Recent Topics
335i BMW Rear Bearing: DIY?
by antonmnster
07/18/18 10:39 PM
Noise on cold start
by Spetz
07/18/18 09:23 PM
FRAM TG4967 C&P
by JohnnyJohnson
07/18/18 09:10 PM
What is the longest you have had a car battery las
by wtd
07/18/18 09:00 PM
clicking noise front driver side
by tookien
07/18/18 08:57 PM
FRAM Ultra XG7317 at 10K miles cut open
by crazy_raccoon
07/18/18 08:45 PM
Amsoil SS 0w-30 1.4L Tur 2014 Chevy Cruz 20k OCI
by SubieBlue
07/18/18 08:42 PM
Unknown Found In Woodworking Estate Box
by Recalculating
07/18/18 07:57 PM
LM-100J (C-130) Airshow
by tom slick
07/18/18 07:47 PM
Eldora truck race tonight
by thooks
07/18/18 07:43 PM
Front wheel stud on a 2000 buick century
by JimmyJohns
07/18/18 07:41 PM
Ford 6.2 diesel
by buck91
07/18/18 07:34 PM
Weber gas grills & Weber 10 yr warranty
by Donald
07/18/18 05:50 PM
2008 Honda Odyssey oil and filter?
by CARJ
07/18/18 05:11 PM
Bugatti Veyron $21k oil change???
by wemay
07/18/18 05:07 PM
Nexen N Priz AH8 vs Hankook Ventus V2 Concept
by ET16
07/18/18 04:48 PM
1999 LeSabre to 2008 Lucerne
by Duffyjr
07/18/18 04:26 PM
Engine Oil "catch cans"
by TnMike46
07/18/18 04:17 PM
2018 Audi S4 4.5k mi Factory Fill
by Vigg
07/18/18 03:46 PM
RAGBRAI 2018
by DriveHard
07/18/18 03:23 PM
Newest Members
99SK04GTX, jasonjossens4231, Eneos1, tung, spacekiller67
65511 Registered Users
Who's Online
60 registered (antonmnster, aleneros, 87sammy, aquariuscsm, AVB, Ag76, 3 invisible), 1299 Guests and 33 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65511 Members
67 Forums
287301 Topics
4792835 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4712236 - 03/31/18 10:40 AM Double By-Pass Oil Filter?
BlueOvalFitter Offline


Registered: 02/28/03
Posts: 6003
Loc: Cajun Country, La.
Before I ask my Q?, I want to state that a member here has sent me PM's calling me a moron. I guess my sense of humor has labled me as such. I apologize.
I have seen/used oil filters with a double by-pass (I'm almost certain they have a double by-pass). Why would an oil filter have a double by-pass? In case one were to fail? They are set to open at different psi?
shrug

Top
#4712250 - 03/31/18 10:52 AM Re: Double By-Pass Oil Filter? [Re: BlueOvalFitter]
Sayjac Offline


Registered: 10/13/08
Posts: 12330
Loc: The Old North State
Technically speaking there is a normal anti-drain back valve with an anti-siphon valve. The anti-siphon is in the center tube and seen near the outlet hole.

Iirc, the Ford Zetec engine specs a filter with that set up. In addition to adbv, the anti-siphon valve apparently needed to help assure oil remains in the filter.

There is also a separate dome bypass which performs it's normal function.


Edited by Sayjac (03/31/18 11:03 AM)
Edit Reason: added comment

Top
#4712285 - 03/31/18 11:26 AM Re: Double By-Pass Oil Filter? [Re: BlueOvalFitter]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
All it does (like the supertech ST8316) is keep the entire filter full of oil
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

Top
#4712316 - 03/31/18 11:50 AM Re: Double By-Pass Oil Filter? [Re: Linctex]
BlueOvalFitter Offline


Registered: 02/28/03
Posts: 6003
Loc: Cajun Country, La.
Originally Posted By: Linctex
All it does (like the supertech ST8316) is keep the entire filter full of oil

Is this aimed at oil filters that are inverted, AKA-dome end facing up, or on an angle 90* or more?

