How does the standard Wix ADBV operate?

[goodtimes]

I have been looking for some info, don't see. I know the Purolator, Denso, and I think Fram, have a space above the ADBV for the valve to open into. The element is held rigidly against the baseplate always. This makes for easy flow at low pressure, and it has been shown by a member that the Puro also seals well.
Does any filter use oil pressure to move the whole element up, pushing the spring, so the ADBV can open? I have found one brand that operates this way, and it looks to be Wix or Champ made.

 

[Sayjac]

The Wix/Napa Gold adbv functions the same as all others. They are pressed up against the baseplate using the dome coil spring which holds the element and the adbv firmly in place and sealing the baseplate inlet holes.

What majority Wix/Napa Gold also have however is their traditional thread end bypass which consists of an internal metal coil spring and a nitrile seal portion. The pics below show the two different parts. The orange/red color gasket shown in the first pic sitting atop Wix thread end bypass.

The second pic shows Wix/NG metal thread end bypass. The coil spring can be seen at the bottom and the black nitrile portion of the bypass can also be seen.

Silcone adbv atop the thread end bypass.

Wix' traditional thread bypass with internal coil spring. Adbv can be seen in left background.

 

[Yah-Tah-Hey]

ADBV works exactly the same as every other oil filter. The spring in the dome holds the entire assembly against the base plate.ADBV seals off oil inlet holes but will allow oil flow into filter when engine is running. Thank you sayjac. I would like to see Wix. redesign that by- pass valve arrangement. Make it integral with the top cap.Or put a seal on the by- pass valve flange.. That metal to metal interface looks iffy to me. Very nice looking filter though.

 

[Sayjac]

I see some mention the metal on metal occasionally, but I can attest to the pressure exerted by the dome coil spring on the element/bypass/abdv assembly. When cutting it open there is a force that pushes the internals out before finished cutting. And the area covered by the bypass to endcap mesh is relatively speaking quite large. Much larger in my observation than the relatively small area Fram uses to cover the centertube on the fiber endcap offerings.

That and Wix been using this design for quite some time and I trust they have thoroughly tested it. My .02

 

[goodtimes]

I see the gap above the ADBV on the one shown, but there is no baseplate so the assembly can be pressed together to see what is really happening, as it exists all together. I have seen one filter where the base is slightly concave inside, so the ADBV actually presses up against the end cap. So the whole element must move up against the coil spring for the valve to open. It may just be on that one particular brand and model, but I don't like it. I want only the ADBV flap to have to move.

 

[Sayjac]

You've had it thoroughly explained, illustrated and confirmed that the topic'd Wix/NG adbv functions exactly the same as others. The adbv presses firmly against the baseplate when assembled. Anyone that has used a Wix/NG (or any oil filter) knows this is the case and doesn't need to see the adbv pressed against the baseplate. Could post another pic, but clearly now pointless.

And never seen the nebulous brand where adbv functions by the entire element moving up and down to control the adbv function opening and closing. If and when an example is posted it would be a first. Until then nothing more than hearsay. But as that isn't the topic, immaterial. You are free to believe what you will though.

Carry on.

 

[goodtimes]

This is what I am referring to: The Bosch Premium 3330 and Denso have a lot of space when all is together, the other one has no space. I wonder if others are like the green one is what I want to know. I also show the baseplate of the one I don't like, Champ made, or Wix? I mangled the two piece base of the Bosch.

 

[goodtimes]

quote=sayjac]You've had it thoroughly explained, illustrated and confirmed that the topic'd Wix/NG adbv functions exactly the same as others. The adbv presses firmly against the baseplate when assembled. Anyone that has used a Wix/NG (or any oil filter) knows this is the case and doesn't need to see the adbv pressed against the baseplate. Could post another pic, but clearly now pointless.

And never seen the nebulous brand where adbv functions by the entire element moving up and down to control the adbv function opening and closing. If and when an example is posted it would be a first. Until then nothing more than hearsay. But as that isn't the topic, immaterial. You are free to believe what you will though.

Carry on.[/quote]
Originally Posted By: sayjac
You've had it thoroughly explained, illustrated and confirmed that the topic'd Wix/NG adbv functions exactly the same as others. The adbv presses firmly against the baseplate when assembled. Anyone that has used a Wix/NG (or any oil filter) knows this is the case and doesn't need to see the adbv pressed against the baseplate. Could post another pic, but clearly now pointless.

