Originally Posted By: river_rat
No combo valve on this one...you can see the bypass valve at the far end of the center tube. I wonder why some NAPA Silvers and their clones use the new combo valves and some don't?
I also saw what 'appears' to be a type dome end bypass in the pics. But, then I went to the RA and it indicates a combo valve design. Also, I am not aware that 'any' these economy Wix made filters 'ever' used a dome end bypass. You may well be correct about dome end bypass here, but I because of those reasons I would like to see a dissection of this AE for confirmation before say this one has a dome end bypass. I would like to see what the dome side of the end cap. Just me.
As for the new Napa Silvers, the
the cut open view leaves the impression (to me) that 'all' the Silver line will use a combo valve (green in video) design. Are you saying that you have seen some appplications of the new Silver that use the Wix design separate metal thread end bypass? Or, are you saying you've seen some that indicate they too may have gone to a separate dome end bypass. Again, as with the AE but moreso because of the Napa label, the latter would be very surprising because I've never seen a dome end bypass design on a Wix or Wix 'made for' design.
Still think you the man r_r, but for the reasons mentioned I'm from Missouri on this one.
Originally Posted By: zyxelenator
I just checked P1 and Tough Guard, they both have valve on far end. Maybe engine specific requirement?
I don't think you can infer anything from that. Unlike Wix/Wix made fors with thread end bypass, Purolator and Fram use dome end bypass in all their filters that spec a bypass.
