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8 & 10 cyl Bristol cars Type 407 onwards - restoration, repair, maintenance etc

412 front brakes

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Old 06-06-25, 06:55 PM
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Default 412 front brakes

I haven't used my car -'87 Beaufighter, for about a year. I just jacked up the front and both brakes are seized on.
I was wanting to replace the seals.
Would calipers be same as Jaguar XJ6?
Any information appreciated.
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Old 06-06-25, 07:43 PM
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Location: West Wales.
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These are what you are looking for, I find Mev Spares a good firm to deal with, lot of Bristol brake parts listed, you should be able to get them from Past Parts and Powertrack Brakes as well.
Geoff.

https://www.ebay.co.uk/itm/226558713273
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Old 06-06-25, 07:54 PM
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Thanks for reply.
In fact, I looked on ebay after posting my message here and found MEV spares, with the seals. Seals are for cars '65 - '82, but I'm guessing nothing changed until my '87 car.
I've bought brake parts for other cars from them before.
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Old 07-06-25, 12:02 AM
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They should not have changed unless the car has uprated calipers to be absolutely of the original specification contact Graeme Payne at CBCPC I know he will have a lot of the brake components as well but I am not sure if he keeps the seals. We recently rebuilt the brakes on a 603 and fitted stainless steel pistons , new seals and bleed nipples all purchased from Powertrack Brakes, the caliper bodies were checked over and refurbished by a local engineer and although the overall cost was not as cheap as just replacing the seals and cleaning up the pistons this was not a job I wanted to revisit on a car which will now get occasional use. If the calipers on your car look the same as the Jaguar units then these seals should be what you need but I have seen one later and one upgraded car fitted with ZEUS calipers this will be very apparent as their name is cast into the cylinder bodies.
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Old 07-06-25, 07:45 AM
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Oliver,
Have you considered having your existing brake calipers refurbished? I have used a company called “Classicar Automotive Limited”, they are based in Chelford near Knutsford, Cheshire.
I have used them on several occasions (different cars) and I have had excellent service from them at a reasonable price.
Brian
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Old 07-06-25, 09:34 PM
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I've got one of the calipers off. Pistons all rusty, very seized up. I've no idea how the car moved forwards, I guess the engine's powerful enough to overcome the brakes.
Caliper is same as used on Jaguar '68-'73.
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