Test New Brake Lines

[PatGalvin]

Test New Brake Lines

So I just completed installing new brake lines on my bare TR3 Frame. I'd really like to test my work for leaks or obvious plumbing problems before I drop the body on at which time repairs will be more difficult. Anyone ever do this or see anyone do this? Don't have a body installed with pedal assembly so can't use that to pressurize hydraulics. Maybe rig up something with compressed air?

Pat

 

[charlie74]

Re: Test New Brake Lines

compressed air and soapy water? i'm sure there is a better way but have never tried this.
regards

 

[Andrew Mace]

Re: Test New Brake Lines

Compressed air might help detect a major leak, but the hydraulic pressure created from the master cylinder and pedal leverage amounts to many hundreds of psi, and I don't think you can replicate that with a home compressor (not to mention that the thought of introducing water -- soapy or otherwise -- into the braking system worries me).

Maybe you could build a temporary framework out of scrap lumber for the pedal box and master cylinder?

 

[TR3driver]

Re: Test New Brake Lines

I'm with Andy on this one. Compressed air is almost always saturated with water, making it very apt to condense inside your brake plumbing.

Personally, I'd just double-check my work by hand/eye and let it go. It's not that hard to work on the brakes with the body on (only way I've ever done it).

 

[PatGalvin]

Re: Test New Brake Lines

Thanks for ideas. I just don't trust my flaring ability. I made double flares on brake tubes. They looked OK but it's my first adventure into brake lines and one learns a lot on the first few flares and bends....

Thanks

Pat