This is a multi-part message in MIME format.
--===============3736620029007109627==
boundary="------------90A0E3D6CE6F740A44769375"
This is a multi-part message in MIME format.
--------------90A0E3D6CE6F740A44769375
Content-Transfer-Encoding: 7bit
This is often when the rear wheel pistons have to move too far to
contact the drum on the first pedal push.. Check that your rear shoes
are not worn or not properly adjusted.
daveP
On 7/2/2016 12:48 PM, Roger Grace wrote:
>
> At my wits end with this problem ...
>
> The brakes on my BJ8 have always been hard and bit well with little
> pedal movement.
>
> Changed out the front callipers (to 4 pot) and the problems started.
>
> After repeated bleeding on first push,pedal went to the floor.
>
> After 2/3 pumps the pedal came right up and held.After about 30 secs
> of no pressure on pedal goes to the floor again.
>
> Pistons are all in contact with pads and pads with disc; all looks
> good at callipers.
>
> Suspecting a faulty MC changed it out.
>
> Primed the new MC with fluid prior to installing.
>
> Same story after another 1.5 pints of DOT 4 fluid focusing mainly on
> bleeding front callipers and booster (new); also bled rear drums.
>
> Pedal still goes to the floor on first pump and comes up after pumping
> as before.
>
> No visible leaks and inlet from reservoir shows no leaks: tapped
> callipers with mallet to dislodge any air pockets.
>
> I am using the one man bleed system a with clear tube into a container
> and close the bleeder valve with no visible air at nipple and full
> tube of fluid to container. BTW also changed clutch MC at same time
> and no problems with bleeding etc.
>
> Have now run about 1.5 pints of fluid through the new MC - perhaps am
> being too impatient ?
>
> But no evidence of any air after about 0.5 pint. Typically how much
> fluid is required to clear air from MC and lines ?
>
> Now sort or suspecting the inlet to MC from reservoir but for life of
> me cannot see how air can get in with no visible fluid leaks,
>
> Any ideas from the more AH experienced listers appreciated.
>
> rg
>
>
>
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation $12.75
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
>
> Healeys@autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/frogeye@porterscustom.com
>
--
Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM
87107 505-352-1378 Go HERE: my world www.porterbikes.com/
--------------90A0E3D6CE6F740A44769375
Content-Transfer-Encoding: 8bit
<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>This is often when the rear wheel pistons have to move too far to
contact the drum on the first pedal push.. Check that your rear
shoes are not worn or not properly adjusted.</p>
<p>daveP<br>
</p>
<br>
<div class="moz-cite-prefix">On 7/2/2016 12:48 PM, Roger Grace
wrote:<br>
</div>
<blockquote
cite="mid:C45997DD4B7440B4B3E0A3BEBDF34E5D@WINDOWST93OFP9"
type="cite">
<div dir="ltr">
<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS';
COLOR: #000000">
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">At
my wits end with this problem <span
style="mso-spacerun: yes"> </span>...</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">The
brakes on my BJ8 have always been hard and bit well with
little pedal movement.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Changed
<span style="mso-spacerun: yes"> </span>out the front
callipers (to 4 pot) and the problems started.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">After
repeated bleeding on first push,<span
style="mso-spacerun: yes"> </span>pedal went to the
floor.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">After
2/3 pumps the pedal came right up and held.<span
style="mso-spacerun: yes"> </span>After about 30
secs of no pressure on pedal <span style="mso-spacerun:
yes"> </span>goes to the floor again.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Pistons
are all in contact with pads and pads with disc; all
looks good at callipers.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Suspecting
a faulty MC changed it out.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Primed
the new MC with fluid prior to installing.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Same
story after another 1.5 pints of DOT 4 fluid focusing
mainly on bleeding front callipers and booster (new); <span
style="mso-spacerun: yes"> </span>also bled rear
drums.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Pedal
still goes to the floor on first pump and comes up after
pumping as before.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">No
visible leaks and inlet from reservoir shows no leaks:
tapped callipers with mallet to dislodge any air
pockets.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">I
am using the one man bleed system a with clear tube into
a container and close the bleeder valve <span
style="mso-spacerun: yes"> </span>with no visible air
at nipple and full tube of fluid to container. BTW also
changed clutch MC at same time and no problems with
bleeding etc.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Have
now run about 1.5 pints of fluid through the new MC - <span
style="mso-spacerun: yes"> </span>perhaps am being <span
style="mso-spacerun: yes"> </span>too impatient ? </font><span
style="mso-spacerun: yes"><font style="FONT-SIZE:
11pt"> </font></span></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">But
no evidence of any air after about 0.5 pint. Typically
how much fluid is required to clear air from MC and
lines ?</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Now
sort or suspecting the inlet to MC from reservoir but
for life of me cannot see how air can get in with no
visible fluid leaks,</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE: 11pt">Any
ideas from the more AH experienced listers
appreciated.</font></font></p>
<p class="MsoNormal" style="MARGIN: 0cm 0cm 6pt; LINE-HEIGHT:
13pt"><font face="Calibri"><font style="FONT-SIZE:
11pt">rg</font></font></p>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Archive: <a class="moz-txt-link-freetext"
href="http://www.team.net/archive";>http://www.team.net/archive</a>
Forums: <a class="moz-txt-link-freetext"
href="http://www.team.net/forums";>http://www.team.net/forums</a>
<a class="moz-txt-link-abbreviated"
href="mailto:Healeys@autox.team.net";>Healeys@autox.team.net</a>
<a class="moz-txt-link-freetext"
href="http://autox.team.net/mailman/listinfo/healeys";>http://autox.team.net/mailman/listinfo/healeys</a>
</pre>
</blockquote>
<br>
<div class="moz-signature">-- <br>
Dave Porter
Porter Custom Bicycles
2909 Arno St. NE
Albuquerque, NM 87107
505-352-1378
Go HERE: my world <a class="moz-txt-link-abbreviated"
href="http://www.porterbikes.com/";>www.porterbikes.com/</a>
</div>
</body>
</html>
--------------90A0E3D6CE6F740A44769375--
--===============3736620029007109627==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Archive: http://www.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============3736620029007109627==--
|