Top
#4712438 - 03/31/18 02:34 PM Re: Double By-Pass Oil Filter? [Re: BlueOvalFitter]
Eddie Offline


Registered: 12/07/03
Posts: 9652
Loc: Florida, Cape Coral
I like your questions and comments BlueOvalFitter. Some id10t is trolling you. Ed
_________________________
CX5 Touring 2.5L :-)

Top
#4712502 - 03/31/18 04:11 PM Re: Double By-Pass Oil Filter? [Re: BlueOvalFitter]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
Originally Posted By: BlueOvalFitter
Originally Posted By: Linctex
All it does (like the supertech ST8316) is keep the entire filter full of oil

Is this aimed at oil filters that are inverted, AKA-dome end facing up, or on an angle 90* or more?


That would be logical reasoning.... I think the ZETEC had them horizontal
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

Top
#4712506 - 03/31/18 04:16 PM Re: Double By-Pass Oil Filter? [Re: Linctex]
xtell Offline


Registered: 12/13/06
Posts: 521
Loc: ohio
Linctex,

I checked the Wix filter site and they list a 51315 filter. But it appears to just be a regular filter. Baldwin, Fram and Purolator do not cross reference to a ST 8316. I'm having trouble understanding how this filter works. Along with a regular anti drain back seal / valve and bypass valve, as found on most filters, is there another one way seal/valve inside the center tube that keeps the oil in the filter?

Top
#4712512 - 03/31/18 04:26 PM Re: Double By-Pass Oil Filter? [Re: xtell]
Sayjac Offline


Registered: 10/13/08
Posts: 12330
Loc: The Old North State
Originally Posted By: xtell
.....I'm having trouble understanding how this filter works. Along with a regular anti drain back seal / valve and bypass valve, as found on most filters, is there another one way seal/valve inside the center tube that keeps the oil in the filter?

Yes there is. It can be seen in slacktide bitog's linked TG 8316 c&p.

https://bobistheoilguy.com/forums/ubbthreads.php/topics/3866309/Not_bad_for_a_cardboard_Fram!_

As for the OT trolling accusation, not sure who that would be in this thread as imo and observation seems all answers put forth in an honest attempt to answer the topic question.

Top
#4712523 - 03/31/18 04:42 PM Re: Double By-Pass Oil Filter? [Re: BlueOvalFitter]
ZeeOSix Offline


Registered: 07/22/10
Posts: 17908
Loc: PNW
Yep, just a low pressure check valve in the bottom of the center tube to prevent the filter from siphoning/draining out the base center hole. Think of it as the center tube ADBV.

Apparently some engines can drain the filter from both the filter inlet and outlet.

Top
#4712606 - 03/31/18 06:26 PM Re: Double By-Pass Oil Filter? [Re: ZeeOSix]
CR94 Online   content


Registered: 03/20/16
Posts: 1180
Loc: Western S.C. since 1996
Originally Posted By: ZeeOSix
... Apparently some engines can drain the filter from both the filter inlet and outlet.
Maybe so, but I don't see how, considering that healthy ADBVs seem to require a little pressure to open them even in the forward flow direction. Maybe if the filter is mounted high there'd be enough hydrostatic pressure difference to open the valve and allow oil to siphon out. ??
_________________________
2011 Toyota Prius now at 91K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K

Top
#4712613 - 03/31/18 06:34 PM Re: Double By-Pass Oil Filter? [Re: BlueOvalFitter]
Nyogtha Offline


Registered: 10/13/14
Posts: 2337
Loc: San Antonio, TX
A friend's Audi TGDI uses an oil filter with both ADBV & anti-siphon valve to minimize delay in oil supply for the turbo. The Fram model number is PH / XG 10600, Mobil 1 is M1-404. This particular filter mounts vertically dome end up on the top side of the engine. It has a dome end BPV.


Edited by Nyogtha (03/31/18 06:39 PM)
_________________________
"No matter how paranoid you are you're not paranoid enough. Tell the truth. Reach as many people as you can with it. That's your weapon." - Susanne Modeski, aka "Holly" to The Lone Gunmen

Top