Paul (Notts)
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| posted on 2/4/06 at 12:07 PM |
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Brake pips flares - single or double
What type of flare should have I used at the ends of my brake pipes. When I started ( seems a long time ago now..) I read somewhere that you should
always use double flares as these are much stronger than single flares…
Now I think that I should have used a single flare if I was putting a male nut on the pipe and only used double for female nuts .
I have a double 45deg flare fitted on the pipes going into the master cylinders and also into the 3 way unions –is this a major issue or should I just
see if they seal when I test the brake system.
Some ideas please as if they need changing I must do it soon before the engine goes in – this summer.
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stevec
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| posted on 2/4/06 at 12:30 PM |
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I would say single for male and double for female.
Steve.
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rusty nuts
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| posted on 2/4/06 at 01:06 PM |
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Chech the fitting that the pipe nut is being screwed into , as Steve has pointed out normally single on male nuts and double on female BUT not always
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britishtrident
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| posted on 2/4/06 at 02:28 PM |
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With metric fittings male connections are generally single flair, females are double flair.
Although I have seen flexible brake hose connections (I think on Chevettes) that mated withed male connection.
With old style imperial fittings males could be either depending on what they were screwed into a good example being the cross axle pipe on Escort MK1
axles fitted with Girling single piston sliding wheel cylinders.
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Paul (Notts)
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| posted on 2/4/06 at 02:29 PM |
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Cheers...
just changed the double flares to single conical flares which match the fittings
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britishtrident
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| posted on 2/4/06 at 02:59 PM |
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Metric flares should really be the square shouldered "bubble" flare type, but you can get away with imperial style connical flairs
provided you check them carefully for leaks after fitting.
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Liam
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| posted on 2/4/06 at 03:29 PM |
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Doesn't it simply depend on what it must seal against? In my system I have some concave fittings which seem to need a single flare, and some
convex fittings which definately need a double flare.
Liam
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Paul (Notts)
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| posted on 2/4/06 at 04:24 PM |
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Yep..
my flex pipies will need a double flare as they have a convex surface
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britishtrident
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| posted on 2/4/06 at 04:40 PM |
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quote:
Originally posted by Paul (Notts)
Yep..
my flex pipes will need a double flare as they have a convex surface
Yes but they would normally mate with a female tube nut as per standard Ford Cortina practice. Strickly speaking no standard exists for using a
doulble flare with a metric male tube nut, you do find them usually metric male tube nuts screwing into brake hoses but this isn't standard.
Female tube nuts are simpler always double flared.
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Paul (Notts)
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| posted on 2/4/06 at 05:04 PM |
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my flexy pipes will mate with a metric female nut on the brake pipe, not a male nut.
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