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Linda, if you have the PDWA (not a proportioning valve, my bad) it is
located near the master cylinder. It looks like a squat "H" with brake
pipes and an electrical wire. You can look at the Moss catalog online for a
drawing.
The PDWA was originally installed on the 1275 and 1500 Spridgets. It may
have been added to your car when the disks were installed, but you really
have to look to see if it is there.
Allen Hefner
Norristown, PA
Sun City Center, FL
*Current:*
2016 Subaru outback somewhere
2006 Chebbie
*Former:*
1963 Sunbeam Alpine Series III
1967 Triumph TR4A IRS
1964 VW Type I
1967 VW Type II
1967 Rover 2000TC
1977 MG Midget (Sniff!)
On Sun, Jun 30, 2019 at 8:29 AM Linda Grunthaner via Spridgets <
spridgets@autox.team.net> wrote:
> Rick what does this mean "PDWA valve is plumbed on all Spridgets" ?
> Being Pinky was upgraded to disc probably from a 1967 Spridget does
> this mean, "if my rear brakes go the front still work" so is there a
> valve somewhere in my system that shuts off the rear? If so where is
> that valve located, what does it look like?
>
> I have a "Pressure Differential Warning Assembly" not a
> "proportioning valve" .......yes?
> Linda
>
> 62 California Sprite "Pinky"
>
> On 6/29/19, Rick Fisk via Spridgets <spridgets@autox.team.net> wrote:
> > Also, the way the PDWA valve is plumbed on all Spridgets you get either
> both
> > fronts or both rears when one circuit fails. No diagonal splits on a
> > Spridget.
> >
> > Sent from my keyboard
> >
> >> On Jun 29, 2019, at 5:24 PM, CosmicMag1380 via Spridgets
> >> <spridgets@autox.team.net> wrote:
> >>
> >> Respectfully disagreeing with the terminology... There is a 5 port
> union
> >> in the system that has a shuttle valve in it to close off a side of the
> >> system in the event of a catastrophic failure. They came about with the
> >> advent of disc brakes on the spridgets. The later models had a warning
> >> light sensor built in to them. The early ones didn't have the light
> >> fitting. They are often referred to as a proportioning valve as they
> have
> >> equal pressure on all ports until a sudden fluid leak and a good stomp
> on
> >> the brake pedal. If the pressure is low on one side of the system, the
> >> shuttle valve is supposed to close off the bad side leaving some braking
> >> capacity because of the other side. One front wheel and the opposite
> side
> >> rear wheel makes up the pairs.
> >>
> >> Just my 2 cents if it means anything to anyone,
> >> Kent
> >>
> >>> On Sat, Jun 29, 2019 at 4:10 PM Rick Fisk via Spridgets
> >>> <spridgets@autox.team.net> wrote:
> >>> Just a small nit guys, but a couple of you have mentioned the brake
> >>> "proportioning valve". No proportioning valve on a Spridget. The
> device
> >>> you're refering to is the PDWA - Pressure Differential Warning
> Assembly.
> >>> It simply turns on a light to tell you if the pressure is different
> >>> between your front and rear brakes, no proportioning.
> >>>
> >>> Linda's car does not have one, so ignore all of this Linda. :-)
> >>>
> >>> Rick
> >>>
> >>> Sent from my iPhone
> >>>
> >>>> On Jun 29, 2019, at 3:05 PM, crusaderchuck55--- via Spridgets
> >>>> <spridgets@autox.team.net> wrote:
> >>>>
> >>>> Ok it works just fine...mine does.
> >>>> Everyone is seemingly skipping one valuable step.
> >>>> Loosen the bleeder screw, thrn close it just enough that it's closed
> but
> >>>> not tight! Attach the bleeder hose and pump up the mighty vav to as
> >>>> much vacume the gauge will read. Now ever so slightly crack the
> bleeder
> >>>> screw and watch the gauge on the mighty vav! Just before it reads
> ZERO
> >>>> shut the bleeder screw.
> >>>> Repete until you have a steady stream coming into the bleeder cup.
> >>>> Close the bleeder after the last pull of fluid and then snug it closed
> >>>> and if ya got one, put the rubber protective cap onto the bleeder
> nipple
> >>>> to keep dirt out of it and move to the next wheel.
