[Healeys] Silicone DOT5 brakefluid for the 100

[Tom Felts]

Could someone tell me the chemical products that are made by mixing the two that supposedly reacts with the rubber seals?  To me it either reacts or it doesn't, and it did not with mine.  Now--if it takes 10 years, I still have a couple to go. Maybe I haven't waited long enough.

tom

---- Oudesluys <coudesluijs at chello.nl> wrote: 

=============
Tom,
You should never fill up with DOT5 if you previously used DOT3 or 4. You 
run the very serious risk that the seals will perish and the system will 
leak like a sieve. Thus you have to replace all the seals and hoses (and 
clean out the rest of the system of course). This goes for any car.
You may have been extremely lucky.
Kees Oudesluijs

Tom Felts schreef:
> ???????   Why is this true for the 100 and not other versions?  What is different about the rubber components in the 100?  I put DOT 5 in my BJ8 and E-Type years ago and did nothing beforehand with the components.  Not a leak or brake problem since.
>
> tom
>
> ---- Oudesluys <coudesluijs at chello.nl> wrote: 
>
> =============
> Replace all rubber parts. Effectively rebuilt all your wheel cilinders, 
> callipers, master brake cilinder using new seals and renew/replace the 
> rubber brake hoses, preferrably with Teflon SS braiding items from eg 
> Goodridge.
> Kees Oudesluijs
> NL