In a message dated 6/5/03 12:34:39 PM Eastern Daylight Time,
dmallin@attglobal.net writes:
> Do I need to flush the old pipes with something when changing from DOT 4
> to DOT 5?
- - - - - - - - - - - -
You should flush with alcohol, then blow compressed air through the lines.
Then fill with new fluid.
Of course, there is always the question of WHY would you want to go to DOT
5??? It doesn't stop as well as DOT 4, it allows water to pool at low points
in
the pipes (which promotes rusting), and it is more difficult to bleed
properly because of the micro bubbles it retains. Its only saving feature is
that it
doesn't eat paint, and if you are carful, that shouldn't be a problem.
Unless you are building a trailor queen that is not driven, stick with DOT 4.
(IMHO) If you MUST have DOT 5, make sure you change the fluid every year so
your brake pipes don't rust through.
Allen Hefner
Phila. Region SCCA Rally Steward
'77 MG Midget (#51 FSP)
'75 MG Midget (The Project)
'99 Ford Contour SE Sport (24v V6)
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