Rusty Brake Cylinder

[Guest sunny-bono]

Hi,

i have noticed on a couple 205s that you get rust on the brake cylinder. is this normal? my last one had some but i never really took any notice. But now i am rather concerned. Is the normal, should i worry?

 

How much would it cost roughly to get them swapped? ( i doubt i could do the work myself)

 

Thanks

[hengti 2]

do you mean the master cylinder under the bonnet, or the wheel cylinders on the 1.6 drums?

 

it's normal in either case - no need to worry

[Guest sunny-bono]

should have been clearer. sorry

 

under the boneet, top left hand side when at the front (not like you would be looking from any where else really ).

 

why do they rust? is the brake fluid coming from the between the unions? can it ever get really sever? ie mot failure?

[hengti 2]

should have been clearer. sorry

 

under the boneet, top left hand side when at the front (not like you would be looking from any where else really ).

 

why do they rust? is the brake fluid coming from the between the unions? can it ever get really sever? ie mot failure?

 

 

i believe they're made from some sort of anodised steel, which will attract surface rust eventually. it's a hefty lump of metal though and won't ever rust through (not whilst you or i are alive anyway )

 

if you've got brake fluid leaking from the unions, you definitely need to look at that - as, apart from letting fluid out, it'll be letting air in - which'll muck up your brakes. if you've got a leak, you might have noticed that the brake pedal is soft - ?

 

if not, there's nothing to worry about

[Anthony 1,003]

The body of the master cylinders do rust pretty quickly - the brand new one I fitted to my car just six months back is already looking a little rusty

 

As said though, it's only cosmetic and nothing to really worry about from a braking performance or safety point of view.