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MG MGB Technical - Need Brake line help

Hi I am currently restoring my 75 mgb in my school, and one of the custodians threw out all my brake lines. I emailed a site www.classictube.com they said they only make 72-74 brake lines, but they side they should fit on my 75. My question is are the brake lines from a 72-74 close enough or the same as a 75's?
Thanks in advance for the help.
Sdmgb

I am making all new brake lines and it is slow and a pain, but, it is not that hard. It takes a flaring tool, a tube bender and time. total cost <$35
frank-in-san-diego

According to Anders Ditlev Clausager's "Original MGB,pg 93, "there were no important changes to the brake pipe or their runs" it appears from 1970 to 1975. 1976 saw revisions to the master cylinder and servo, and dual circuit systems had a pressure failure warning switch. Another approach is to buy various lengths locally and make up your own with a tube bender and double flaring tool kit. The only line that I could not find long enough locally in one piece is the line that goes to the back axle. I used a flare union under the seat area.(not concours) Cost for all steel lines would be maybe $15-20. Don't know how this compares to Classic Tube.
You will have to scource three or four of the female nuts used to join steel to the flex lines from one of the suppliers for new, or used lines from a breaker. Just cut the old line and remove the nut.
This is not that difficult a job to do, although if you don't have the tools, buying the preformed lines may be the cheaper way to go.
I hope the custodian keeps his hands off the other bits.

Pete H
76 B
61 AH 3000
Pete Haburt

I don't think the lines are even similar. A 1974 and a 1975 have different master cylinders, and the 1975 doesn't have the brass presure failure switch mounted on the inner fender in front of the pedal box. You might be better off purchasing a pipe kit from Moss or another supplier. That would get you the pre-flared lines of approximately the correct length, with the proper fittings. You would still have to bend the new lines to the correct shapes, without your original lines to use as patterns.

BTW, I'm currently installing a set of lines from Classic Tube on my 1974. They're a pretty close fit, but they still need some careful hand-fitting with a tubing bender.
David Pash

Thanks for the help guys
Sdmgb

Sdmgb,
If you end up buying a flaring tool, please buy the right one - one for making ISO bubble flares, not double flares. One advantage to using locally sourced pipes over mail order is that they'll be straight, not coiled. BTW, 68-74 North American (and others, if any, that used the dual non-servo master) all would have the same pipe patterns.
Wade Keene

Would there be any problems using stainless tubing for brake lines and/or fuel lines? I have a brother who's an instrument tech at a nuclear power plant, and he said he'd bend up a set from some excess stainless he has. Would look pretty neat on a newly finished undercarriage. By problems, I'm wondering about electrical conductivity, etc... with fuel lines, or anything else like that?

Thanks,

Steve
Steve

This thread was discussed between 16/12/2003 and 18/12/2003

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