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Sunbeam-mike

United Kingdom
165 Posts
Posted - 25 Apr 2023 :  15:32:45  Show Profile  Reply with Quote
A nice explanation curtesy of the MGA club:

https://mgaguru.com/mgtech/brakes/bt201k.htm

Mike Hooper
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Sunbeam-mike

United Kingdom
165 Posts
Posted - 25 Apr 2023 :  15:15:46  Show Profile  Reply with Quote
Hi Martyn,

Found this: "You check the brake servo (vacuum servo) by pushing the brake pedal repeatedly and then starting the engine with the brake pedal pushed down. If the brake servo works as it should, the brake pedal should move downward slightly as you start the engine."

from here: https://www.ikorkort.nu/en/vk_korkortsfraga_en_6.php#:~:text=You%20check%20the%20brake%20servo,as%20you%20start%20the%20engine.

From my experience this slight downward movement sounds about right.

I also found a similar paragraph here: https://autotechnician.co.uk/brake-servo-fault-finding-guide/

The last link also has some further info that might help, although some procedures described involve specialist test equipment.

Obviously check for fluid leaks a such. I'm not sure but I think an improperly adjusted handbrake has an effect as well.

Mike Hooper
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mardi.bob

29 Posts
Posted - 25 Apr 2023 :  13:53:17  Show Profile  Reply with Quote
Hi Mike yes extra pressure to stop it a nightmare that’s why I’m not using her at the moment how do I check the servo
Many thanks Martyn
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Sunbeam-mike

United Kingdom
165 Posts
Posted - 24 Apr 2023 :  10:14:13  Show Profile  Reply with Quote
Do you need extra effort to stop?

Do they release ok? Or do they almost lock on?

In either case, maybe the servo needs a service.

Mike Hooper
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mardi.bob

29 Posts
Posted - 21 Apr 2023 :  12:48:43  Show Profile  Reply with Quote
Hi fellow members I’m after information about upgrading my brakes on my 1972 alpine fastback they are so hard under pressure and don’t stop very well any information will help many thanks
Not been using it for that reason

Martyn
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