2013 at 6:10 PM, Nate <vwnate1@yahoo.com> wrote:

German cars tend to have sheet metal clips holding the hose in place then the steel line screws into it , you have the loosen the line then carefully remove the sheet metal clip to get it all apart .

Pic would help here .

I wish I could be more specific but am not sure what you're working on @ there should be two rear brakes hoses as the suspension is independent .

-Nate
Jim wrote :
>
> OK what do I do now? The rear brake hose on my W123 won't come loose from the brake line. The bolt head is shot and it's stuck so tight I can't get it apart even with vice grips. I've never cut/repaired a brake line before. I don't know what sizes these things are, where to get parts and tools, never patched a brake line before. I'm guessing if I'm lucky I can get the bolt out of the brake hose by mangling it beyond recognition with vice grips, but I wanted to have tools etc on hand to fix it right then. Maybe I can cut off the flare, slip on a new bolt, and re-flare the line? Anyone know where I can get the stuff to do this with?
>
> Thanks,
>
> Jim
>

--
Toward freedom,

Bobby Yates Emory