fram xg3614 oil filter specs?

[Tony10s]

^^^ The above post by Zee is correct. I was about to post pretty much the same thing but you were ahead of me ZeeOSix. +1

I can use either of the above filters (Wix 51348 and XG3614) interchangeably for the Ford Focus ... they are both spec'd for it.

 

[The motor guy]

I went and looked at the mobil 1 M1-103 filter that's supposed to be compatible with the 49065-7007 Kawasaki filter and it looks smaller in diameter. It has a super skinny gasket compared to the OEM filter, but I suppose it would still work. It's about 5/16th of an inch longer, so I think it would be hitting the wiring harness and melting the anti chafe tubing around it. I took an oil sample also, not exactly sure why it takes like 20 minutes to drain 2 quarts of oil out that little tube. I even loosed the fill cap so it would vent. I'd prefer it came out faster.

 

[DSparks]

 

[Astro_Guy]

Originally Posted By: ZeeOSix
What you are failing to realize is that the filter's bypass valve doesn't operate according to the engine's oil pump pressure, but rather from the pressure difference across the filter media due to flow volume and restriction level.

What you apparently fail to realize is that the delta P across a filter cannot possibly exceed the output pressure of the oil pump.

 

[DSparks]

Why not?....just means the bypass will never open....oil stills flows through the filter normally and engine does not have a clue...these engines arent sludge monsters and the filters are so oversized anyways compared to an auto engine its not gonna matter....

 

[funflyer]

Originally Posted By: DSparks
Why not?....just means the bypass will never open....oil stills flows through the filter normally and engine does not have a clue...these engines arent sludge monsters and the filters are so oversized anyways compared to an auto engine its not gonna matter....


Agreed. How much oil can these engines flow anyway? Maybe 1 GPM? if that. My mower will use a ST3614 from now on even though Kohler wants their customers to use a FF no bypass filter. Odd that they supplied the engine with a filter that has a combo valve and looked just like the old ST3614 e-core filter.

 

[DSparks]

The newish yellow and now newer black "PRO" kohler filters are a champ ecore....thats one reason why I say OPE does not need the latest and greatest super duper whooper $$$ filter...flow rate and pressure arent high enough to hurt them..and even the smaller/shorter ones are huge compared to an auto engine application.....get the cheapest thing u feel comfy with and sleep good at night....just my thoughts...

 

[ZeeOSix]

Originally Posted By: Astro_Guy
Originally Posted By: ZeeOSix
What you are failing to realize is that the filter's bypass valve doesn't operate according to the engine's oil pump pressure, but rather from the pressure difference across the filter media due to flow volume and restriction level.

What you apparently fail to realize is that the delta P across a filter cannot possibly exceed the output pressure of the oil pump.


The delta-p across the filter is not dependent on the oil pressure produced by the oil pump. The delta-p across the oil filter is only dependent on the oil flow volume, oil viscosity and flow resistance of the filter media.

If the maximum oil pressure the pump can develop is really only 12 PSI (hard to believe it's that low), and the bypass valve in the filter was set to 12 PSI, then the bypass valve would only open up if the filter was basically 100% clogged. And the pump would be operating in pressure relief mode.

What's the bypass valve setting on the OEM filter?

And you might want to re-verify what the actual max oil pressure is on this engine - I'm talking what's the oil pump's pressure relief setting. I don't believe it's only 12 PSI. Both WIX and Fram (and Mobil 1, etc, etc) wouldn't specify a filter with a 8~12 PSI bypass valve if it wasn't going to work on this engine. The 12 PSI might be what the normal oil pressure is after the filter with hot oil, but the pump output might be able to go much higher than that before it's pressure relief valve starts to operate.

 

[Astro_Guy]

Originally Posted By: ZeeOSix
The delta-p across the filter is not dependent on the oil pressure produced by the oil pump. The delta-p across the oil filter is only dependent on the oil flow volume, oil viscosity and flow resistance of the filter media.

In correct mathematical terms, the delta P across the filter is LIMITED by the maximum output pressure of the oil pump. Happy now?

 

[ZeeOSix]

Originally Posted By: Astro_Guy
Originally Posted By: ZeeOSix
The delta-p across the filter is not dependent on the oil pressure produced by the oil pump. The delta-p across the oil filter is only dependent on the oil flow volume, oil viscosity and flow resistance of the filter media.


In correct mathematical terms, the delta P across the filter is LIMITED by the maximum output pressure of the oil pump. Happy now?


There should be no instances of the delta-p across the oil filter being the same as the maximum output pressure of the oil pump unless the filter is 100% blocked and there is no oil flow going through it and the bypass valve hasn't opened up at all.

And I highly doubt the oil pump on the engine can only put out 12 PSI maximum oil pressure.

Again ... what's the bypass valve setting on the OEM oil filter?

 

[goodtimes]

My 1990's John Deere Green Machine lawn mower has a 6hp Robin engine that takes the small size 4967 oil filters, pointing base down at an angle. The oil capacity is 0.7 qts total, so I would never run larger filters on it. Somewhere in the fog of memory I remember the parts diagram showing an oil pump similar to, if not the same, as an auto oil pump. The pressure isn't related to the size of the engine or pump, at least never heard that one before. The basic way I understand it is the whole system has an flow pattern from pump to outlet holes. If the outlet holes are small, the pressure goes up, flow stays the same. If the outlet gets large like when bearing are worn, pressure goes down, flow always the same. Maybe this is too basic and the discussion is higher, I don't know. I knbow it's an escape from doing chores though.