[Roadsters] 69 Roadster brake master cylinder

[Arthur Castronovo]

Hi Pat -

Thank you so much for the quick reply! Really appreciate it👍

Regards,
Art

On Sun, May 24, 2020 at 8:56 AM Pat Horne <patintexas at icloud.com> wrote:

> Art,
>
>
>
> Bench priming isn’t necessary but quite helpful.
>
>
>
> The purpose of bench bleeding is to get the air out of the master cylinder
> before you connect it up. If you put a totally empty master cylinder into
> the car then try bleeding the brakes you will pump a lot of air into the
> system which will waste a lot of fluid before all the air is out.
>
>
>
> There are two ways to bench bleed the cylinder that I know of. One is to
> use a vacuum pump to pull the fluid into the cylinder to get the air out.
> This works pretty good but the second way works better. The second way is
> to make some short lengths of brake line that screw into the master
> cylinder & are bent to have the other end of the line over the reservoir so
> that as the fluid fills the cylinder it will be put back into the reservoir
> while the air escapes. The fastest way would probably be a combination of
> the two, pump first, then the recirculating lines.
>
>
>
> The “bench bleeding” can be done either on the bench or in the car with
> the brake lines disconnected. The biggest thing to watch for is that the
> brake fluid in the reservoir doesn’t get down far enough that you pull air
> into cylinder.
>
>
>
> Peace,
>
> Pat
>
>
>
> We support Habitat for Humanity
>
> A hand UP not a hand OUT
>
>
>
> *From: *Arthur Castronovo via Datsun-roadsters
> <datsun-roadsters at autox.team.net>
> *Sent: *Sunday, May 24, 2020 10:28 AM
> *To: *datsun-roadsters at autox.team.net
> *Subject: *[Roadsters] 69 Roadster brake master cylinder
>
>
>
> Hi There. Been a while since I posted a question so I hope I’m doing this
> correctly.
>
> I’m installing a new brake master cylinder on my 69 roadster. I think a
> recall seeing an article about bench priming it first. Is this necessary?
> If so, can someone share an article or instructions. Thanks in advance for
> your help. Art
>
>
>
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