Alan,
One problem with using compressed air to blow out brake lines is that
unless there is an adequate desiccator in-line, compressed air typically
carries a great deal of moisture. Because silicon based brake fluid
does not absorb moisture the way other types do, you could be
introducing a different type of contaminant into the system.
Just a thought!
Joe Curry
Alan Myers wrote:
>
> How about a turkey baster? Might need a rubber hose on the end to bring
> it down small enough for the brake pipes. I agree you should keep the
> alcohol away from the rubber parts. Does your car have the restrictor
> inline to the rear brakes? Might want to remove it before flushing. The
> manual I have says to use "methylated spirits" which I looked up in my
> British to American translation dictionary and found was plain old
> denatured alcohol solvent (get it at a hardware or paint store). Might
> want to blow a little compressed air to push out as much alcohol as
> possible before reassembling. Then be sure to "waste" plenty of the
> fresh, clean brake fluid as a final flush.
>
> Alan Myers
> San Jose, Calif.
> '62 TR4 #CT17602
>
> Philip E. Barnes wrote:
>
> > At 11:06 AM -0700 8/13/98, John Cowan wrote:
> > > I plan to flush the brake lines on my TR-4A with alcohol before
> > >reinstalling the Master Cylinder. The best approach would seem to be
> >
> > >disconnecting one line from its slave cylinder, starting from the
> > farthest
> > >most, flushing out the open line, reconnecting it and then moving on
> > to the
> > >next. Then, when all four have been done and reconnected, opening up
> > the
> > >bleed valves one at a time on the slave cylinders to flush them out,
> > too.
> > >Then, repeating the whole process with fresh brake fluid, using the
> > >reinstalled MC.
> > > The question is, what can I use initially to pump the alcohol
> > through
> > >the system? I don't want to use the MC, since I only want to put
> > brake
> > >fluid into it. Any suggestions would be appreciated.
> >
> > I'd be very reluctant to run alcohol through anything other than the
> > brake
> > pipes themselves. (Perhaps I misunderstand you.) Using a large syringe
> > to
> > force the alcohol through the pipes ought to work. I'd try to get a
> > good
> > lab-grade isopropyl or methyl-alcohol; they are very dry. Blow them
> > out
> > with compressed air when you're done.
> >
> > Phil Barnes (peb3@cornell.edu)
> > Cortland, NY (nowhere near New York City)
> > '71 TR6 CC61193L (21 year owner)
>
> --
> MZ
--
"If you can't excel with talent, triumph with effort."
-- Dave Weinbaum in National Enquirer
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