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
>>>> ------------------------
>>>>
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>>> ------------------------
>>>
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>>>
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>>
>>
>> --
>> Kent
>> 1960 Bugeye
>> 1983 Garage full of spridget parts!
>> 2017 Home built shed full of excess spridget parts!!!
>>
>>
>> ------------------------
>>
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>>
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>
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