Brake line junction gasket leaking

[cos]

Thanks for reply. Hadn't thought about annealing, the ID is still large .390. might try, they are not working the way there are now. Did think about using softer AL. but might be hard to find exact size just like CU.
  What I  need is gaskets in exact size .375 ID X .50 OD. My ford parts book is missing pages with brake stuff so I really don't what  Ford for used.

[djfordmanjack]

I am currently working on vintage British cars and SU carbs, and obviously they still have all the different imperial size copper and fibre seals. Maybe you should try inquire with them, like Moss Motors or such. there will be many sellers in the US.
I exactly know the problem that you have. since the cheap generic metric/imperial universal copper rings from offshore production are often a loose fit and also too hard. When I order correct replacement rings from British car suppliers, they are much better.
If you still have the old original rings. what I have done is simple said. put emery cloth on a level bench surface (steel plate or glass will work also) and just sand the old copper rings smooth. Reusing and refurbishing old copper rings has worked well for me.


That said, have you checked the brass junction block/fitting for hairline cracks ?

[cos]

Thanks for reply. I bought a assortment of small thin CU gaskets (seals, rings, washers, etc called by many names) that had some 9/16" OD and 5/16 ID". Was able to bore ID out to 3/8 which is a tight fit on shoulder of bolt thru junction block. Put gaskets and bolt on junction block with a 3/8" NF nut on hose end tightened down. Gaskets had ring groves transferred from junction block, hoping this will fix weeping problem. Good advice about keeping original gaskets, never thought so hard to find proper sized gaskets.

[Gene]

Like a banjo washer, or conical washers?

[cos]

hello  leak is fixed. I found thick gaskets will not crush like thin (stock) gaskets. The most important part is gaskets ID must have tight fit on thru the junction block bolt.