> >>>> When bleeding a car without a proportioning valve start with the wheel
> >>>> FARTHEST from the master cylinder and work your way forward . if it
> has
> >>>> a proportionong valve the same rule applies but you only do front as 1
> >>>> circuit and then the front as 1 circuit and if the proportioning valve
> >>>> goes off center...recenter it.
> >>>> Then be certain the master cylinder is at a proper level install the
> >>>> master cylinder cap....
> >>>> Yer done!
> >>>> Chuck
> >>>>
> >>>> Sent from my LG Mobile
> >>>> ------------------------
> >>>>
> >>>> spridgets@autox.team.net
> >>>>
> >>>> Donate: http://www.team.net/donate.html
> >>>> Suggested annual donation: $12.75
> >>>>
> >>>> Archive: http://www.team.net/pipermail/spridgets
> >>>> http://autox.team.net/archive
> >>>>
> >>>> Unsubscribe/Manage:
> >>>> http://autox.team.net/mailman/options/spridgets/refisk@chartermi.net
> >>> ------------------------
> >>>
> >>> spridgets@autox.team.net
> >>>
> >>> Donate: http://www.team.net/donate.html
> >>> Suggested annual donation: $12.75
> >>>
> >>> Archive: http://www.team.net/pipermail/spridgets
> >>> http://autox.team.net/archive
> >>>
> >>> Unsubscribe/Manage:
> >>>
> http://autox.team.net/mailman/options/spridgets/cosmicmag1380@gmail.com
> >>
> >>
> >> --
> >> Kent
> >> 1960 Bugeye
> >> 1983 Garage full of spridget parts!
> >> 2017 Home built shed full of excess spridget parts!!!
> >>
> >>
> >> ------------------------
> >>
> >> spridgets@autox.team.net
> >>
> >> Donate: http://www.team.net/donate.html
> >> Suggested annual donation: $12.75
> >>
> >> Archive: http://www.team.net/pipermail/spridgets
> >> http://autox.team.net/archive
> >>
> >> Unsubscribe/Manage:
> >> http://autox.team.net/mailman/options/spridgets/refisk@chartermi.net
> >
>
>
> --
> "Pay if forward" in honor of Frank Clarici III, Spritenut
> ------------------------
>
> spridgets@autox.team.net
>
> Donate: http://www.team.net/donate.html
> Suggested annual donation: $12.75
>
> Archive: http://www.team.net/pipermail/spridgets
> http://autox.team.net/archive
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/spridgets/lbc77mg@gmail.com
>
--000000000000b39594058c8a844f
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">Linda, if you have the PDWA (not a proportioning valve, my=
bad) it is located near the master cylinder. It looks like a squat "H=
" with brake pipes and an electrical wire. You can look at the Moss ca=
talog online for a drawing.=C2=A0<div><br></div><div>The PDWA was originall=
y installed on the 1275 and 1500 Spridgets. It may have been added to your =
car when the disks were installed, but you really have to look to see if it=
is there.=C2=A0<br clear=3D"all"><div><div dir=3D"ltr" class=3D"gmail_sign=
ature" data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D=
"ltr"><div><div><br></div><div>Allen Hefner</div>
<div>Norristown, PA</div><div>Sun City Center, FL</div>
<div>=C2=A0</div>
<div><em>Current:</em></div>
<div>2016 Subaru outback somewhere</div><div>2006 Chebbie</div>
<div><em>Former:</em></div>
<div>1963 Sunbeam Alpine Series III</div>
<div>1967 Triumph TR4A IRS</div>
<div>1964 VW Type I</div>
<div>1967 VW Type II</div>
<div>1967 Rover 2000TC</div>
<div>1977 MG Midget (Sniff!)</div></div></div></div></div></div></div><br><=
/div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_a=
ttr">On Sun, Jun 30, 2019 at 8:29 AM Linda Grunthaner via Spridgets <<a =
href=3D"mailto:spridgets@autox.team.net";>spridgets@autox.team.net</a>> w=
rote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0p=
x 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Rick what =
does this mean "PDWA valve is plumbed on all Spridgets" ?<br>
