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Re: [Spridgets] Brake Bleed

To: Rick Fisk <refisk@chartermi.net>
Subject: Re: [Spridgets] Brake Bleed
From: daredelvis--- via Spridgets <spridgets@autox.team.net>
Date: Sun, 16 Jan 2022 15:48:02 -0800
Cc: Spridgets <Spridgets@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: Spridgets@autox.team.net
References: <455D6158-6796-4484-BDAF-B28AEE93427D@chartermi.net>
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I agree with Rick. The rears have to be adjusted for the system to work well=
. You need to adjust them so there is a little drag, drive it a little with s=
ome hard stops, and adjust it again.=20
Brian

> On Jan 16, 2022, at 1:46 PM, Rick Fisk via Spridgets <spridgets@autox.team=
.net> wrote:
>=20
> =EF=BB=BF
> In my experience the usual cause is rear brakes not adjusted tight enough.=
  The first press of the pedal moves the shoes away from their resting posit=
ion, but not all the way to the drum.   A quick second press of the pedal mo=
ves them even further.  A quick third press of the pedal may put the shoes i=
n contact with the drum and the pedal feels hard.  Release the pedal and the=
 shoes move all the way back to their initial resting position and you start=
 all over again when you want to use the brakes.  No air in the system and t=
he pedal feels great once you get the shoes all the way out to the drum.
>=20
> Rick
>=20
>>> On Jan 16, 2022, at 4:32 PM, Weslake1330 via Spridgets <spridgets@autox.=
team.net> wrote:
>>>=20
>> =EF=BB=BF
>> I don't mind friendly disagreements - its one of the best ways to learn! =
 Ok.  I guess hard is a relative term.  Assuming I'm wrong, and there is no a=
ir in the system what is causing the pedal to need to pump up?
>>=20
>>> On Sun, 16 Jan 2022 at 10:17, GUY DAY <grday@btinternet.com> wrote:
>>> Sorry Wes,
>>> I've got to disagree with part of your last comment. <snip> If the pedal=
 pumps up hard and absolutely stays hard there is still air in the system.<e=
nd snip>.  If the pedal stays hard there is NO air (or leaks) in the system.=
  If there is air in the system then the pedal will feel 'springy' or 'bounc=
y'.   Air will always act as a spring within a fluid system and anything aki=
n to a discerning foot will feel it. =20
>>>=20
>>>=20
>>>=20
>>> Fully agree with the rest of your post - and I've had people saying the b=
rakes are fine as the pedal very slowly sinks to the floor!.  It feels firm b=
ut the pedal sinks over a minute or so.  (If no fluid is lost there is a sea=
l leak in the m/cyl). =20
>>>=20
>>>=20
>>>=20
>>>=20
>>> Stay well,
>>>=20
>>>=20
>>>=20
>>> Guy R Day
>>>=20
>>>=20
>>>=20
>>> ------ Original Message ------
>>> From: "Weslake1330 via Spridgets" <spridgets@autox.team.net>
>>> To: "Michael MacLean" <springer.mike51@gmail.com>
>>> Cc: "Spridgets" <spridgets@autox.team.net>
>>> Sent: Sunday, 16 Jan, 22 At 09:22
>>> Subject: Re: [Spridgets] Brake Bleed
>>>=20
>>> Air can get trapped in a solid brake line and not easily find its way to=
 the slave to be bled out.  I have heard some people say that after driving t=
he car a few times the air moves about and then the system bleeds better. On=
 my Sprite I've sometimes left it a week and then come back to it and re-ble=
d it with a better result.  I'm also always resigned to using massive amount=
 of fluid and pumping it all through.  I do have s/s easy bleed nipples but s=
till use a basic bleeding tool as well.
>>>=20
>>> If the pedal pumps up hard and absolutely stays hard there is still air i=
n the system.  If it pumps up hard but won't stay absolutely hard - somethin=
g isn't quite seating correcting or you have some other sort of leak.
