[tcb] Re: Master Cylinder
- From: Steve Chamberlain <steveraychamberlain@xxxxxxxxx>
- To: tcb@xxxxxxxxxxxxx
- Date: Thu, 20 Mar 2014 11:57:36 -0500
I don't know but I've been told Yes, the fluid in the master cylinder can
leak past the piston allowing flow but no pressure. Try pumping the pedal
to see if you can build pressure & brake. If so hold the petal down and see
if it bleeds off and goes to the floor. This is internal leak that will not
show any fluid on the ground. '67 is one year only master cylinder and
expensive. If you can't rebuild it try a '74 (I think) bug master cylinder.
It is also dual reservoir but different shaft length. I am using it as is
but you can get a shim that goes on the base where it attaches to the frame
that puts the shaft at the proper distance. As I say don't take my word for
it check around.with the experts.
On Thu, Mar 20, 2014 at 11:35 AM, Ronnie <fracdogii@xxxxxxxxx> wrote:
> New wheel cylinders, hoses, shoes and steel lines. I was wondering if the
> seals failed or dried out if the fluid could squeeze by enough to give you
> some flow but not enough to give you pressure.
>
> Sent from my iPhone
>
> On Mar 20, 2014, at 11:31 AM, Theodore Reinert <theodoregreinertll@xxxxxxx>
> wrote:
>
> If your master cylinder is bad, you should be able to see brake fluid
> under the bus. I would also check all of the wheel cylinders as well. And
> all of the lines, of course.
>
> *From:* Ronnie <fracdogii@xxxxxxxxx>
> *To:* "tcb@xxxxxxxxxxxxx" <tcb@xxxxxxxxxxxxx>
> *Sent:* Thursday, March 20, 2014 11:27 AM
> *Subject:* [tcb] Master Cylinder
>
> Okay, so I'm on the home stretch on my '67 Westy and was bleeding the
> brakes. No matter how much brake fluid I ran through the system, I could
> not build up any pressure at all. Fluid was moving, just wouldn't get any
> pressure on the brakes. I think he shoes are adjusted fine, a little drag
> and e-brake works fine.
>
> Does this sound like the master cylinder is dead? The brakes sorta worked
> 15 months ago when I pushed it in the garage but nothing now.
>
> Any advice is welcome.
>
> Sent from my iPhone
>
>
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