New brake pipes for my 1986 mayfair, what size, and imperial or metric ? Plenty of "all you need kits" on Ebay, any experiance of them ? The positive and the negative battery cables do they degrade with age, is it worth chaging them, if so what with what spec cable ? Many Thanks.
Brake Pipes Imperial Or Metric
Started by
dow62
, Jun 20 2011 04:22 PM
7 replies to this topic
#1
dow62
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Posted 20 June 2011 - 04:22 PM
#2
MRA
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Posted 20 June 2011 - 04:40 PM
M10, M12, 3/8"unf are the main ones to go for.....
#3
wassupcrew
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Posted 20 June 2011 - 05:18 PM
brake pipe 3/6 od. unions are usually imperial on minis, i think 3/8 unf
#4
MRA
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Posted 20 June 2011 - 05:38 PM
Copper, Kunifer or steel at 3/16"
#5
Cooperman
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Uncle Cooperman, Voted Mr TMF 2011
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Posted 20 June 2011 - 05:50 PM
VERY IMPORTANT SAFETY NOTE RE: BRAKES
If you have the brake compensator valve on the front bulkhead the threads are M10 Fine, whilst all the other brake pipe union threads are 3/8" UNF. M10 Fine is very similar in thread form and size to 3/.8" UNF, so be very careful to get the connections correct.
Not one of Austin-Rover's better design efforts!
If you have the brake compensator valve on the front bulkhead the threads are M10 Fine, whilst all the other brake pipe union threads are 3/8" UNF. M10 Fine is very similar in thread form and size to 3/.8" UNF, so be very careful to get the connections correct.
Not one of Austin-Rover's better design efforts!
#6
MRA
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Posted 20 June 2011 - 05:56 PM
There are other areas that use M10 as well... such as brake master cylinders etc....
M10 will not fit 3/8"unf
3/8"unf will fit in to M10 but is a sloppy fit.
If it sloppy fit don't tighten it, check it out first.
And as Peter says it wasn't one of AR's better ideas
M10 will not fit 3/8"unf
3/8"unf will fit in to M10 but is a sloppy fit.
If it sloppy fit don't tighten it, check it out first.
And as Peter says it wasn't one of AR's better ideas
#7
Cooperman
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Uncle Cooperman, Voted Mr TMF 2011
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Posted 20 June 2011 - 06:06 PM
There are other areas that use M10 as well... such as brake master cylinders etc....
M10 will not fit 3/8"unf
3/8"unf will fit in to M10 but is a sloppy fit.
If it sloppy fit don't tighten it, check it out first.
And as Peter says it wasn't one of AR's better ideas
Yes, I was asked to sort out a Mini where the 3/8 UNF had been 'graunched' (love that word) into the M10 UNF hole! Expensive cure. I insisted on changing the compensating valve. I have heard of drilling and Heli-coiling' the damaged thread, but it's not something I would want to do.
Edited by Cooperman, 20 June 2011 - 09:36 PM.
#8
dow62
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Posted 20 June 2011 - 09:28 PM
Many thanks for replies, as ever always helpfull.
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