>>>=20
>>> Regards
>>>=20
>>>=20
>>> Daniel
>>>=20
>>>> On Sun, 16 Jan 2022 at 08:49, Michael MacLean via Spridgets <spridgets@=
autox.team.net> wrote:
>>>> You're right.  I got it backasswards.  New master with twin 3/4" bores.=
   The old one was 7/8" in one bore for the drum brakes and 3/4" bore for th=
e Datsun clutch in the other.  Rear is adjusted as best as possible.  Pity y=
ou can't get shoes arced anymore for full contact with the drum.  I will try=
 to wear them in and keep adjusting to see if that helps. =20
>>>> Mike
>>>>=20
>>>>> On Sat, Jan 15, 2022 at 9:20 PM Rick Fisk <refisk@chartermi.net> wrote=
:
>>>>> Hi Mike,
>>>>> =20
>>>>>  Front disc brakes should have a 3/4" master.  Make sure the rear drum=
s are adjusted properly.  If the rears aren't adjusted properly you quite of=
ten will have to pump the pedal to get it firm.
>>>>> =20
>>>>>  Rick
>>>>> =20
>>>>>  > On Jan 15, 2022, at 11:22 PM, Michael MacLean via Spridgets <spridg=
ets@autox.team.net> wrote:
>>>>>  >=20
>>>>>  > =EF=BB=BF
>>>>>  > The front drum brakes and master cylinder on my Bugeye were recentl=
y swapped out for disc brakes.  The old master was 3/4" bore with a 7/8" sle=
eve for the Datsun clutch.  The new master is 7/8" in both bores to actuate t=
he calipers correctly.  Installation went without a hitch and the car was bl=
ed multiple times, but for some reason the brake pedal goes down aways befor=
e it works.  You can actually pump the pedal up a bit. We can't understand i=
t.  There are no leaks and it was bled properly, butt it acts like there is s=
till air in the system.  Any ideas?
>>>>>  > Mike MacLean
>>>>>  > ------------------------
>>>>>  >=20
>>>>>  > spridgets@autox.team.net
>>>>>  >=20
>>>>>  > Donate: http://www.team.net/donate.html
>>>>>  > Suggested annual donation: $12.75
>>>>>  >=20
>>>>>  > Archive: http://www.team.net/pipermail/spridgets  http://autox.team=
.net/archive
>>>>>  >=20
>>>>>  > Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets=
/refisk@chartermi.net
>>>>> =20
>>>>> =20
>>>>  ------------------------
>>>> =20
>>>>  spridgets@autox.team.net
>>>> =20
>>>>  Donate: http://www.team.net/donate.html
>>>>  Suggested annual donation: $12.75
>>>> =20
>>>>  Archive: http://www.team.net/pipermail/spridgets  http://autox.team.ne=
t/archive
>>>> =20
>>>>  Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/we=
slake1330@gmail.com
>>>> =20
>>> =20
>>> ------------------------
>>>=20
>>>=20
>>>=20
>>> spridgets@autox.team.net
>>>=20
>>>=20
>>>=20
>>> Donate: http://www.team.net/donate.html
>>>=20
>>> Suggested annual donation: $12.75
>>>=20
>>>=20
>>>=20
>>> Archive: http://www.team.net/pipermail/spridgets  http://autox.team.net/=
archive
>>>=20
>>>=20
>>>=20
>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/grda=
y@btinternet.com
>>>=20
>> ------------------------
>>=20
>> spridgets@autox.team.net
>>=20
>> Donate: http://www.team.net/donate.html
>> Suggested annual donation: $12.75
>>=20
>> Archive: http://www.team.net/pipermail/spridgets  http://autox.team.net/a=
rchive
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/refis=
k@chartermi.net
> ------------------------
>=20
> spridgets@autox.team.net
>=20
> Donate: http://www.team.net/donate.html
> Suggested annual donation: $12.75
>=20
> Archive: http://www.team.net/pipermail/spridgets  http://autox.team.net/ar=
chive
>=20
> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/darede=
lvis@gmail.com

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr"></div><div dir=3D"ltr">I a=
gree with Rick. The rears have to be adjusted for the system to work well. Y=
ou need to adjust them so there is a little drag, drive it a little with som=
e hard stops, and adjust it again.&nbsp;</div><div dir=3D"ltr">Brian</div><d=
iv dir=3D"ltr"><br><blockquote type=3D"cite">On Jan 16, 2022, at 1:46 PM, Ri=
ck Fisk via Spridgets &lt;spridgets@autox.team.net&gt; wrote:<br><br></block=
