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Triumph Torque    Cars    Herald/Vitesse  ›  needing help with a 948 brake conversion
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Nick Jones
December 26, 2017, 3:25pm Report to Moderator

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Quoted from Bitumen Boy
My experience of front drums is that they need constant cleaning and adjusting - like every weekend constant - if they're to work at all, I can't speak about them working well as that's something I never achieved. Discs work better and need a lot less maintenance so it's a no brainer for me - discs every time.


I would tend to agree with this.  My experience perhaps not quite so negative, they certainly could be pretty effective when working properly but definately a much more reliable and consistent result from the discs without any need for regular fettling.

Two conversion routes available to the OP.

1.  There was a factory option for discs (certainly for early 1200, not sure if ever offered for 94 which used the same vertical link with an adaptor piece for a caliper fitted instead of the drum backplate.  To go this route you'd need

- The adapter plates (v. hard to find now)
- Calipers.  Would originally have been type 12 but 14s could also be used and easier to find now
- Hubs & discs.  Some variation between early (Type 12 caliper) and later (type 14 caliper) with the latter having a machined edge on the circumference to give clearance with the calipers
- Brake pipes - new flexi-hoses plus I'm pretty sure I had to modify the hard-line run slightly though it's years ago now......

2. Use the complete later vertical link assembly with hubs/discs calipers from any Herald or Spitfire.  Same comments on brake lines will apply.

Nick


Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
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Casper
December 27, 2017, 12:00am Report to Moderator


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Quoted Text
To go this route you'd need

also, the correct stub axle.  I haven't  got the chapter and verse but the disc conversion adds 1" to the track


Herald Anorak
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heraldhabitat
January 21, 2018, 11:18am Report to Moderator

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I ran drum brakes on my courier van, till I ran out of brakes on the RBRR a couple of times, then I converted to discs, its been restored now (Chris Gunby 1678VC) and is back on drums.


Chris Allen. Midlands Representative
Club Triumph Enquiries
RBRR 88,90,92,94,96,98,04,06,08,12 marshal 2010, 2014, marshal 2016
10CR 2011,2013, 2015 and 2017
2500 Mk1 Saloon 1964 Nothing original
Triumph herald 13/60 convertible 1971

Blog http://nuts-about-triumphs.blogspot.com
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Paudman
January 22, 2018, 2:36pm Report to Moderator

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Drums are adequate until the first time you get into your Triumph after a week driving a servo-powered modern.
Then you lightly tap the brake pedal and nothing happens, so you press harder, and nothing happens, so you stand on the pedal and the car eventually stops.... it takes a bit of getting used to after a modern...


If it was made by man, it can be dismantled and rebuilt by man. Usually just not as easily.
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Mark Hammond
January 22, 2018, 7:57pm Report to Moderator

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I’d disagree with that.  Well shod and adjusted drums are perfectly reasonable for a 948 or 1200 Herald unless used for hard driving all of the time.

M.


Herald 1200 Saloon, owned (in the family) from new, Royal Blue/Black trim
[color=purple]MX-5 Z-Sport (Tweaked to 200bhp)2007,
Suzuki Vitara S Auto, Cosmic Black, 2017.
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