1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

thread pitch going into brake MC

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Old 07-18-08, 01:54 PM
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thread pitch going into brake MC

are the thread pitches on the SA different at the MC/dist. block as well? had to order some new lines for the rear end swap and was looking for some options to swapping in this other distribution block and/or Master Cylinder...trying to come up with a combination to work without ordering anymore lines i have to have made. The company made me a great DOT approved line, but i'd prefer not to have to spend the cash.
Old 07-18-08, 02:25 PM
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afaik the SA's are 1.25 everywhere
Old 07-18-08, 02:55 PM
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i'm pretty sure also, i had a chance to take a look at it. Does anyone have a good idea for fixing this problem without having to make all new lines? i was kinda leaning towards an aftermarket proportioning valve.
Old 07-18-08, 07:51 PM
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Mazdatrix sells a stainless steel line rear hose kit for the FB/Disc that can include an adapter hose to the existing SA rear hard-line, so no SA lines need to be swapped except soft line at back axle junction-
Stu Aull
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Old 07-19-08, 01:02 PM
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i have that part finished. we're talking about the master cylinder and distribution block. The dist. block for a disc brake rear is different.
Old 07-19-08, 01:20 PM
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The easiest way around this, would be to use the FB hard lines all through the system. Of course, you'd need to swap to FB front calipers and mounting brackets as well.

FYI, the clutch hydraulics have the same thread pitch as the brakes.
Old 07-19-08, 05:59 PM
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Re-Speed has just the line too if you don't want the whole kit.
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