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  1. #1
    Join Date
    Feb 2011
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    Devon
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    266

    Identifying front calliper XJ6

    Hi All
    I want to fit new front brake hoses to my Dax, is there a positive way of identifying the correct fitting for the new hoses without taking the old ones off?
    I presume it’s early series 1 or 2, not sure if they’re the same fitting.

    Geoff

  2. #2
    Join Date
    Oct 2006
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    Toton, Nottinghamshire
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    45
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    772
    Quote Originally Posted by Mitch View Post
    Hi All
    I want to fit new front brake hoses to my Dax, is there a positive way of identifying the correct fitting for the new hoses without taking the old ones off?
    I presume it’s early series 1 or 2, not sure if they’re the same fitting.

    Geoff
    Geoff,
    If they are XJ-6/12/S calipers then they are normally Series 2 or 3 and most Cobra builders opted for the 4-piston Girling caliper. These can be metric or imperial threads. This web page may help..http://www.jag-lovers.org/xj-s/book/SSBrakeHoses.html
    There are a number of online specialist Jag parts suppliers. Most have pictures of the parts so you can compare with the hoses you are wishing to replace.

    Russ.
    Joint Area Rep - East Midlands Region
    1984 DAX Cobra
    Rover 3.5 V8 with Holley carburetor.

  3. #3
    Join Date
    Jul 2013
    Location
    Hertfordshire
    Posts
    462
    Have you got a photo of them?

  4. #4
    Join Date
    Feb 2011
    Location
    Devon
    Posts
    266
    Thanks Russ, I’m sure this has been gone over before, but just wondering if fitting braided hoses will make for a better pedal. There seems to be some controversy over the benefits.
    I fitted a new master cylinder recently but still have a long pedal, I’m going to fit a new resovoir which will enable me to use a pressure bleeder.
    It was suggested to fit some braided hoses as well while I’m at it.
    Anyone else have any opinions if they’re worth fitting?

  5. #5
    Join Date
    Jan 2002
    Location
    Marlow
    Age
    67
    Posts
    1,723
    Hi Mitch, What is the controversy? I have never read of any? Braided hoses for me.

    Cheers Clive
    On On

  6. #6
    Join Date
    Feb 2011
    Location
    Devon
    Posts
    266
    Hi Clive
    Have a look at the link in Russ’s reply, seems to sum up the alternative view.

  7. #7
    Join Date
    Nov 2016
    Location
    Stevenage
    Age
    46
    Posts
    141
    Early calipers on the 4 potsi think imperial brake pipe fitting thread. Later after early 1980’s i think metric. Also i did away with the link pipe and bracket and the bradeds (dax) screwed straight in with a compression copper washer

  8. #8
    Join Date
    Oct 2005
    Location
    Cape Town, RSA
    Age
    54
    Posts
    123
    This is an important part in the link provided, and not only for XJ6:

    "10mm x 1.0 is not the same as #3 AN. The thread on #3 AN is 3/8"-24, or standard 3/8" UNF. Needless to say, you do not want to mismatch threads on a brake system. Check very carefully, as these two are close enough you can actually screw them together."

    M10x1 won't fit into 3/8 UNF, but it fits the other way around - and will never work! M10x1 basically has a 25,4 TPI versus the 24 TPI of the 3/8 UNF.

    Beware of using a spanner to test. I have seen 3/8 UNF fittings with 10 mm spanner size.

    On a side note, there is a similar disaster lurking with M12x1,25 (20 TPI!) which is similar to 1/2" UNF (20 TPI)
    This is cruicial on caliper bolts and wheel nuts/studs!
    Nothing is as it seems...

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