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#609837 - 02/05/06 09:10 PM JUST GOT MY LF777 FILTER HEAD!!
Ibuiltmine-o1oo Offline


Registered: 01/18/06
Posts: 73
Loc: Gillette, WY
I got it brand new from cummins for 15.20!!
Gotta love that mine discount!The lf777 filters are 8.13 each with the Mine discount, and if you just say your from the mine, they give it to ya!
(It helps that i WORK here at cummins too!!!)

YEah bypass here i come!

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#609838 - 02/06/06 02:23 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Fitzhugh Offline


Registered: 01/23/06
Posts: 33
Loc: Texas
Just curious - I poked around and could not find the filter efficiency numbers for this. That is, I can't find any of the Beta(x)=N ratings.

Did you run across that?

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#609839 - 02/06/06 02:59 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Ibuiltmine-o1oo Offline


Registered: 01/18/06
Posts: 73
Loc: Gillette, WY
i will call fleetguard and ask the tech line...

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#609840 - 02/06/06 03:03 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Ibuiltmine-o1oo Offline


Registered: 01/18/06
Posts: 73
Loc: Gillette, WY
all fleetguard has on it is 10micron @98%

Ummmm... that kinda sux for a bypass.....


??????***?????

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#609841 - 02/06/06 03:10 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Ibuiltmine-o1oo Offline


Registered: 01/18/06
Posts: 73
Loc: Gillette, WY
the filter i use on my car (97 cutlass supreme 3.1 v6) is a stratapore spin on
they say it is
LF3554
100% @ 30 micron
73% @ 10 micron
The downgrade cell version is
95% @ 30 micron
30% @ 10 micron

So the LF777 isnt a WHOLE lot better then my original Stratapore factory spin on, huh?

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#609842 - 02/06/06 04:36 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
If you buy it in a WIX it's supposed to be 5um nominal

Part Number: 51749
UPC Number: 765809517493
Principal Application: Cummins and Detroit Diesel, John Deere (1980-93), Hitachi Excavators, IHC Trucks
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: By-Pass
Media: Paper
Height: 9.748
Outer Diameter Top: 4.661
Outer Diameter Bottom: Closed
Thread Size: 1 3/8-16
By-Pass Valve Setting-PSI: None
Beta Ratio: 2/10=19/31
Burst Pressure-PSI: 300
Max Flow Rate: 1.75 GPM
Nominal Micro Rating: 5

Gasket Diameters
Number O.D. I.D. Thk.
Attached 4.320 3.820 0.365

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#609843 - 02/06/06 07:19 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Fitzhugh Offline


Registered: 01/23/06
Posts: 33
Loc: Texas
Doesn't "nominal" usually mean beta(x)=2? That being the case, it would remove half of the 5 micron particles. Did I do that right?

But then what does that "Beta Ratio: 2/10=19/31" mean?

If it's beta(2)=19 and beta(10)=31, that would indicate removal of 95% of 2 micron and 97% of 10 micron. In which case, it's pretty good for a (relatively) cheap spin-on.

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#609844 - 02/06/06 07:10 PM Re: JUST GOT MY LF777 FILTER HEAD!!
Ibuiltmine-o1oo Offline


Registered: 01/18/06
Posts: 73
Loc: Gillette, WY
fitzhugh, are you talking the fleetguard, or the wix?

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#609845 - 02/06/06 07:46 PM Re: JUST GOT MY LF777 FILTER HEAD!!
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
The WIX stats are confusing. This should, by the beta numbers, be a 19um nominal filter (which is unlikely).

In this case I would accept the 5um figure. There's nothing bypass about a 19um filter. [I dont know]

That's 50% of the 19um and 95% of the 31um.

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#609846 - 02/07/06 03:45 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Ibuiltmine-o1oo Offline


Registered: 01/18/06
Posts: 73
Loc: Gillette, WY
Yeah thats what im thinking.

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#609847 - 02/08/06 08:22 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Fitzhugh Offline


Registered: 01/23/06
Posts: 33
Loc: Texas
The WIX numbers are very confusing. I don't think it could be as bad as beta(19 microns)=2.

That's why I was asking about the meanings. It would make sense as a bypass filter if it was beta (2 microns) = 19. My confusion was about the "5 micron nominal" rating.

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#609848 - 02/08/06 08:36 AM Re: JUST GOT MY LF777 FILTER HEAD!!
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
Fitzhugh ..if you look at any of the Wix beta specs ..they're all 2/20 ..followed by any variation of numbers. This is the 50% and 95% ratings for the second set of numbers.

It's always 2/20 = xx/yy


This one works: 51515

Beta Ratio: 2/20=19/41
Burst Pressure-PSI: 270
Max Flow Rate: 7-9 GPM
Nominal Micro Rating: 19

Many do not [I dont know]

But I can reasonably assure you that there is no bypass filter offered in a spin-on that is that fine (2um). There are hydraulic filters that are very fine, but none that are designed for engines. The Amsoil bypass is allegedly 3um absolute.

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#4706301 - 03/25/18 11:49 AM Re: JUST GOT MY LF777 FILTER HEAD!! [Re: Ibuiltmine-o1oo]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
I got my Wix 24750 bypass filter head for >$15 at Rock Auto,
and a couple of Wix 51749 filters (they are HUGE)

The flow through will be restricted to less than 2 quarts per minute,
so the filter will have a long, long, long time to catch the small stuff.

It looks like it holds at least 1/2 gallon of oil by itself....
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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