And never seen the nebulous brand where adbv functions by the entire element moving up and down to control the adbv function opening and closing. If and when an example is posted it would be a first. Until then nothing more than hearsay. But as that isn't the topic, immaterial. You are free to believe what you will though.

Carry on.

Only the center of the ADBV is supposed to press on the baseplate, or the whole element must move up. It isn't about personal attacks, for me anyway, it is about what you see in the pictures. I ask honest questions and this is what happens. I wanted to know if other standard, which is what I asked first, standard filters work with this closed system. Because I don't want to buy one.

 

[goodtimes]

"Only the center of the ADBV is supposed to press on the baseplate"

I mean the center part presses and seals on the baseplate, the other part covers and presses over the holes but should be free to move. Obviously all of the ADBV presses on the baseplate to some degree. Funny, when facts are shown that were asked for, which conflict with rigid ideas, crickets.

 

[KCJeep]

I don't even understand the point you are trying to make or why you are obsessing over what I think you are...I can't be the only one.

 

[goodtimes]

Originally Posted By: KCJeep
I don't even understand the point you are trying to make or why you are obsessing over what I think you are...I can't be the only one.

Everyone coming here is obsessing to some degree. The second picture from the bottom shows what I mean. I don't know how it can be clearer. This filter is assembled in the can this way. I thought this forum was about oil filters, that's an oil filter. I am not going to use that kind of filter, and wanted to know if the maker, wix or champ or whoever, make others like this, and if they do work.

 

[crazyoildude]

Wix makes great filters but here in NJ they are not so easy to find in retail Stores at a good price.. My filter distributor always says if wix goes into wal mart and wal mart sells them for less they would be the number one selling oil filter hands down!

 

[Brian Barnhart]

Among the several brands of oil filters I've cut open, I've never seen one that "sandwiched" the ADBV in the manner of the green one pictured. When assembled the Fram, Wix, Purolator, and various Champion oil filters all leave gaps "behind" the ADBV. Might you be able to post some photos of the individual components of the green filter?

 

[goodtimes]

These are pertinent pics of the ADBV and can construction. Note how short the collar on the end cap is, which causes the parts to sandwich together as you describe it. There is very little stand off distance from the base plate, which is also concave. The only way it can work is if oil pressure pushes the whole element up against the coil spring. Looks like something wrong with the design on this particular model. Maybe they wanted to keep the element as long as possible and didn't check this fact I show here. I'm glad I did not install it, which I was going to do. It would be nice to see standard wix or champ filters, cut open and the baseplate to adbv area seen, and I refer back to my original post questions which got no real answer.

 

[goodtimes]

The last reply did say wix and champ filters also leave a gap around the adbv, which was a real answer, sorry. It would be nice though to see assembled filters like I show, with actual baseplates mounted and pressed, it is an important part of filter construction that shows oil flow. I may get a wix and cut it open for my own knowledge but about had enough of the quick to call others liar mentality. Seems a lot of that in the world today.

 

[Brian Barnhart]

The construction of the green filter does seem odd to me. As you say, the extension (collar) on the media endcap seems shorter than needed to provide ample ADBV space given the baseplate design. Of course, testing or actual use would establish the performance of the design. If the ADBV gap is too small, the pressure drop across the filter would be greater than normal. This would show up on a vehicle's oil pressure gauge as lower than normal oil pressure.

Based on appearance, I would probably choose a different filter. But appearances can be deceiving.

 

[Yah-Tah-Hey]

PSWTC

 

[goodtimes]

Originally Posted By: Brian Barnhart
The construction of the green filter does seem odd to me. As you say, the extension (collar) on the media endcap seems shorter than needed to provide ample ADBV space given the baseplate design. Of course, testing or actual use would establish the performance of the design. If the ADBV gap is too small, the pressure drop across the filter would be greater than normal. This would show up on a vehicle's oil pressure gauge as lower than normal oil pressure.

Based on appearance, I would probably choose a different filter. But appearances can be deceiving.

The green filter ADBV presses flat as my pic shows, it isn't clamped hard. No gap, none at all. When put into the can assembled, the ADBV is flat like that about a 1/4 " before the assembly is all the way in. Using a sharpie to press inside to move the element, when the element moves up, the center seal also is broken, so oil would bypass into the outlet. Yes, appearances can be deceiving, that's why I kept the name of the filter off the first pictures. I tried to ask an honest question, but see some here are more interested in arguing than looking at facts. So I probably will later on today take all my pics down from my threads and led the "experts" keep on their program of arguing. It isn't worth it, I'll just buy the filters I choose and analyze them myself, and keep it to myself.