Being Pinky was upgraded to disc probably from a 1967 Spridget does<br>
this mean, "if my rear brakes go the front still work" so is ther=
e a<br>
valve somewhere in my system that shuts off the rear? If so where is<br>
that valve located, what does it look like?<br>
<br>
I have a "Pressure Differential Warning=C2=A0 Assembly" not a<br>
"proportioning valve" .......yes?<br>
Linda<br>
<br>
62 California Sprite "Pinky"<br>
<br>
On 6/29/19, Rick Fisk via Spridgets <<a href=3D"mailto:spridgets@autox.t=
eam.net" target=3D"_blank">spridgets@autox.team.net</a>> wrote:<br>
> Also, the way the PDWA valve is plumbed on all Spridgets you get eithe=
r both<br>
> fronts or both rears when one circuit fails.=C2=A0 No diagonal splits =
on a<br>
> Spridget.<br>
><br>
> Sent from my keyboard<br>
><br>
>> On Jun 29, 2019, at 5:24 PM, CosmicMag1380 via Spridgets<br>
>> <<a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">=
spridgets@autox.team.net</a>> wrote:<br>
>><br>
>> Respectfully=C2=A0 disagreeing with the terminology... There is a =
5 port union<br>
>> in the system that has a shuttle valve in it to close off a side o=
f the<br>
>> system in the event of a catastrophic failure. They came about wit=
h the<br>
>> advent of disc brakes on the spridgets. The later models had a war=
ning<br>
>> light sensor built in to them. The early ones didn't have the =
light<br>
>> fitting. They are often referred to as a proportioning valve as th=
ey have<br>
>> equal pressure on all ports until a sudden fluid leak and a good s=
tomp on<br>
>> the brake pedal. If the pressure is low on one side of the system,=
the<br>
>> shuttle valve is supposed to close off the bad side leaving some b=
raking<br>
>> capacity because of the other side. One front wheel and the opposi=
te side<br>
>> rear wheel makes up the pairs.<br>
>><br>
>> Just my 2 cents if it means anything to anyone,<br>
>> Kent<br>
>><br>
>>> On Sat, Jun 29, 2019 at 4:10 PM Rick Fisk via Spridgets<br>
>>> <<a href=3D"mailto:spridgets@autox.team.net"; target=3D"_bla=
nk">spridgets@autox.team.net</a>> wrote:<br>
>>> Just a small nit guys,=C2=A0 but a couple of you have mentione=
d the brake<br>
>>> "proportioning valve".=C2=A0 No proportioning valve =
on a Spridget.=C2=A0 The device<br>
>>> you're refering to is the PDWA - Pressure Differential War=
ning=C2=A0 Assembly.<br>
>>>=C2=A0 It simply turns on a light to tell you if the pressure i=
s different<br>
>>> between your front and rear brakes, no proportioning.<br>
>>><br>
>>> Linda's car does not have one, so ignore all of this Linda=
.=C2=A0 =C2=A0:-)<br>
>>><br>
>>> Rick<br>
>>><br>
>>> Sent from my iPhone<br>
>>><br>
>>>> On Jun 29, 2019, at 3:05 PM, crusaderchuck55--- via Spridg=
ets<br>
>>>> <<a href=3D"mailto:spridgets@autox.team.net"; target=3D"=
_blank">spridgets@autox.team.net</a>> wrote:<br>
>>>><br>
>>>> Ok it works just fine...mine does.<br>
>>>> Everyone is seemingly skipping one valuable step.<br>
>>>> Loosen the bleeder screw, thrn close it just enough that i=
t's closed but<br>
>>>> not tight!=C2=A0 =C2=A0Attach the bleeder hose and pump up=
the mighty vav to as<br>
>>>> much vacume the gauge will read.=C2=A0 Now ever so slightl=
y crack the bleeder<br>
>>>> screw and watch the gauge on the mighty vav!=C2=A0 =C2=A0J=
ust before it reads ZERO<br>
>>>> shut the bleeder screw.<br>
>>>> Repete until you have a steady stream coming into the blee=
der cup.<br>
>>>> Close the bleeder after the last pull of fluid and then sn=
ug it closed<br>
>>>> and if ya got one, put the rubber protective cap onto the =
bleeder nipple<br>
>>>> to keep dirt out of it and move to the next wheel.<br>
>>>> When bleeding a car without a proportioning valve start wi=
th the wheel<br>
