Water ingress?
Kees Oudesluijs
Paul Baker wrote:
> I posted this problem on the Spridget list, but as the problem is not
> necessarily Sprite specific, I would appreciate your thoughts on it.
>
> Last
> year I fitted new brake and clutch master cylinders and a new slave cylinder
> on my Sprite and used Castrol Response Super Dot 4, Glycol based brake fluid
> (available in the UK) in both clutch and braking systems . One year on the
> fluid in the Clutch m/c turned dark grey and very thick and slave and m/c
> rubbers failed. I replaced both Clutch m/c and slave and flushed system with
> fresh fluid. After a month with new clutch master/slave cylinders the fluid
> is turning grey again. The fluid in the brake m/c is fine. What's causing
> the fluid to change colour and go thick, are the rubber seals disintegrating
> or is the fluid oxidising the castings? And why the clutch system but not the
> brake system as the m/c's were from the same manufacturer?
>
> I called Castrol
> Tech Support and they have not heard of this problem before, but have asked
> for a sample of the fluid and old seals for analysis. I am also aware of two
> other Sprite owners having the same problems.
>
> Paul
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