[Cut Open] Purolator L12222 - Virgin (RED, Slots)

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Originally Posted By: bmwpowere36m3
Is this a "new" bypass design for Purolator? I'm used to the metal/circular/spiral mechanism on top. Does it incorporate a "rubber" sealing interface… or just plastic or metal valve.


They use two different styles of bypass valves. See the photos in this 5 year old thread of mine showing a cut open PL14459.

PL14459 Thread [Link]

One of the better photos showing the bypass valve.
DSCF6063-a.jpg
 
Originally Posted By: Noobie
I'd guess that a wider "V" pleat could distribute the pressure more evenly and with the new media it shouldn't be a problem.


Not really ... look at the wide V-spread on this one that tore. The more V-spread there is, the flatter the pleat becomes and the more it wants to bend over completely flat from the oil flowing through it, and possibly tear - especially if the media is brittle.

It's better to have tighter together pleats which will also reduce the amount of V-spread on the pleats, like the pleats are way out from the seam.

 
Originally Posted By: ZeeOSix
Originally Posted By: bmwpowere36m3
Is this a "new" bypass design for Purolator? I'm used to the metal/circular/spiral mechanism on top. Does it incorporate a "rubber" sealing interface… or just plastic or metal valve.


They use two different styles of bypass valves. See the photos in this 5 year old thread of mine showing a cut open PL14459.

PL14459 Thread [Link]

One of the better photos showing the bypass valve.
DSCF6063-a.jpg



Nice, do you know what that "orange/brown" valve is made of?
 
Originally Posted By: bmwpowere36m3
Nice, do you know what that "orange/brown" valve is made of?


Seems to be some kind of phenolic type material. It's not soft.
 
Then we will have to see if the new media holds up since the pleats on the "Red"/"Classic" seems to be the same as before.
TBH most cheap filters have wide pleats at the seam, its just that Puro's seemed to have weaker meadia than the rest. Hope they switched to a proper filter media this time.
 
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Looks like they went with a hail Mary pass and assumed different media would fix the problem but they left the same manufacturing process with the wide spacing. I'm very interested to see the results if that fixes the issue.
 
Looks good. This is clearly a message to anyone that might know about the tearing issue turned tall tale turned legendarily over exaggerated. It's a sign saying hey we've made some corrections and it's safe to ditch those pathetic pieces of fram filters too many turned to, again. Halelugia
 
Originally Posted By: Mrsandman
Looks good. This is clearly a message to anyone that might know about the tearing issue turned tall tale turned legendarily over exaggerated. It's a sign saying hey we've made some corrections and it's safe to ditch those pathetic pieces of fram filters too many turned to, again. Halelugia
It is? Do tell...
 
^^^ Just a smoke blower ... the members here (except for the Tearofans) will be the quality and reliability verifiers.
 
Yeah, please enlighten us. I have enough proof that Purolator needs to fix the "problem". Take a gander at all the torn filters I hacked
 
Originally Posted By: DuckRyder
I see Mann+Hummel customer service is up...

BTW did any one notice "AN AMERICAN Brand Since 1923"?



Yup! And it also says Mann+Hummel Purolator on the box too! How contradictory!
crackmeup2.gif
 
Still up to their deceptive habits I see. "Brand" and a "sorta" American flag on the box. Many will still be made here but the intent is obvious.

Add that to their "silence and denial" strategy of the last year or so, they can keep their filters new paints and names or not.
 
Originally Posted By: ZeeOSix
Originally Posted By: WellOiled
Does anyone know how to test the bypass valve function? Begins to open PSI and fully open PSI.


Measure the force required to make it start to open and the force it takes to keep it wide open. Then find the area of the valve surface. Using those two measurements, you can calculate the PSI required on the valve surface to open it like you did when measuring the force required.


I like the idea for filter autopsies.

That would work for dome end bypass but what about the combo valves and the one Motorcraft uses.

When I posed the question, I was thinking differential pressure gauge on the vehicle. So you would know if the filter was in bypass or not.

Thanks
 
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