Date:         Thu, 12 Mar 2009 01:51:21 -0400
Reply-To:     Jonathan Farrugia <jfarrugi@UMICH.EDU>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jonathan Farrugia <jfarrugi@UMICH.EDU>
Subject:      Re: home made pressure bleeder
In-Reply-To:  <4d1b79350903111909m7089fdfcm2ff65c1f63ecc877@mail.gmail.com>
Content-Type: MULTIPART/MIXED;

another solution for the bleeder screw threads is to use anti-seize on 
them.  this serves two functions, in that it helps slow the air draw 
around the threads, and second prevents stuck bleeder screws.  you know 
those ones that just want to twist off and make you replace the wheel 
cylinder.  care needs to be taken when applying the anti-seize you only 
want a little bit.  since the bleeder screw seals on the taper at the 
bottom of the bleeder screw and you are only putting a small amount much 
higher up on the threaded portion there is little chance of it getting 
into the system.

that and if you do get a little in there most of it should flow out 
while you are bleeding the system.  i've used this method for years and it 
hasn't caused me contamination problems yet and the bleeder screws always 
open easily.

jonathan

On Wed, 11 Mar 2009, Jim Felder wrote:

> I've found that the MityVac sucks air in around the threads as
> mentioned. The solution is to use some thick grease or vaseline on the
> threads. It's a different experience then and does a satisfactory job.
> The plastic tube from the Mityvac fits over the vanagon fitting. I
> don't ever use the adaptors.
>
> Jim
>
> On Wed, Mar 11, 2009 at 8:46 PM, craig cowan <phishman068@gmail.com> wrote:
>> My experience is that i haven't even gotten far enough to suck air in from
>> the threads....
>> the adaptors never fit well enough! The threads leaking "Can" be addressed
>> in a permenant way with some teflon tape or similar sealing method for
>> future uses. I just wish these products worked as well as i hoped, because
>> they seem like a fantastic idea.
>>
>> I too have a Mightyvac.
>>
>> -Craig
>> '85GL turned WESTY
>>
>> On Wed, Mar 11, 2009 at 9:28 PM, Zeitgeist <gruengeist@gmail.com> wrote:
>>
>>> My exact experiences, as well.
>>>
>>> On Wed, Mar 11, 2009 at 6:23 PM, Allan Streib <streib@cs.indiana.edu>
>>> wrote:
>>>
>>>> Bob Mac <yakandhike@COMCAST.NET> writes:
>>>>
>>>>> Has anybody tried the vacuum bleeder sold by harbor freight. It's only
>>>>> $19.95 and seems like a simple operation. No worry about blowing seals
>>>>> and everything is done right at the wheel, except filling the
>>>>> res. Just curious
>>>>
>>>> I have not tried that one but I have tried a Mity-Vac which is
>>>> essentially the same thing.  I found it did not work very well.  It
>>>> seemed to always suck air in around the threads of the bleed screws and
>>>> not really get the air our of the system.
>>>>
>>>> But, I've never had good luck bleeding brakes on any vehicle, and the
>>>> pressure bleeder is the only thing that's ever worked well for me.
>>>>
>>>> YMMV.
>>>>
>>>> Allan
>>>> --
>>>> 1991 Vanagon GL
>>>>
>>>
>>>
>>>
>>> --
>>> Casey
>>> '87 300TD
>>> '94 100CSQ Avant
>>> '89 Bluestar
>>>
>>
>
>
>