I’d say it took a fair bit of effort to pull apart. The bypass sits deeper in the end cap vs the Endurance too I believe. I’ll have a couple Endurances to test in a couple months.
Good idea! I probably should to see if R&P is liberating some piston deposits. Oil is definitely darker than normal if that indicates anything.
I like pulling media apart as in case of bro’s 68’ Caddy oil filter to see the metal flecks it trapped.
The FE7317 also took a "fair bit" to pull apart too. IDK about any depth difference. But again, the differences in bypass seal area finish obvious. Perhaps your FE be different than mine and WCW, or.....
As I mentioned in the other thread, if the leaf spring metal is formed correctly in the area where it seals on the end cap (ie, a flat and smooth surface) then it should not have any air gaps, just as you've found with this example.
I don't think there is any real seal on the sides of the center tube hole because those 4 large ridges that stick out will prevent the leaf spring from sealing. Those ridges make an interference fit to make the leaf spring fit tight into the center tube - but doesn't make a real seal. The only real seal area is around the top ridge (your red circle on the right).I can see two areas that seal the bypass valve leaf spring all the way around. One place deep in the end cap and the other on the top “bubble”.
I agree. Fit and finish are excellent. No movement at all at the interface as well.
Great! Thanks for posting the pics of the Titanium, looking forward to seeing the inside of the Endurances that you are running now.
So the Titanium is not a Champion product? Do we know who makes them? You think the poor showing of the Champion products in the other thread was just a fluke? As I mentioned I've had better particle count results with Endurance than Amsoil EaO, both Champion products.
Looking at the c&p’s here shows lots of waves and a few tears.
I'll have to look for those. Do you happen to remember if the center tube had louvers or holes?
