air wiper valve not valving

[winfred]

my old valve was crudded up and i broke it taking it apart so i scored a NOS valve and this thing won't pass a fart, both motors are new and work fine off a bicycle pump hooked to the base of the windshield hose and i changed all of the rubber lines, it turns out but only blows enough to bubble some spit on the end of the pipe, i get a crap valve? tried searching but didn't come up with much besides servicing the motors

 

[winfred]

View attachment IMG_3555.MOV warning obcenity at end of video

 

[texas30cal]

Maybe it's a supply problem to the valve?

 

[rustystud]

Take the new valve apart and clean it. Sometimes they are stored with grease in them from the factory.

 

[doghead]

Are you turning it the correct direction to open it?

 

[winfred]

pipe to valve is clear as i vented the air system though it when i pulled the original valve while it was charged, shouldn't break this one now i know that little screw is inside. would've bought a hardware store valve if id known the $44 valve wasn't gonna work properly

"Are you turning it the correct direction to open it?"

doesn't work at either end of travel

 

[winfred]

valve fundamentally screwed, not sure who copied the original design but they changed the internal/hardware dimensions enough that air does not effectively pass though, the retainer screw that keeps you from completely backing the valve core out seals the intake port off, some drill and lathe work later and its now massively unreliable. gonna toss it in the fitting drawer and score a needle water valve like i should've bought from the start

 

[texas30cal]

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