[Healeys] Front Wheel Cylinders

[John Harper]

Patrick

One early BN1s the wheel cylinders were 1" diameter all around. The same
for BN2 and 100/6.

However the later BN1s with 5 stud rear axle and 2 1/4" rear brakes had
7/8" front wheel cylinders. Larger rear brakes than front is rather
illogical but came about under pressure to fit BMC parts rather that Austin
units. The smaller front wheel cylinders appear to have balanced up the
braking effort from different width drums but the theory behind this is to
me rather obscure.

I would suggest that you fit the same diameter cylinders as were originally
fitted.

Best regards


On 19 August 2013 08:33, Patrick & Caroline Quinn <p_cquinn at tpg.com.au>wrote:

> G'day
>
>
>
> I am having trouble getting my head around the properties of hydraulics as
> it effects front wheel cylinders.
>
>
>
> I have just taken delivery of 4 new front brake wheel cylinders.
>
>
>
> The pistons are 1in diameter while the old ones are 7/8in diameter.
>
>
>
> I can't figure out what difference it will make.
>
>
>
> Any idea?
>
>
>
> Hoo Roo
>
>
>
> Patrick Quinn
>
> Blue Mountains, Australia
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-- 
Best wishes

John Harper

AHC UK 100 Register Secretary