Looks like another bypass seal area oil leaker.
Champ XL seal area, flashlight tested.
- Thread starter Sayjac
- Start date
Yes, modified it a tad. As noted though, same results.Thanks!! Another champ labs leaker. I guess Whip liked my in canister test
Can also just pour a little oil down the center tube. I did it on two XG2's and the oil was gone 5-7 minutes later.
Isn't this type of bypass valve design used by a significant number of manufactures? Has me wondering if this a common to all?
No badmouthing of Champ XL's is allowed since I just bought a dozen....
I'm assuming ACDelco and Supertech filters would also fail this test? I'm not sure how relevant it really is honestly..
I'm assuming ACDelco and Supertech filters would also fail this test? I'm not sure how relevant it really is honestly..
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I’ve had 2 Frams pass. OG Titanium and a PH10060. Other members have had Ultras pass as well.
It's common now to Champ Labs made filters with metal to metal separate/detachable bypass piece. Not all filters have separate detachable bypass piece, many are integrated to dome endcap. And some like OG Ultra with separate bypass piece use/used a gasket type material on dome endcap seal area.
And another note, topic XL not a 7317 application.
Are fiber end caps feeling like the safer option if using a champ build right now? Some filters are passing this test while others fail. Pretty wild times lol with metal always being touted as stouter option. So to confirm, with this type of failure oil is bypassing the filter media the full service life of the filter leaving unfiltered oil to return to your engine? Guess it may not be so bad having cartridge filters on two of my vehicles even though they are a pain to change. 
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First non 7317 or equivalent. Nice catch!
I wonder if the volume of flow that leaks past the bypass seal area is significant enough to be a concern? Any leakage is not ideal, but we would need to know what percentage leaks past the bypass seal vs total flow through the filter to know if this is really a concern.
Calculations made in another thread are 10-16%. The gap sizes on that Endurance are two .75”x.020” gaps. Which imo would be a very large media tear.
I did a thermal expansion test in the other thread. Still fails. Gaps won’t seal.
Wix made by M&H with media tears and now Champ Labs made bypass flaws with this style of bypass.
Any other recent race to the bottom trends in aftermarket filters?
Any other recent race to the bottom trends in aftermarket filters?
I was guessing less than 5%, 10-16% is not good at all. This bypass valve design is so common on today's filters, it doesn't leave very many filters left to choose from.
Give it some time … seems like a never ending down trend in manufacturering quality.Any other recent race to the bottom trends in aftermarket filters?
Yes, it's used in a lot of filters, but the leaf springs seem to be made in the Ruffles factory lately. Seems there has been a change in the sheet metal forming quality. Older examples show a smooth sealing surface instead of a highly rough rippled surface. Only way a metal-to-meal interface is going to seal well is if both sides are flat and smooth.
Seems that even the smooth leaf springs can have gaps based on this test by Whip City Wrencher:
Like WCW said, I think a gasket is required for a proper seal...
Must not be very flat then. It has to be both flat and smooth on both sides of a metal-to-metal interface/seal to work properly. Yes, a gasket is the sure solution. The OG Ultra was the bomb with the fiber sealing ring on the end cap. IMO, it might be easier to simply add a filter sealing ring that fits tight on the leaf spring before installing it in the end cap. I'm sure that could be automated in production.