[Spridgets] What fluid for clutch master cylinder?

[Guy R Day]

Hi Wes,

Whilst you are probably right it is a question that must be put to AP, I 
wouldn't want to change their wording or put words in their mouth.  I'll ask 
them.

Guy R Day


----- Original Message ----- 
From: WeslakeMonza1330 at aol.com
To: grday at btinternet.com
Cc: spridgets at autox.team.net
Sent: Saturday, October 15, 2011 5:58 PM
Subject: Re: [Spridgets] What fluid for clutch master cylinder?


Do you suppose AP would guarantee their parts when used with a type of brake 
fluid they don't recommend you use?  AP's racing division make brake fluids 
with a higher boiling point than DOT 5 so I guess they don't see a need to 
make a silicone brake fluid.

I think the previous comments from the list make clear why it's not suitable 
for race use.

I don't manufacture or sell brake fluid and no-one gives me it free so I 
don't have an axe to grind.

If people want to use silicone brake fluid, being a produce the manufacture 
of the parts it is going to be used with don't recommmend, that's up to 
them.

Regards

Weslake-Monza 1330


In a message dated 14/10/2011 21:57:39 GMT Daylight Time, 
grday at btinternet.com writes:
  Hi Wes,
  AP products do NOT RECOMMEND their parts to be used with silicone fluid. 
I haven't seen anything about a guarantee rejection.  It is also noted they 
do not make or supply a DOT 5 fluid.
  http://www.apracing.com/info/info.asp?section=Additional%2Fhealth+%26+Safety+Information_88

  I've had a good trawl around the net for both DOT 5 manufacturers and with 
brake seal manufacturers and I've started getting replies from their 
technical bods.
  SO FAR there the same two camps that are here on the Spridget (et al) 
sites.
  Those who DON'T supply it say it is it is a product that is not fit for 
use.
  Those who DO make it and / or sell it say it is the best thing since 
sliced bread!
  One I have got back says its properties make it unsuitable for race use 
but doesn't say what these negative properties are.
  A couple of manufacturers say the product has improved since they started 
manufacturing it but haven't said why.  Only one has firmly emphasised the 
need to have new seals AND to flush the pipes out with THEIR cleaning fluid 
before use.
  There has been no replies from seal manufacturers as yet and the change 
over of rubber types for seals could be playing a part in this.

  As far as I am concerned we are back in the trenches, there are both for 
and against camps, all have their own axe to grind.

  Guy R Day