[Cut Open] Purolator P1 PL3001 4k miles

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They're still a bit wide for my taste. I've seen the assembly line, how hard would it be to add a couple bucks worth of metal guides to ensure even pleat spacing.
 
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Originally Posted By: michaelluscher
They're still a bit wide for my taste.
But here's the key ... the V-spread on the pleats is very small. It's a large V-spread that puts the side stress on the pleat due to oil flow force.
 
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Kind of an old one ... F<span style="font-weight: bold"><span style="color: #3366FF">02B04</span></span>B2 = Feb 4, 2010.
 
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Originally Posted By: Turk
Those pleats look better. No stress = no tears.
Yes, but if stress on the media = tears then I want different media. Because its always under the stress of the oil pressure.
 
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Originally Posted By: gregk24
Originally Posted By: Turk
Those pleats look better. No stress = no tears.
Yes, but if stress on the media = tears then I want different media. Because its always under the stress of the oil pressure.
Pleat configuration has a large roll in the stress seen in the media. But yes, if the media is weak then obviously there is little headroom for much stress. Purolator has found a bad combination of factors that add up in the wrong direction.
 
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Originally Posted By: ZeeOSix
Originally Posted By: michaelluscher
They're still a bit wide for my taste.
But here's the key ... the V-spread on the pleats is very small. It's a large V-spread that puts the side stress on the pleat due to oil flow force.
No metal crimp either.
 
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Originally Posted By: possum328
Originally Posted By: ZeeOSix
Originally Posted By: michaelluscher
They're still a bit wide for my taste.
But here's the key ... the V-spread on the pleats is very small. It's a large V-spread that puts the side stress on the pleat due to oil flow force.
No metal crimp either.
We have seen this same exact failure on Purolators with the metal crimped seam and also with the glued seam. IMO, the seam design doesn't really matter.
 
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The Old North State
Hallelujah, a positive P1 anecdote. Pleating looks excellent, and I agree it could have easily done the 10k especially with the road/hwy miles oci which I believe to be much easier on filter media as well as the engine. Less moisture/condensation/fuel dilution cycles which are tougher on media. But that's not intended as an excuse for the tears seen other P1's, just an observation based on other hwy oci filters posted here. Really think that if Puro would just close/narrow the pleat spacing next to the seam pleat (where tears occur) by simply spreading the spacing more evenly around the circumference of the center tube they could significantly reduce tear issue. The other solution imo would be to increase the media area adding a pleat or pleats. But I'm thinking the first suggestion would work especially in applications like this showing good media area and tight pleating away from seam pleat. My .02 Based on the look here thinking this engine is very clean. Thanks for the pics.
 
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Scruffy City
Certainly that filter looks fine... Observation/Question... why are the pleats near the seam always the wide ones, there must be something in the construction or tooling that causes it...
 
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Originally Posted By: ZeeOSix
Kind of an old one ... F02B04B2 = Feb 4, 2010.
Most of the tears have been in 2012 and 2013 production, have they not? Certainly, makes one wonder what changed...
 
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Originally Posted By: 2010_FX4
Originally Posted By: ZeeOSix
Kind of an old one ... F02B04B2 = Feb 4, 2010.
Most of the tears have been in 2012 and 2013 production, have they not? Certainly, makes one wonder what changed...
I think this was about the first reported media tear on this board, back in May 2011. This filter had a date code of F08A26D1 which is Aug 26, 2009. Link: Torn Purolator Classic L14459 Notice again how much V-spread there is on the torn pleat.
 
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