Purolator Tech TL14610 bypass flashlight test

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So apparently the flaw is not the specific to Endurance bypass design. I had some Purolator Techs sitting around the garage and I performed the flashlight test. I'm not sure how reliable of a test the flashlight test really is?!

This Purolator Tech is TL14610 which fits the same application as Fram Endurance 7317 which is being discussed in the other thread.
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Did you try actuating the bypass valve a few times to see if it would seat and seal better? All metal-to-metal seals are susceptible to leaking to some degree. I like bypass valves that are made of something softer than metal so they seal better.
 
Did you try actuating the bypass valve a few times to see if it would seat and seal better? All metal-to-metal seals are susceptible to leaking to some degree. I like bypass valves that are made of something softer than metal so they seal better.
I just cut open the filter and put the flashlight through in the dark area and uploaded the results.
 
I just cut open the filter and put the flashlight through in the dark area and uploaded the results.
Try pushing straight down on the center rivet a bunch of times to see if it seals up better.
 
I just did a light test on a Fram OG Ultra, and there was zero light leakage seen from the leaf spring seal, or from the nylon poppet bypass valve. So not all bypass valves leak light. The Fram style bypass valve itself seals well from what I'm seeing.
 
I just did a light test on a Fram OG Ultra, and there was zero light leakage seen from the leaf spring seal, or from the nylon poppet bypass valve. So not all bypass valves leak light. The Fram style bypass valve itself seals well from what I'm seeing.
But if you do a random sampling of let's say 100 filters probably more than 30 to 40% of them will have this leakage issue. Maybe I'm wrong but that's what my thinking is. That means 30 to 40% off the filters out in the market are garbage?! That's a wake up call I suppose
 
But if you do a random sampling of let's say 100 filters probably more than 30 to 40% of them will have this leakage issue. Maybe I'm wrong but that's what my thinking is. That means 30 to 40% off the filters out in the market are garbage?! That's a wake up call I suppose
I don't think anyone could put a decent estimate on that. There are so many different designs out there. But any filter that has a metal-on-metal seal anywhere in the system is susceptible to leakage. A metal-to- metal seal needs to be very flat and smooth to work well. Filters with fiber end caps and bypass valves that are not made of metal-on-metal will have much less chance of leaking dirty oil past the media.
 
Thanks for testing!! I’ve never inspected that type of bypass valve for how it functions. Appears to be a faulty bypass valve imo. Put some oil on it to see if it leaks.

@hrv they don’t all leak.

When Accent ISO tested he found a faulty bypass if I remember correctly. It did effect efficiency in his testing.
 
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So apparently the flaw is not the specific to Endurance bypass design. I had some Purolator Techs sitting around the garage and I performed the flashlight test. I'm not sure how reliable of a test the flashlight test really is?!

This Purolator Tech is TL14610 which fits the same application as Fram Endurance 7317 which is being discussed in the other thread.
View attachment 238971View attachment 238972View attachment 238973
Would the compression against the leaf spring when the can is one piece keep tension on the bypass valve.
 
I love these voodoo tests, Fram, maybe you are ok after all. Tearolators suck.

What we need is a good ole LSJ jr video to settle this with the truth.
Yup. I gave up on m+h made filters years ago due to QC problems.

Torn media
Closed louvers
Wavy pleats
Leaking bypass on Accent testing
 
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Likely because it was made in a plant in some third world country... which is really unfortunate.

These used to be (as in earlier this year) $2 to $3 filters on Amazon. Now they're $5 -$6 filters on Amazon.
I paid a few years back around 2.10 for a purolator tech. Made in india decent filter though.
 
Likely because it was made in a plant in some third world country... which is really unfortunate.

These used to be (as in earlier this year) $2 to $3 filters on Amazon. Now they're $5 -$6 filters on Amazon.
I picked up a couple for the wifes Mazda when I first got it. Paid like $2.50 each. Used to be able to get a 12 pack on Walmart.com for like $24. Yeah, they have gone up in price for sure.
 
These used to be (as in earlier this year) $2 to $3 filters on Amazon. Now they're $5 -$6 filters on Amazon....,
Amazon algorithm pricing. I suspect when regular $2.40 pricing in effect, large quantity sales (possibly even resellers) then cause price to spike. Some time later it will drop again to base price, butcould take a while. Seen it follow that pattern multiple times since I first became aware of them.

As for topic, only 'pure speculation' here, possibly defective valve. Again, pure speculation.
 
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