[Spridgets] Bad braking

[Brian Morse]

Thank you all for the information- I appreciate it!

Mark H. I will do what you suggest- replace the hoses, drain the system and
refill with the GT-LMA.  I went with the valvoline because I couldn't find
the castrol at my LAPS.

Also I will check the MC vent and the brake light switch.

I will write back when I figure it out!

On Monday, January 20, 2014, Mark Haynes <haynes386 at netzero.net> wrote:

> Rick-He said DOT 3 and DOT 4 -NOT DOT 5, which is silicone. Castrol GT-LMA
> has ALWAYS been synthetic, but NEVER Silicone. The DOT 3 CAN cause
> deterioration of natural rubber seals, that is why we all like the GT-LMA,
> since its been used forever with natural rubber seals and has a lower
> propensity to absorb water (thus the LMA-Low Moisture Absorbance) than
> other brake fluids of the era.
> Brian, you don't have to rebuild the whole system, but keep an eye on the
> color of the brake fluid, if it starts to darken, then the DOT 3 has
> started eating the rubber seals and THEN you need to rebuild the whole
> thing. I'd flush the system, after I replace the hoses with new ones, with
> new GT-LMA.
>
> Mark Haynes
> It only goes one way-Pay it Forward
>
>
> Subject: Re: [Spridgets] Bad braking
> Message-ID: <D9F1ED86-13A3-4C0C-BA77-E640B0AD9168 at chartermi.net<javascript:;>
> >
> Content-Type: text/plain; charset="us-ascii"
>
> Yikes!  Mixing glycol based brake fluid with silicone based fluid is a
> definite bad thing.  I've heard it can cause lumps of goo in the various
> cylinders.  This could even be the cause of your brake issues.  Most likely
> it's bad hoses though.  A thorough flushing is in order.
>
> And real racers don't use silicone brake fluid as it gives you a somewhat
> spongy pedal under hard use.  Silicone "sponginess" is a good thing for
> certain applications, but not brakes.  :-)
>
> Sent from my keyboard
>
> On Jan 18, 2014, at 10:20 AM, Brian Morse <owensdad74 at gmail.com<javascript:;>>
> wrote:
>
> > Thank you all for the great info!
> >
> > I had no idea the hoses would fail in that manner- very interesting.  I
> will
> give Peter C a shout on Monday.
> >
> > And I will try my hand at searching the archives.
> >
> > After double checking the fluid I put in I see I used Valvoline dot 3
> and 4
> SYNTHETIC fluid.  I never saw that (duh).  Do I really need to tear it
> apart
> and rebuild the whole system?!?
> >
> > Bri
>
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