<VV> Bleeders

[Andy Clark]

You're not bursting my bubble; in fact you're wrong.
When bleeding the brake cylinder, one LOOSENS the bleeder screw, so that the
"cone-shaped end" is NOT in contact with its sealing surface. The
application of vacuum to the open end of the bleeder screw results in the
drawing of fluid and air out of the cylinder. The level of vacuum necessary
to evacuate the fluid/air mixture is more than enough to draw air in past
the bleeder screw threads.
I did say to LIGHTLY grease the bleeder screw threads. And yes, injecting
grease into the brake system is not a good thing, hence the "lightly"
admonition. Unless one is a complete idiot, no grease will get into the
fluid.
Smitty, you need to carefully re-read the post to which I was responding,
and also my response. You're way off target.
Andy Clark
1966 140/4 Monza Sedan
1966 140/4 Yenko Clone
1966 180/4 Cord 8/10 #60

----- Original Message ----- 
From: "Smitty Smith" <vairologist at verizon.net>
To: <virtualvairs at corvair.org>
Sent: Friday, January 12, 2007 8:02 PM
Subject: <VV> Bleeders


>
>
> From: "Andy Clark"
> I've mentioned this before, but for those who haven't seen it: grease the
> bleeder screw threads lightly to stop them leaking air when you use the
> vacuum pump. Now, when the system is completely bled, you won't get any
> deceptive bubbles.
> -------------------------------------------
>   Smitty says:  Hate to burst your bubble Andy.  Ho Ho I crack me up.  But
the threads of the bleeder have nothing to do with sealing.  It is the cone
shaped end on the bleeder pressing on the seat in the cylinder that does the
sealing.  Another point: any grease at all that gets adrift in a brake
system has the potential of damaging cups.