Anyone remember drum brakes? ISTR it was generally said at the time,
back in the day, that if those linings got brake fluid on them, they
were fucked and only fit for the bin. Is that true? I'd have thought
there ought to be some way of making them useable again. They're
getting harder and harder to come by!

On 14/11/2023 19:19, Cursitor Doom wrote:
> Anyone remember drum brakes? ISTR it was generally said at the time,
> back in the day, that if those linings got brake fluid on them, they
> were fucked and only fit for the bin. Is that true?

I would have thought that th brake fluid acted as a lubricant, which is
not ideal in a brake.

>I'd have thought
> there ought to be some way of making them useable again. They're
> getting harder and harder to come by!

You can get them re-lined, but as this is a service for classic and
vintage cars, probably not cheap:

https://saftek.co.uk/friction-products-for-classic-vehicles-and-race-applications/

--
Colin Bignell

On 14/11/2023 20:15, Colin Bignell wrote:
> I would have thought that th brake fluid acted as a lubricant, which is
> not ideal in a brake.

An old trick, was to soak them in petrol, then set fire to them. I don't
now how modern lineings might react to that treatment though.

On 14/11/2023 20:15, Colin Bignell wrote:
> On 14/11/2023 19:19, Cursitor Doom wrote:
>> Anyone remember drum brakes? ISTR it was generally said at the time,
>> back in the day, that if those linings got brake fluid on them, they
>> were fucked and only fit for the bin. Is that true?
>
> I would have thought that th brake fluid acted as a lubricant, which is
> not ideal in a brake.
>
>> I'd have thought
>> there ought to be some way of making them useable again. They're
>> getting harder and harder to come by!
>
> You can get them re-lined, but as this is a service for classic and
> vintage cars, probably not cheap:
>
> https://saftek.co.uk/friction-products-for-classic-vehicles-and-race-applications/
>
In my more impecunious younger days, many many years ago, I had a
Corsair that leaked oil onto the front disc pads so every now and then I
put them under the grill. It worked moderately well until I forgot to
pump-up the brakes after refitting the pads late one Sunday ... the
result cost more than repairing the leak would have cost.
It used to be possible to buy linings and rivets for DIY re-lining ...
maybe Mr Google can help ... If you haven't got a better option then you
could try heating them up for a while to burn-off the oil.

On Tuesday, 14 November 2023 at 23:09:59 UTC, noth...@aolbin.com wrote:
> On 14/11/2023 20:15, Colin Bignell wrote:
> > On 14/11/2023 19:19, Cursitor Doom wrote:
> >> Anyone remember drum brakes? ISTR it was generally said at the time,
> >> back in the day, that if those linings got brake fluid on them, they
> >> were fucked and only fit for the bin. Is that true?
> >
> > I would have thought that th brake fluid acted as a lubricant, which is
> > not ideal in a brake.
> >
> >> I'd have thought
> >> there ought to be some way of making them useable again. They're
> >> getting harder and harder to come by!
> >
> > You can get them re-lined, but as this is a service for classic and
> > vintage cars, probably not cheap:
> >
> > https://saftek.co.uk/friction-products-for-classic-vehicles-and-race-applications/
> >
> In my more impecunious younger days, many many years ago, I had a
> Corsair that leaked oil onto the front disc pads so every now and then I
> put them under the grill. It worked moderately well until I forgot to
> pump-up the brakes after refitting the pads late one Sunday ... the
> result cost more than repairing the leak would have cost.
> It used to be possible to buy linings and rivets for DIY re-lining ...
> maybe Mr Google can help ... If you haven't got a better option then you
> could try heating them up for a while to burn-off the oil.

Hot soapy water. Folk said it would ooze back out but no such problem. Of course whatever you do would need to be tested thoroughly before trusting lives to it.

On 14/11/2023 19:19, Cursitor Doom wrote:
> Anyone remember drum brakes? ISTR it was generally said at the time,
> back in the day, that if those linings got brake fluid on them, they
> were fucked and only fit for the bin. Is that true? I'd have thought
> there ought to be some way of making them useable again. They're
> getting harder and harder to come by!

I don't see whyt. Many vehicles still feature drum brakes.

--
"If you don’t read the news paper, you are un-informed. If you read the
news paper, you are mis-informed."

Mark Twain

On 14/11/2023 19:19, Cursitor Doom wrote:
> Anyone remember drum brakes? ISTR it was generally said at the time,
> back in the day, that if those linings got brake fluid on them, they
> were fucked and only fit for the bin. Is that true? I'd have thought
> there ought to be some way of making them useable again. They're
> getting harder and harder to come by!

When brake fluid is impregnated into the lining material the coefficient
of friction goes up. I had a terrible experience where a minor leak
would occasionally cause a rear drum to lock-up. Only to be released by
rolling backwards.

After I changed the seals and stopped the leak I heated the shoes to
remove the glycol brake fluid rather than changing them. I could see the
vapour rising after heating them.

In short the braking characteristics can dramatically changed with
contaminated brake linings.

I thought Rollers generally used components from standard cars and were
fairly easy to come by?

BICBW

On 14/11/2023 19:19, Cursitor Doom wrote:
> Anyone remember drum brakes? ISTR it was generally said at the time,
> back in the day, that if those linings got brake fluid on them, they
> were fucked and only fit for the bin. Is that true? I'd have thought
> there ought to be some way of making them useable again. They're
> getting harder and harder to come by!
Ref my earlier reply - a quick search for <brake shoe lining> shows that
linings and appropriate rivets are still readily available.

Okay,
Many thanks, all. Got enough detail now to proceed.

CD.