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20/70 hearse brakes

john.pinchbeck
Posts: 11
Joined: Mon Feb 04, 2019 7:40 pm
Location: Redditch UK

20/70 hearse brakes

Post by john.pinchbeck »

Hi, I am the guy who bought the 1928 Daimler 20/70 hearse on Ebay last year.
No, I haven't removed the reg !!
It is now totally stripped to rolling chassis and I have shortened the body, replacing all
wood with new ash (a new skill for me) to create a 2 seater sports . Pic available if I knew how.
I am trying to replicate the 40/50 or double six type and currently have a bonnet length of around 6 ft
I am now faced with lengthening the steering column which should be fairly straightforward and bringing
the crossmembers with brake, throttle and clutch assemblies closer to the driver (it helps ).
Does anyone know how the power braking facility works ?
I have removed it in it's entirety as rods and cables will have to be shortened at the rear and lengthened at the front.
Thanks in anticipation ,
John

Stan Thomas
Wise Man
Wise Man
Posts: 795
Joined: Sat Feb 13, 2016 2:14 pm
Location: Penkridge. Staffs.

Re: 20/70 hearse brakes

Post by Stan Thomas »

The car should be fitted with a Clayton Dewandre vacuum servo unit evacuated by a pipe leading off from the inlet manifold.

Sydsmith
Extremely Wise Man
Extremely Wise Man
Posts: 1369
Joined: Sun Feb 14, 2016 11:15 pm
Location: Aberystwyth Wales

Re: 20/70 hearse brakes

Post by Sydsmith »

Stan you are a mine of information.

John, if you Google the name Stan suggests there is a load of really interesting stuff on your servo.

There was I thinking a brake servo was a modern invention, nothing new under the sun. Syd

john.pinchbeck
Posts: 11
Joined: Mon Feb 04, 2019 7:40 pm
Location: Redditch UK

Re: 20/70 hearse brakes

Post by john.pinchbeck »

Thanks guys -there is a hose of sorts in the pile of bits somewhere.
When I undid and removed the unit, water poured out ???
John

john.pinchbeck
Posts: 11
Joined: Mon Feb 04, 2019 7:40 pm
Location: Redditch UK

Re: 20/70 hearse brakes

Post by john.pinchbeck »

Hi, just googled and found a video showing water pouring out of the system !!!
Need to clean the whole unit down then strip.

john.pinchbeck
Posts: 11
Joined: Mon Feb 04, 2019 7:40 pm
Location: Redditch UK

Re: 20/70 hearse brakes

Post by john.pinchbeck »

Does anyone know whee I can buy a refurb kit for servo please ?
John

john.pinchbeck
Posts: 11
Joined: Mon Feb 04, 2019 7:40 pm
Location: Redditch UK

Re: 20/70 hearse brakes

Post by john.pinchbeck »

Hi, servo system off and cleaned up -still looking to locate a refurb kit ?
It has H1/2 marked on the side - does that help ?

ranald
Helpful Person
Helpful Person
Posts: 485
Joined: Sat Feb 13, 2016 8:21 am
Location: North Wales

Re: 20/70 hearse brakes

Post by ranald »

Hi, You could try Classic Brakes, Kenton, Devon. All the best, Ranald

john.pinchbeck
Posts: 11
Joined: Mon Feb 04, 2019 7:40 pm
Location: Redditch UK

Re: 20/70 hearse brakes

Post by john.pinchbeck »

Ranald - many thanks - never heard of them -will give them a try mate.
John

john.pinchbeck
Posts: 11
Joined: Mon Feb 04, 2019 7:40 pm
Location: Redditch UK

Re: 20/70 hearse brakes

Post by john.pinchbeck »

Hi Ranald, I got a price for shipping, rebuilding and VAT from them.
Many thanks again for your help.
John

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