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Linda,
The PDWA valve is only installed on cars with dual brake circuit master cyli=
nders. These masters have separate output lines - one for the front brakes a=
nd one for the rear brakes. Your master cylinder is the older single output=
type. One line from the master supplies pressure to both the front and rea=
r brakes. You don't have a PDWA valve, so ignore all this PDWA stuff. :-)
Rick
Sent from my keyboard
> On Jun 30, 2019, at 9:30 AM, Allen Hefner via Spridgets <spridgets@autox.t=
eam.net> wrote:
>=20
> Linda, if you have the PDWA (not a proportioning valve, my bad) it is loca=
ted 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.=20=
>=20
> The PDWA was originally installed on the 1275 and 1500 Spridgets. It may h=
ave been added to your car when the disks were installed, but you really hav=
e to look to see if it is there.=20
>=20
> Allen Hefner
> Norristown, PA
> Sun City Center, FL
> =20
> 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!)
>=20
>=20
>> 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?
>>=20
>> I have a "Pressure Differential Warning Assembly" not a
>> "proportioning valve" .......yes?
>> Linda
>>=20
>> 62 California Sprite "Pinky"
>>=20
>> 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 un=
ion
>> >> in the system that has a shuttle valve in it to close off a side of th=
e
>> >> system in the event of a catastrophic failure. They came about with th=
e
>> >> 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 h=
ave
>> >> 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 braki=
ng
>> >> capacity because of the other side. One front wheel and the opposite s=
ide
>> >> 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 de=
vice
>> >>> you're refering to is the PDWA - Pressure Differential Warning Assem=
bly.
>> >>> 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 a=
s
>> >>>> much vacume the gauge will read. Now ever so slightly crack the ble=
eder
>> >>>> screw and watch the gauge on the mighty vav! Just before it reads Z=
ERO
>> >>>> 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 clos=
ed
>> >>>> and if ya got one, put the rubber protective cap onto the bleeder ni=
pple
>> >>>> to keep dirt out of it and move to the next wheel.
>> >>>> When bleeding a car without a proportioning valve start with the whe=
el
>> >>>> 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 val=
ve
>> >>>> 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.c=
om
>> >>
>> >>
>> >> --
>> >> 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
>> >
>>=20
>>=20
>> --=20
>> "Pay if forward" in honor of Frank Clarici III, Spritenut
>> ------------------------
>>=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/lbc77=
mg@gmail.com
> ------------------------
>=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/refisk=
@chartermi.net
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Content-Transfer-Encoding: quoted-printable
<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Linda,<div><br></div><div>The PDWA valve is=
only installed on cars with dual brake circuit master cylinders. Thes=
e masters have separate output lines - one for the front brakes and one for t=
he rear brakes. Your master cylinder is the older single output type. &=
nbsp;One line from the master supplies pressure to both the front and rear b=
rakes. You don't have a PDWA valve, so ignore all this PDWA stuff. &nb=
sp;:-)</div><div><br></div><div>Rick<br><br><div id=3D"AppleMailSignature" d=
ir=3D"ltr">Sent from my keyboard</div><div dir=3D"ltr"><br>On Jun 30, 2019, a=
t 9:30 AM, Allen Hefner via Spridgets <<a href=3D"mailto:spridgets@autox.=
team.net">spridgets@autox.team.net</a>> wrote:<br><br></div><blockquote t=
ype=3D"cite"><div dir=3D"ltr"><div dir=3D"ltr">Linda, if you have the PDWA (=
not a proportioning valve, my bad) it is located near the master cylinder. I=
t looks like a squat "H" with brake pipes and an electrical wire. You can lo=
ok at the Moss catalog online for a drawing. <div><br></div><div>The PD=
WA 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 loo=
k to see if it is there. <br clear=3D"all"><div><div dir=3D"ltr" class=3D=
"gmail_signature" 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> </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_att=
r">On Sun, Jun 30, 2019 at 8:29 AM Linda Grunthaner via Spridgets <<a hre=
f=3D"mailto:spridgets@autox.team.net";>spridgets@autox.team.net</a>> wrote=
:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Rick what does t=
his 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 there 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 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.te=
am.net" target=3D"_blank">spridgets@autox.team.net</a>> wrote:<br>
> Also, the way the PDWA valve is plumbed on all Spridgets you get either=
both<br>
> fronts or both rears when one circuit fails. No diagonal splits o=
n 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">s=
pridgets@autox.team.net</a>> wrote:<br>
>><br>