quote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<meta http-e=
quiv=3D"content-type" content=3D"text/html; charset=3Dutf-8"><div dir=3D"ltr=
"></div><div dir=3D"ltr">In my experience the usual cause is rear brakes not=
 adjusted tight enough. &nbsp;The first press of the pedal moves the shoes a=
way from their resting position, but not all the way to the drum. &nbsp; A q=
uick second press of the pedal moves them even further. &nbsp;A quick third p=
ress of the pedal may put the shoes in contact with the drum and the pedal f=
eels hard. &nbsp;Release the pedal and the shoes move all the way back to th=
eir initial resting position and you start all over again when you want to u=
se the brakes. &nbsp;No air in the system and the pedal feels great once you=
 get the shoes all the way out to the drum.</div><div dir=3D"ltr"><br></div>=
<div dir=3D"ltr">Rick</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On=
 Jan 16, 2022, at 4:32 PM, Weslake1330 via Spridgets &lt;spridgets@autox.tea=
m.net&gt; wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div di=
r=3D"ltr">=EF=BB=BF<div dir=3D"ltr">I don't mind friendly disagreements - it=
s one of the best ways to learn!&nbsp; Ok.&nbsp; I guess hard is a relative t=
erm.&nbsp; Assuming I'm wrong, and there is no air in the system what is cau=
sing the pedal to need to pump up?</div><br><div class=3D"gmail_quote"><div d=
ir=3D"ltr" class=3D"gmail_attr">On Sun, 16 Jan 2022 at 10:17, GUY DAY &lt;<a=
 href=3D"mailto:grday@btinternet.com";>grday@btinternet.com</a>&gt; wrote:<br=
></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;b=
order-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>     <div><di=
v dir=3D"auto" style=3D"unicode-bidi:embed">Sorry Wes, <div><p>I've got to d=
isagree with part of your last comment. &lt;snip&gt; <span style=3D"white-sp=
ace:pre-wrap">If the pedal pumps up hard and absolutely stays hard there is s=
till air in the system.&lt;end snip&gt;.  </span><span style=3D"white-space:=
pre-wrap">If the pedal stays hard there is NO air (or leaks) in the system. =
 If there is air in the system then the pedal will feel 'springy' or 'bouncy=
'.   Air will always act as a spring within a fluid system and anything akin=
 to a discerning foot will feel it.  </span></p><div><p><span style=3D"white=
-space:pre-wrap"><br></span></p><p><span style=3D"white-space:pre-wrap">Full=
y agree with the rest of your post - and I've had people saying the brakes a=
re fine as the pedal very slowly sinks to the floor!.  It feels firm but the=
 pedal sinks over a minute or so.  (If no fluid is lost there is a seal leak=
 in the m/cyl).  </span></p><p><span style=3D"white-space:pre-wrap;display:i=
nline"><br></span></p><div><br></div><div><p>Stay well,</p><p><br></p><p>Guy=
 R Day</p><blockquote style=3D"margin:0px auto;padding:0px 2em;border-left:2=
px solid rgb(0,173,229);white-space:pre-wrap"><br><br>------ Original Messag=
e ------<br>From: "Weslake1330 via Spridgets" &lt;<a href=3D"mailto:spridget=
s@autox.team.net" target=3D"_blank">spridgets@autox.team.net</a>&gt;<br>To: "=
Michael MacLean" &lt;<a href=3D"mailto:springer.mike51@gmail.com"; target=3D"=
_blank">springer.mike51@gmail.com</a>&gt;<br>Cc: "Spridgets" &lt;<a href=3D"=
mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@autox.team.net<=
/a>&gt;<br>Sent: Sunday, 16 Jan, 22 At 09:22<br>Subject: Re: [Spridgets] Bra=
ke Bleed<br><br><div dir=3D"ltr">Air can get trapped in a solid brake line a=
nd not easily find its way to the slave to be bled out.  I have heard some p=
eople say that after driving the car a few times the air moves about and the=
n the system bleeds better. On my Sprite I've sometimes left it a week and t=
hen come back to it and re-bled it with a better result.  I'm also always re=
signed to using massive amount of fluid and pumping it all through.  I do ha=
