Making own TR7 brake pipes help needed

The all purpose forum for any TR7/8 related topics.
Post Reply
Posts: 42
Joined: 05 Sep 2016 16:15
Location: Derby UK

Making own TR7 brake pipes help needed

Postby Traindriver69 » 26 Jul 2018 09:53

Hi all
I am having to replace a rear brake pipe and going to have a go at making my own but unsure which flaring tool I need I know its 3/16 size but do I need sae or din fitting.
Many thanks

Posts: 1410
Joined: 11 Jun 2007 22:55
Location: United Kingdom

Re: Making own brake pipes help needed

Postby dursleyman » 30 Jul 2018 15:20

Never heard of that question before and never seen it mentioned in sales information. I always thought it was just the pipe size that was important.
All the brake system on the TR7 is metric so presumably its the ISO/DIN Been making my own for donkeys years and recently bought a used BluePoint kit TF5A on Ebay and that works just fine.
Some of the cheap ones don't always do such a good job.

update, I found this information after a bit of searching but none of the adverts selling fittings that I have seen mention the differences. ... ed-bubble/

1981 TR7 Sprint DHC


Posts: 6214
Joined: 28 Apr 2005 12:32
Location: Australia

Re: Making own TR7 brake pipes help needed

Postby Hasbeen » 31 Jul 2018 02:59

Be careful giving that advice dursleyman.

In Oz we actually have a sticker on the cars warning that brake systems may be metric or imperial. Perhaps this only applies to Oz assembled cars, but in Oz at least the systems could be either.


Scuttle Shaker
Posts: 71
Joined: 31 Aug 2015 18:49

Re: Making own TR7 brake pipes help needed

Postby skertonman » 31 Jul 2018 11:11

I always believed the warning label was in reference to the unions (connector) being metric thread as opposed to imperial threads.

Every brake pipe I made up was with 5/16 copper (kunifer) tubing and the only difference being how the ends were flared with the tool, which was dictated by whether you were using a male or female connector.

Posts: 7059
Joined: 15 Mar 2006 19:29
Location: Netherlands

Re: Making own TR7 brake pipes help needed

Postby Beans » 31 Jul 2018 19:16

The label indeed refers to the fittings (for the brakes pipe screws M10x1 with ø5mm hole)
And according to an old bill from a local brake specialist the brake lines are 3/16" (= nearly 5mm)
The flares they fabricated were according to a DIN norm (double or single flare depending on fitting)
1976 TR7 FHC (currently being restored ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng)

Post Reply

Who is online

Users browsing this forum: hwadd91 and 31 guests