Toyota oil filter light leak

[ZeeOSix]

Would have been better to show the side that mates with the top of filter!

You do realize that if the sealing area is all ruffled up, that BOTH sides will show the ruffles. It's impossible for one side to be all ruffled up and the other opposite side smooth.

No matter, it appears there still remains a gap in the pics I posted even with the “smooth” surfaces.

As shown many times in these leaf spring discussions and light tests, if the leaf spring is smooth there isn't really any light leakage detected. Keep digging for excuses for poorly stamped ruffled up leaf springs, lol.

 

[ZeeOSix]

BTW your pic shows
This ???

Both sides will be smooth. It's a sheet metal stamping, so if one side is smooth so is the opposite side. Show me a leaf spring that is smooth on one sided, but all ruffled up on the opposite side. You'll never find one like that.

 

[Ronn]

You do realize that if the sealing area is all ruffled up, that BOTH sides will show the ruffles. It's impossible for one side to be all ruffled up and the other opposite side smooth

From YOUR pic …Are these the “ruffles” you speak of then???

 

[Fair enough]

Ascent had his hands submerged in isopropyl alcohol anyway, he could have bubble pointed the Frams with bypass installed.
The Ultra filters Ascent tested for efficiency were with bypass valve gasket I’m assuming. Fram has the efficiency stated the same now. Different media, different bypass spring seal, they must have run new efficiency tests on the new filters. All the same, no worse than before. They even show the three filter part numbers tested.

 

[ZeeOSix]

From YOUR pic …Are these the “ruffles” you speak of then???

That leaf spring has no ruffles ... the "sealing" surface is smooth. What are you talking about?

 

[ZeeOSix]

Ascent had his hands submerged in isopropyl alcohol anyway, he could have bubble pointed the Frams with bypass installed.

Not required per the bubble point test, and the bypass valve only comes along for the bubble point test ride if it's built into the end cap. Besides, he would have to rig up some way to put the assembled leaf spring pressure on it. The leaf spring in the OG Ultra he tested didn't leak, beause if it did the ISO efficiecny wouldn't be as high as his test showed.

The Ultra filters Ascent tested for efficiency were with bypass valve gasket I’m assuming.

It was an OG Ultra, go watch his video of the filters cut open and showing the construction.

Fram has the efficiency stated the same now. Different media, different bypass spring seal, they must have run new efficiency tests on the new filters. All the same, no worse than before. They even show the three filter part numbers tested.

The new media can be just as efficient, plus the new media uses a lot more total surface area. The Ultra was changed quite awhile ago, so the ones they tested probably has smooth leaf springs - leaf spring stamping haven't been ruffled up junk for that long. Once a new design configuration is tested and verified, they don't keep randomly ISO testing filters. So if a production QA snafu happens, like ruffled up junk leaf springs make it into filters, then they don't know unless they see it and care about it. Again, a filter media would have to be 100% @ 20u, and could not have any more than 1% or less internal leakage to still make 99% @ 20u.

 

[Ronn]

That leaf spring has no ruffles ... the "sealing" surface is smooth. What are you talking about?

What is this??

 

[ZeeOSix]

What is this??

View attachment 293424

You think the leaf spring even touches the end cap where those ruffles are? Where's the logic.

By now after discussing ruffled leaf springs for months and showing dozens of bad examples, seems that you would know what part of a leaf spring that seals on the end cap, and where ruffles would matter for a good seal. This rabbit hole journey is getting even more convoluted than I could ever imagine … queue up "White Rabbit", lol.