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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
the 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-bled 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 still use a basic bleeding tool as well.
If the pedal pumps up hard and absolutely stays hard there is still 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 leak.
Regards
Daniel
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
> you 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.
> Mike
>
> On Sat, Jan 15, 2022 at 9:20 PM Rick Fisk <refisk@chartermi.net> wrote:
>
>> Hi Mike,
>>
>> Front disc brakes should have a 3/4" master. Make sure the rear drums
>> are adjusted properly. If the rears aren't adjusted properly you quite
>> often will have to pump the pedal to get it firm.
>>
>> Rick
>>
>> > On Jan 15, 2022, at 11:22 PM, Michael MacLean via Spridgets <
>> spridgets@autox.team.net> wrote:
>> >
>> > =EF=BB=BF
>> > The front drum brakes and master cylinder on my Bugeye were recently
>> swapped out for disc brakes. The old master was 3/4" bore with a 7/8"
>> sleeve for the Datsun clutch. The new master is 7/8" in both bores to
>> actuate the calipers correctly. Installation went without a hitch and t=
he
>> car was bled multiple times, but for some reason the brake pedal goes do=
wn
>> aways before it works. You can actually pump the pedal up a bit. We can=
't
>> understand it. There are no leaks and it was bled properly, butt it act=
s
>> like there is still air in the system. Any ideas?
>> > Mike MacLean
>> > ------------------------
>> >
>> > spridgets@autox.team.net
>> >
>> > Donate: http://www.team.net/donate.html
>> > Suggested annual donation: $12.75
>> >
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>> >
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>>
>> ------------------------
>
> spridgets@autox.team.net
>
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<div dir=3D"ltr">Air can get trapped in a solid brake line and not easily f=
ind its way to the slave to be bled out.=C2=A0 I have heard some people say=
that after driving the car a few times the air moves about and then the sy=
stem bleeds better. On my Sprite I've sometimes left it a week and then=
come back to it and re-bled it with a better result.=C2=A0 I'm also al=
ways resigned to using massive amount of fluid and pumping it all through.=
=C2=A0 I do have 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 stay=
s hard there is still air in the system.=C2=A0 If it pumps up hard but won&=
#39;t stay absolutely hard - something isn't quite seating correcting o=
r you have some other sort of leak.</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"gmail_attr">On Sun, 16 Jan 2022 at 08:49,=
Michael MacLean via Spridgets <<a href=3D"mailto:spridgets@autox.team.n=
et">spridgets@autox.team.net</a>> wrote:<br></div><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex"><div dir=3D"ltr"><div>You're right.=C2=A0 I=
got it backasswards.=C2=A0 New master with twin 3/4" bores.=C2=A0=C2=
=A0 The old one was 7/8" in one bore for the drum brakes and 3/4"=
bore for the Datsun clutch in the other.=C2=A0 Rear is adjusted as best as=
possible.=C2=A0 Pity you can't get shoes arced anymore for full contac=
t with the drum.=C2=A0 I will try to wear them in and keep adjusting to see=
if that helps.=C2=A0 <br></div><div>Mike<br></div></div><br><div class=3D"=
gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Jan 15, 2022 at =
9:20 PM Rick Fisk <<a href=3D"mailto:refisk@chartermi.net"; target=3D"_bl=
ank">refisk@chartermi.net</a>> wrote:<br></div><blockquote class=3D"gmai=
l_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,20=
4,204);padding-left:1ex">Hi Mike,<br>
<br>
Front disc brakes should have a 3/4" master.=C2=A0 Make sure the rear =
drums are adjusted properly.=C2=A0 If the rears aren't adjusted properl=
y you quite often will have to pump the pedal to get it firm.<br>
<br>
Rick<br>
<br>
> On Jan 15, 2022, at 11:22 PM, Michael MacLean via Spridgets <<a hre=
f=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@autox.tea=
m.net</a>> wrote:<br>
> <br>
> =EF=BB=BF<br>
> The front drum brakes and master cylinder on my Bugeye were recently s=
wapped out for disc brakes.=C2=A0 The old master was 3/4" bore with a =
7/8" sleeve for the Datsun clutch.=C2=A0 The new master is 7/8" i=
n both bores to actuate the calipers correctly.=C2=A0 Installation went wit=
hout a hitch and the car was bled multiple times, but for some reason the b=
rake pedal goes down aways before it works.=C2=A0 You can actually pump the=
pedal up a bit. We can't understand it.=C2=A0 There are no leaks and i=
t was bled properly, butt it acts like there is still air in the system.=C2=
=A0 Any ideas?<br>
> Mike MacLean<br>
> ------------------------<br>
> <br>
> <a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridget=
s@autox.team.net</a><br>
> <br>
> Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"noreferrer"=
target=3D"_blank">http://www.team.net/donate.html</a><br>
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> <br>
> Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; rel=3D"no=
referrer" target=3D"_blank">http://www.team.net/pipermail/spridgets</a>=C2=
=A0 <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" target=3D"=
_blank">http://autox.team.net/archive</a><br>
> <br>
> Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman/options/s=
pridgets/refisk@chartermi.net" rel=3D"noreferrer" target=3D"_blank">http://=
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<br>
</blockquote></div>
------------------------<br>
<br>
<a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@aut=
ox.team.net</a><br>
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et=3D"_blank">http://www.team.net/donate.html</a><br>
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Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; rel=3D"norefer=
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</blockquote></div>
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