ve s/s easy bleed nipples but still use a basic bleeding tool as well.<div><=
br></div><div>If the pedal pumps up hard and absolutely stays hard there is s=
till air in the system.  If it pumps up hard but won't stay absolutely hard -=
 something isn't quite seating correcting or you have some other sort of lea=
k.</div><div><br></div><div>Regards</div><div><br></div><div><br></div><div>=
Daniel</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"g=
mail_attr">On Sun, 16 Jan 2022 at 08:49, Michael MacLean via Spridgets &lt;<=
a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank"><span>spridgets=
@autox.team.net</span><span></span></a>&gt; wrote:<br></div><blockquote clas=
s=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div>You're right.  I got i=
t backasswards.  New master with twin 3/4" bores.   The old one was 7/8" in o=
ne bore for the drum brakes and 3/4" bore for the Datsun clutch in the other=
.  Rear is adjusted as best as possible.  Pity you can't get shoes arced any=
more for full contact with the drum.  I will try to wear them in and keep ad=
justing to see if that helps.  <br></div><div>Mike<br></div></div><br><div c=
lass=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Jan 15, 2=
022 at 9:20 PM Rick Fisk &lt;<a href=3D"mailto:refisk@chartermi.net"; target=3D=
"_blank"><span>refisk@chartermi.net</span><span></span></a>&gt; wrote:<br></=
div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bord=
er-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Mike,<br> <br> Front=
 disc brakes should have a 3/4" master.  Make sure the rear drums are adjust=
ed properly.  If the rears aren't adjusted properly you quite often will hav=
e to pump the pedal to get it firm.<br> <br> Rick<br> <br> &gt; On Jan 15, 2=
022, at 11:22 PM, Michael MacLean via Spridgets &lt;<a href=3D"mailto:spridg=
ets@autox.team.net" target=3D"_blank"><span>spridgets@autox.team.net</span><=
span></span></a>&gt; wrote:<br> &gt; <br> &gt; =EF=BB=BF<br> &gt; The front d=
rum brakes and master cylinder on my Bugeye were recently swapped out for di=
sc brakes.  The old master was 3/4" bore with a 7/8" sleeve for the Datsun c=
lutch.  The new master is 7/8" in both bores to actuate the calipers correct=
ly.  Installation went without a hitch and the car was bled multiple times, b=
ut for some reason the brake pedal goes down aways before it works.  You can=
 actually pump the pedal up a bit. We can't understand it.  There are no lea=
ks and it was bled properly, butt it acts like there is still air in the sys=
tem.  Any ideas?<br> &gt; Mike MacLean<br> &gt; ------------------------<br>=
 &gt; <br> &gt; <a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank=
"><span>spridgets@autox.team.net</span><span></span></a><br> &gt; <br> &gt; D=
onate: <a href=3D"http://www.team.net/donate.html"; target=3D"_blank">http://=
www.team.net/donate.html</a><br> &gt; Suggested annual donation: $12.75<br> &=
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arget=3D"_blank">http://www.team.net/pipermail/spridgets</a>  <a href=3D"htt=
p://autox.team.net/archive" target=3D"_blank">http://autox.team.net/archive<=
/a><br> &gt; <br> &gt; Unsubscribe/Manage: <a href=3D"http://autox.team.net/=
mailman/options/spridgets/refisk@chartermi.net" target=3D"_blank">http://aut=
ox.team.net/mailman/options/spridgets/refisk@chartermi.net</a><br> <br> </bl=
ockquote></div> ------------------------<br> <br> <a href=3D"mailto:spridget=
s@autox.team.net" target=3D"_blank"><span>spridgets@autox.team.net</span><sp=
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quote></div> <hr>------------------------<br>
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</blockquote></div></div></div></div></div></blockquote></div>
<span>------------------------</span><br><span></span><br><span>spridgets@au=
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