>>>> FARTHEST from the master cylinder and work your way forwar=
d .=C2=A0 if it has<br>
>>>> a proportionong valve the same rule applies but you only d=
o front as 1<br>
>>>> circuit and then the front as 1 circuit and if the proport=
ioning valve<br>
>>>> goes off center...recenter it.<br>
>>>> Then be certain the master cylinder is at a proper level i=
nstall the<br>
>>>> master cylinder cap....<br>
>>>> Yer done!<br>
>>>> Chuck<br>
>>>><br>
>>>> Sent from my LG Mobile<br>
>>>> ------------------------<br>
>>>><br>
>>>> <a href=3D"mailto:spridgets@autox.team.net"; target=3D"_bla=
nk">spridgets@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>
>>>> Suggested annual donation: $12.75<br>
>>>><br>
>>>> Archive: <a href=3D"http://www.team.net/pipermail/spridget=
s" rel=3D"noreferrer" target=3D"_blank">http://www.team.net/pipermail/sprid=
gets</a><br>
>>>> <a href=3D"http://autox.team.net/archive"; rel=3D"noreferre=
r" target=3D"_blank">http://autox.team.net/archive</a><br>
>>>><br>
>>>> Unsubscribe/Manage:<br>
>>>> <a href=3D"http://autox.team.net/mailman/options/spridgets=
/refisk@chartermi.net" rel=3D"noreferrer" target=3D"_blank">http://autox.te=
am.net/mailman/options/spridgets/refisk@chartermi.net</a><br>
>>> ------------------------<br>
>>><br>
>>> <a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">=
spridgets@autox.team.net</a><br>
>>><br>
>>> Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"nor=
eferrer" target=3D"_blank">http://www.team.net/donate.html</a><br>
>>> Suggested annual donation: $12.75<br>
>>><br>
>>> Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; r=
el=3D"noreferrer" target=3D"_blank">http://www.team.net/pipermail/spridgets=
</a><br>
>>> <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" t=
arget=3D"_blank">http://autox.team.net/archive</a><br>
>>><br>
>>> Unsubscribe/Manage:<br>
>>> <a href=3D"http://autox.team.net/mailman/options/spridgets/cos=
micmag1380@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.tea=
m.net/mailman/options/spridgets/cosmicmag1380@gmail.com</a><br>
>><br>
>><br>
>> --<br>
>> Kent<br>
>> 1960 Bugeye<br>
>> 1983 Garage full of spridget parts!<br>
>> 2017 Home built shed full of excess spridget parts!!!<br>
>><br>
>><br>
>> ------------------------<br>
>><br>
>> <a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spri=
dgets@autox.team.net</a><br>
>><br>
>> Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"norefer=
rer" target=3D"_blank">http://www.team.net/donate.html</a><br>
>> Suggested annual donation: $12.75<br>
>><br>
>> Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; rel=
=3D"noreferrer" target=3D"_blank">http://www.team.net/pipermail/spridgets</=
a><br>
>> <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" targe=
t=3D"_blank">http://autox.team.net/archive</a><br>
>><br>
>> Unsubscribe/Manage:<br>
>> <a href=3D"http://autox.team.net/mailman/options/spridgets/refisk@=
chartermi.net" rel=3D"noreferrer" target=3D"_blank">http://autox.team.net/m=
ailman/options/spridgets/refisk@chartermi.net</a><br>
><br>
<br>
<br>
-- <br>
"Pay if forward" in honor of Frank Clarici III, Spritenut<br>
------------------------<br>
<br>
<a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@aut=
ox.team.net</a><br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; rel=3D"norefer=
rer" 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>
ets/lbc77mg@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.te=
am.net/mailman/options/spridgets/lbc77mg@gmail.com</a><br>
</blockquote></div>
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spridgets@autox.team.net
Archive: http://www.team.net/pipermail/spridgets http://autox.team.net/archive
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