garageman402
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I'm also beginning to think this issue is unique to the FE7317
I had thought about that. What were Whips leaking Amsoil and RP models?I'm also beginning to think this issue is unique to the FE7317
He did Fram & SuperTech 3717I had thought about that. What were Whips leaking Amsoil and RP models?
Also why it’s important for other c&p’s.
Here's the Ascent bubble point testing video. Andrew never made the 3rd video for some reason ... would have liked to see that one.
Here’s the leaking Amsoil. I do believe it crosses to 7317.He did Fram & SuperTech 3717
I think all filter bubble tests require that bypass be disabled? I’m sure there are other test that check the filter with bypass functioning?I watched it right after I posted. Glad I remembered right. Fram passes, but they use a cork in the bypass hole. It could very well be that whip city did what Fram never thought to do, or Toyota , or Champ labs. Or the old engineers at Fram knew so put a gasket on the end cap. Bring back the gasket.
Yes, Andrew mentioned it in his bubble point test video. The whole purpose of the bubble point test is to check the integrity of the media only, not the leaf spring or bypass valve seal. As mentioned previously, ISO 4548-2 is to test the actual bypass valve function. The bubble test was ran per this procedure, as discussed in Andrew's video.I think all filter bubble tests require that bypass be disabled? I’m sure there are other test that check the filter with bypass functioning?
Yes, it can only be proven with appropriate testing, not by speculation and feelings.This still begs the ever lurking question >>>
Does a minute gap in this area really materially impact overall filtration? Does having a seal make a measurable difference? Is there any downside to having one there? I can’t imagine all the manufacturers you mentioned weren’t aware of what Whip City was demonstrating? Or, at a minimum, that a gap is present.
Of course the answer is plain……
test a filter with and without a seal there. If there isn’t a version of both in the same model, then add and remove a seal in order to test both versions. If there’s improvement, is it significant AND….Is there any downside to having a seal placed there which could offset any “improvement” ?
See post above, the bubble point test is only to test the integrity of the media. It just so happened that the filter's Andrew tested with the bypass valve built into the end cap that he couldn't block off had to go along for the ride. He was still testing just for bubbles through just the media in the end.I watched it right after I posted. Glad I remembered right. Fram passes, but they use a cork in the bypass hole. It could very well be that whip city did what Fram never thought to do, or Toyota , or Champ labs. Or the old engineers at Fram knew so put a gasket on the end cap. Bring back the gasket.
Well, as I haven't "yet" seen other application light tested, suppose one can't completely rule out that possibility. That said, "my speculation" says other applications will show the same light leakage meaning areas of dirty oil bypass.I'm also beginning to think this issue is unique to the FE7317
Received this afternoonIt’s been 3 business days. So far, no response from Amsoil.
That's what I though too.It’s like they missed the point completely
First level support are not deeply trained on filtration. It is tough because I’m in AlaskaThat's what I though too.
Thanks! Being "normal" would suggest a filter in perpetual partial bypass is normal.I got a call from Amsoil from a Pete; after I requested the concern be addressed by a higher tier of support. Pete forwarded to me the wording that “this was normal” that he was given, but after I explained the change and how it would appear to bypass dirty oil with the valve “NOT” actually in bypass mode; he said it would eventually get filtered on subsequent pass throughs. Obviously, I challenged that as the root concern here and he said he would be able to better word the questions to his folks and get back to me. I asked for their folks to look at this thread and emailed it to him just now. I said we at BITOG are very interested in them looking into it further and to notice that; yes, it still shows light passing while inside the canister and that the stamping / machining of the part of the bypass that forms the seal with the end cap of the filter media to have changed…
To be continued…![]()