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Silicon Brake Fluid

 
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bcal
700RPM



Joined: 04 Feb 2021
Posts: 722
Location: The Shire, Sydney

Posted: Fri Jul 30, 2020 3:53 pm    Post subject: Silicon Brake Fluid

This rod I just bought uses silicon brake fluid.
Apparently itís been like that for 20 plus years.
I remember that there use to be some controversy about it back in the eighties but can't remember all the pro and cons.
I also believe that if I go back to conventional brake fluid Iíll have to replace all the seals in the system because theyíll swell.
The brakes on this car are excellent so I guess Iíll stick with it, but where can you buy this stuff from these days?
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Pep
900RPM



Joined: 14 Jun 2021
Posts: 949
Location: Georges Hall, NSW

Posted: Fri Jul 30, 2020 3:57 pm    Post subject:

You must be very observant there Brett.....I have to admit I couldn't pick the difference...is there something obvious to look for?
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old32
500RPM



Joined: 05 Mar 2021
Posts: 522
Location: at work in Melbourne

Posted: Fri Jul 30, 2020 4:10 pm    Post subject:

Silicon brake fluid can make some seals swell, causing all sorts of problems but as the car has had silicon in it for this time all seems OK, your local brake shop should be able to tell which seals cause trouble.

I used to sell it years ago, but not anymore.

You could try Rod Stop or Rod City both would know where to get it.
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bcal
700RPM



Joined: 04 Feb 2021
Posts: 722
Location: The Shire, Sydney

Posted: Fri Jul 30, 2020 6:37 pm    Post subject:

Thanx so far fellas.
I guess after all these years the previous owners have sorted out the seal thing.
These brakes are on par with anything else I've ever owned. HJ discs front and back with matching mastervac.
The other problem that can occur with silicon fluid is if someone tops up with ordinary brake fluid. This causes the seals to swell.

Not so observant pep, the old owner told me.
It's clear and has a less pungent odour. Also feels a bit greasy like glycerine.
I'd say it tastes far better too
I've got litres of silicon oil at work but not sure if it's the same stuff.
Would be great if it was.
Time for some googling me thinks.
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Brett.
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old32
500RPM



Joined: 05 Mar 2021
Posts: 522
Location: at work in Melbourne

Posted: Tue Aug 03, 2020 4:13 pm    Post subject:

Bit more on Silicone on the RRT
http://www.roddingroundtable.com/tech/articles/brakefluid.html
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bcal
700RPM



Joined: 04 Feb 2021
Posts: 722
Location: The Shire, Sydney

Posted: Tue Aug 03, 2020 6:19 pm    Post subject:

Thanx for that, very interesting.
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