I've always used the same method as in Hemmings, although I don't always
have her pump up and down, but rather just press the pedal down and hold,
reminding her to follow through as the pedal drops when I open the bleeder.
If you pump up and down with the bleeder open, you'll suck in some air at
the bleeder and waste time at least. You might also aerate the fluid,
particularly with silicone (DOT5), and make it harder to bleed all the air
out.
Karl
> The Feb issue of Hemmings S&EC magazine has a brake bleeding procedure
> which
> is different than what I've always done...so maybe I've been doing it
> wrong.
>
>
> I've always opened the bleeder, had the wife gently pump the brakes a few
> times and then hold the brake pedal down while I closed the bleeder. We'd
> do
> that until there were no more air bubbles.
>
> The Hemmings procedure starts with the bleeder CLOSED, while the assistant
> gently pumps 5 or 6 times and then holds the pedal down. At this point you
> OPEN the bleeder until the fluid stops flowing and then close the bleeder.
> And repeat until there's no more air bubbles.
>
> So..........do you pump the pedal and hold the pedal down with the bleeder
> CLOSED or OPEN? Or doesn't it really matter?
>
> Thanks
> Bob
>
> Bob Danielson
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