>> Respectfully 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 of=
the<br>
>> system in the event of a catastrophic failure. They came about with=
the<br>
>> advent of disc brakes on the spridgets. The later models had a warn=
ing<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 the=
y have<br>
>> equal pressure on all ports until a sudden fluid leak and a good st=
omp on<br>
>> the brake pedal. If the pressure is low on one side of the system, t=
he<br>
>> shuttle valve is supposed to close off the bad side leaving some br=
aking<br>
>> capacity because of the other side. One front wheel and the opposit=
e 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"_blan=
k">spridgets@autox.team.net</a>> wrote:<br>
>>> Just a small nit guys, but a couple of you have mentioned=
the brake<br>
>>> "proportioning valve". No proportioning valve on a Spridg=
et. The device<br>
>>> you're refering to is the PDWA - Pressure Differential Warning&=
nbsp; Assembly.<br>
>>> It simply turns on a light to tell you if the pressure is=
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.&nbs=
p; :-)<br>
>>><br>
>>> Rick<br>
>>><br>
>>> Sent from my iPhone<br>
>>><br>
>>>> On Jun 29, 2019, at 3:05 PM, crusaderchuck55--- via Spridge=
ts<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 it=
's closed but<br>
>>>> not tight! Attach the bleeder hose and pump up t=
he mighty vav to as<br>
>>>> much vacume the gauge will read. Now ever so slightly=
crack the bleeder<br>
>>>> screw and watch the gauge on the mighty vav! Ju=
st before it reads ZERO<br>
>>>> shut the bleeder screw.<br>
>>>> Repete until you have a steady stream coming into the bleed=
er cup.<br>
>>>> Close the bleeder after the last pull of fluid and then snu=
g it closed<br>
>>>> and if ya got one, put the rubber protective cap onto the b=
leeder nipple<br>
>>>> to keep dirt out of it and move to the next wheel.<br>
>>>> When bleeding a car without a proportioning valve start wit=
h the wheel<br>
>>>> FARTHEST from the master cylinder and work your way forward=
. if it has<br>
>>>> a proportionong valve the same rule applies but you only do=
front as 1<br>
>>>> circuit and then the front as 1 circuit and if the proporti=
oning valve<br>
>>>> goes off center...recenter it.<br>
>>>> Then be certain the master cylinder is at a proper level in=
stall 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"_blan=
k">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/spridgets=
" rel=3D"noreferrer" target=3D"_blank">http://www.team.net/pipermail/spridge=
ts</a><br>
>>>> <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer=
" 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.team=
.net/mailman/options/spridgets/refisk@chartermi.net</a><br>
>>> ------------------------<br>
>>><br>
>>> <a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">s=
pridgets@autox.team.net</a><br>
>>><br>
>>> Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"nore=
ferrer" 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"; re=
l=3D"noreferrer" target=3D"_blank">http://www.team.net/pipermail/spridgets</=
a><br>
>>> <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" ta=
rget=3D"_blank">http://autox.team.net/archive</a><br>
>>><br>
>>> Unsubscribe/Manage:<br>
>>> <a href=3D"http://autox.team.net/mailman/options/spridgets/cosm=
icmag1380@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.team.=
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">sprid=
gets@autox.team.net</a><br>
>><br>
>> Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"noreferr=
er" 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><b=
r>
>> <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" 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@c=
hartermi.net" rel=3D"noreferrer" target=3D"_blank">http://autox.team.net/mai=
lman/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@auto=
x.team.net</a><br>
<br>
t=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/spridgets"; rel=3D"noreferr=
er" target=3D"_blank">http://www.team.net/pipermail/spridgets</a> <a h=
ref=3D"http://autox.team.net/archive"; rel=3D"noreferrer" target=3D"_blank">h=
ttp://autox.team.net/archive</a><br>
<br>
ts/lbc77mg@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.team=
.net/mailman/options/spridgets/lbc77mg@gmail.com</a><br>
</blockquote></div>
</div></blockquote><blockquote type=3D"cite"><div dir=3D"ltr"><span>--------=
----------------</span><br><span></span><br><span><a href=3D"mailto:spridget=
s@autox.team.net">spridgets@autox.team.net</a></span><br><span></span><br><s=
pan>Donate: <a href=3D"http://www.team.net/donate.html";>http://www.team.net/=
donate.html</a></span><br><span>Suggested annual donation: $12.75</span><br>=
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idgets">http://www.team.net/pipermail/spridgets</a> <a href=3D"http://=
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dy></html>=
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--===============4824982938149330073==--
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