Subscribe

Please consider signing up to receive news and all the info on the CKGB website so you are kept up-to-date with clubs news and events

SUBSCRIBE NOW

Author Topic: Delage 15-S-8  (Read 53195 times)

Applejack

  • Forum user
  • Posts: 91
  • Location: Surrey
Re: Delage 15-S-8
« Reply #105 on: 14 May 20, 11:36 am »
The average life of a Motorcycle break pads is 20.000 miles.Thats a lot of laps at Stretton in a CK

RhysN

  • Forum user
  • Posts: 973
  • Location: Tamworth
Re: Delage 15-S-8
« Reply #106 on: 14 May 20, 07:25 pm »
One of the issues is that the wrong disc size means the pads can come together without actually pressing on the disc surface when they have worn. That can be delayed by watching the pad wear and replacing them before it's an issue.
Are you talking about a set-up where the pads overhang the circumference of the disc and so the unworn parts of the pads will eventually touch?
Correct Stefan, noted on one of the CKs at Stretton. Graham is correct, if the original motorcycle pads are used in that life can be long. Hard pads of course don't give the same performance of softer pads. All those factors you have previously discussed come into play.
« Last Edit: 14 May 20, 07:29 pm by RhysN »
We must avoid torturing our brains with false problems, it occupies but it can annoy. In jest!

Marek.Z.N

  • Forum user
  • Posts: 332
  • Building an electric Delage 15-S-8
  • Location: Bagshot, Surrey
Re: Delage 15-S-8
« Reply #107 on: 15 May 20, 12:37 pm »
i have been looking at different options for master cylinders and i want the breaks to be two separate systems so that if one line or calliper or anything fails then i have the other system. I also want a working break light in the system somewhere and would like both master cylinders to use the same reservoir for ease of use.  Something i have found is a UTV master cylinder which has all of these things in one package. What i will probably do i get one of these and work out what size the cylinders are to see if it will work. here is a link to the part on ebay:

https://www.ebay.co.uk/itm/Hydraulic-Brake-Master-Cylinder-Pump-For-125cc-150cc-250cc-300cc-Go-Kart-Buggy/121757744597?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D226730%26meid%3D2740e2de8a454a21a5bd0cef8a4b27dd%26pid%3D100005%26rk%3D2%26rkt%3D12%26mehot%3Dag%26sd%3D193171571565%26itm%3D121757744597%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWebWithDarwoV1%26brand%3DUnbranded%2FGeneric&_trksid=p2047675.c100005.m1851

Ron

  • Forum user
  • Posts: 66
  • Location: Chesterfield
Re: Delage 15-S-8
« Reply #108 on: 15 May 20, 02:55 pm »
I reckon the pads would never wear so fast to be a sudden issue especially given it's the rear axle, probably half the weight and a 10th of the available power to dissipate , as an aside 10 years ago I did have it happen to a skoda estelle which somehow had brake discs incorrectly fitted from a 136 rapid (a Czech porsche 911) and gradually as the overhanging pads touched each other over a few 1000 miles it became more and more prone to locking the rear wheels.

Chris Brown

  • Forum user
  • Posts: 431
  • Location: Llangadog
Re: Delage 15-S-8
« Reply #109 on: 15 May 20, 03:16 pm »
Interesting master cylinder Marek, worth considering as I'm thinking of making provision for twin rear brakes.

Chris

RhysN

  • Forum user
  • Posts: 973
  • Location: Tamworth
Re: Delage 15-S-8
« Reply #110 on: 15 May 20, 03:18 pm »
Ron, "we" did have that issue with a cyclekart already, it's part of the reason that brakes are being given careful thought.Of course we have no idea what the pad material was.
We must avoid torturing our brains with false problems, it occupies but it can annoy. In jest!

Ron

  • Forum user
  • Posts: 66
  • Location: Chesterfield
Re: Delage 15-S-8
« Reply #111 on: 15 May 20, 03:20 pm »
Those master cylinders are hydraulically decoupled by the look so if actuated together without a compensator it is likely to have variable pedal feel unless both internal valves have exactly the same reactivity and the pads on one side suffer pad knockback to a differing degree, a either a tandem master cylinder from a car or 2 seperate master cylinders via a rocking balance bar would couple the hydraulic action against each other and also if one side failed the pedal would drop an inch to alert you of that fact, also of note it may be easiest to fit a micro switch to the pedal than a fluid switch potentially.
Having said all that it's still a neat looking unit.

Ron

  • Forum user
  • Posts: 66
  • Location: Chesterfield
Re: Delage 15-S-8
« Reply #112 on: 15 May 20, 03:23 pm »
I reckon actual triumph pads will probably be ok though, unless there is a supply of hessian epoxy copies in the supply chain haha

RhysN

  • Forum user
  • Posts: 973
  • Location: Tamworth
Re: Delage 15-S-8
« Reply #113 on: 15 May 20, 03:25 pm »
I reckon actual triumph pads will probably be ok though, unless there is a supply of hessian epoxy copies in the supply chain haha
Triumph pads might even be harder than ideal!
We must avoid torturing our brains with false problems, it occupies but it can annoy. In jest!

Chris Brown

  • Forum user
  • Posts: 431
  • Location: Llangadog
Re: Delage 15-S-8
« Reply #114 on: 15 May 20, 04:44 pm »
I was thinking of using a balance beam between the two clevises, just as you would do if using a pair of cylinders.

Slack Alice

  • Forum user
  • Posts: 149
  • Location: Newcastle upon Tyne
Re: Delage 15-S-8
« Reply #115 on: 16 May 20, 04:46 pm »
Don’t forget that using a balance bar will halve the foot pressure to each master cylinder.

RhysN

  • Forum user
  • Posts: 973
  • Location: Tamworth
Re: Delage 15-S-8
« Reply #116 on: 26 May 20, 07:50 am »
Suggestion for you.
If the brake disc is not the same diameter as the original Triumph ones you can cut the brake pads too have them match the outside arc. That eliminates the overhanging part previously mentioned.
Angle grinder with the 1 mm discs does the job, with dust mask of course.
We must avoid torturing our brains with false problems, it occupies but it can annoy. In jest!

Marek.Z.N

  • Forum user
  • Posts: 332
  • Building an electric Delage 15-S-8
  • Location: Bagshot, Surrey
Re: Delage 15-S-8
« Reply #117 on: 28 May 20, 07:08 pm »
working on the kart. just working on a few bits which will all come out as videos at similar times.

Ron

  • Forum user
  • Posts: 66
  • Location: Chesterfield
Re: Delage 15-S-8
« Reply #118 on: 28 May 20, 08:33 pm »
I wonder if cycle hub motors might be the ticket for this like say a pair of 2kw ones with the bonus that they look like massive old brake drums although obviously if you have the design settled then it's still going to be great!

Marek.Z.N

  • Forum user
  • Posts: 332
  • Building an electric Delage 15-S-8
  • Location: Bagshot, Surrey
Re: Delage 15-S-8
« Reply #119 on: 04 Jun 20, 06:08 pm »
here are some screenshots of a cad design i have made for my radiator and logo. I went to town with the "modernification" of this as a radiator isnt used on an electric car and i used the tesla font for the logo. i would probably make this out of fibreglass. An idea i have had for another modern feature that would be built into the radiator is that instead of standard 1920s/30s headlight i will make pop up headlights like on a mazda miata or toyota AE86. what do you all think?