Andy909 · May 1, 2010

Hi there, I've just put new shoes on. Found the pistons were leaking just a little bit on the drivers side. Cleaned all the muck from around it, replaced the rubber, got the wife to press the brake peddle while I watched the piston and no leak

Put everything back together and tried it all. brake pedal hard as it should be (not spongy at all) and no visible leaks...... is this normal.

Andy909 · May 3, 2010

It seems nobody knows, (or just not bothered to reply) so heres what I've found out. its normal to lose a bit of brake fluid through the pistons over time. It's all the crap that builds up inside.

So thanks.........

Pikey · May 3, 2010

Andy909 said:
It seems nobody knows, (or just not bothered to reply)
So thanks.........

Or they don't give a ****. OR possibly it's a bank holiday and everyfooker is out enjoying themselves and havent had time or inclination to log on to the forum.

Good thing is Brake fluid is highly flammable so should help when you do the sensible thing and burn the fooker.

ssmn1234 · May 3, 2010

if wheel cylinders are weeping it is good practice to check for wear, which by the way there generally is, and if minor wear give light hone before installing new buckets. I'd say unless you are exceptionally lucky, you will be up for re-doing it again shortly. Oh, and always good practice to repair both sides at same time.

big dave2 · May 3, 2010

EYUP andt like ssmn sez you will be doing it again shortly mate im afraid;;;look at it this way the cylinders are leaking! ok the walls + seals are worn,renewed seals ,champion all working but you have only solved half the problem it wont last? now then when it leaks again ,and it will, it ruins the brake shoes ,more expense.now cast cylinders do resist wear but they rust damn,alloy cylinders dont rust but wear quickly ,you cant bloody win can you!!but if you shop at the right place cylinders are cheap so dont muck @ replace em,fit em with copperslip ect,make sure they are greased so they wont sieze up,you could also consider using silicone brake fluid because it non hydroscopic i found it very good on my vintage cars(layed up for the winter they didnt sieze up ).
cylinders are cheap if you shop around .hope this helps...dave

Chaser · May 3, 2010

Andy909 said:
It seems nobody knows, (or just not bothered to reply) so heres what I've found out. its normal to lose a bit of brake fluid through the pistons over time. It's all the crap that builds up inside.

So thanks.........

As I am bothered if you hurt someone else should your brakes fail, I'll give a reply. If the pistons seal is leaking it is only ever going to get worse which if ignored will ultimately result in brake failure in that circuit. It is not normal to ignore fluid leakage under the the dust cover, it is an indication the seal/cylinder is ****ed.

Hippo · May 3, 2010

A helpful tip from experience. When my rear brakes leaked, they failed to stop my Freelander. At first I noticed they wern't as effective as normal. Not that many pumps of the brake pedel confirmed they wern't effective at all.

Imagine if the truck driver travelling behind you half heartedly repaired his brakes?

Andy909 · May 4, 2010

Thanks for your replies, very helpful and very appreciated.

I have already been pricing the parts up so it will be getting done very soon. Many thanks.

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