Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: JackstandJohnny on October 13, 2011, 02:42:09 PM

Title: re-flaring brake lines
Post by: JackstandJohnny on October 13, 2011, 02:42:09 PM

trying to get my old lines off the ZJ to install new, longer brakelines.  i can't get the old ones off. i tried a flare wrench to no evail.  also tried some vice grips and some heat.  still no go. i've pretty much stripped that bolt now. 

so, what kind of work is involved to reflare the line?  i 've never done this before.  lines going on are stock YJ brake lines.

will a single flare work with the stock YJ lines?

thanks gents

Title: Re: re-flaring brake lines
Post by: AV.NINE on October 13, 2011, 03:00:46 PM

Quote from: JackstandJohnny on October 13, 2011, 02:42:09 PM

trying to get my old lines off the ZJ to install new, longer brakelines.  i can't get the old ones off. i tried a flare wrench to no evail.  also tried some vice grips and some heat.  still no go. i've pretty much stripped that bolt now.  

so, what kind of work is involved to reflare the line?  i 've never done this before.  lines going on are stock YJ brake lines.

will a single flare work with the stock YJ lines?

thanks gents

Apparently parts stores sell pre-flared lines...

Title: Re: re-flaring brake lines
Post by: Raspberry on October 13, 2011, 03:07:24 PM

A flaring kit will run you approx $30 from princess auto. With said kit, I have successfully re-flared brake lines (using single flare and double flare, either seems to work fine) after encountering the same problem as you when attempting to install longer hoses.

There's a cutting blade tool to make a nice neat straight cut into the aluminium line, slip the 'bolt' back onto the line, then flare it with the flaring tool. Pretty self-explanatory, simple kit and works like a charm.

Title: Re: re-flaring brake lines
Post by: Black Betty on October 13, 2011, 04:46:57 PM

I have a flare kit for refrigeration pipe, I have flared aluminum with it before, you are welcome to borrow it along with my mini tube cutters.  It's pretty straight forward with the right tools.  Mine does only do a single flare, but have seen them hold up to 800psi without failure.  I will be around the south end tomorrow, let me know, you got my number.

Title: Re: re-flaring brake lines
Post by: cLAY on October 13, 2011, 09:39:14 PM

For brake lines you are required to have a double flare. Easy to do with the PA kit. I often use a die grinder to cut the line as close to the nut as possible to leave the line as long as possible. Maybe buy a piece of line to experiment on to get the hang of it.

Title: Re: re-flaring brake lines
Post by: JackstandJohnny on October 13, 2011, 09:45:57 PM

thanks justin :p

gonna relfare em at heeps this weekend :)