What temperature is considered operating temperature?

[Jeep Junkie]

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[roaniecowpony]

Head up Snoqualmie pass and it'll get the oil hot.

 

[Jeep Junkie]

Got home and this is what things look like after 2 minutes of idling in my driveway.

Pennzoil Platinum Euro 0W-40

 

[Jeep Junkie]

Head up Snoqualmie pass and it'll get the oil hot.

It is rainy and windy, things are 🫣 up there

 

[roaniecowpony]

It intrigues me that there are ao many variances with filter lengths with most brands. In my area of few Pentastars compared to the college town I work in, has a stock of various brand oil filters but where there is an abundance of pentastars, few top tier options. Go figure? Dunno if the FRAM was old stock here in my town or what. I guess I can go through various oil filters with my micrometer and measure them. Not sure if sales people and managers will be happy about it. Sort of like opening a packages of briefs and measuring each waist band to verify size is correct HA!

I'm back from chonie inspections.

 

[YBABRAT]

I'm back from chonie inspections.

Wow! A man on a mission, or with too much time on their hands. Seems like in the first pix, Mobil 1 and WIX grew some... but most are within tolerances. What's up with that? Are we to mic all are filters just in case they fall near 4.90? .050 is a bit too much IMO. Like gapping plugs. Ha!

 

[roaniecowpony]

Wow! A man on a mission, or with too much time on their hands. Seems like in the first pix, Mobil 1 and WIX grew some... but most are within tolerances. What's up with that? Are we to mic all are filters just in case they fall near 4.90? .050 is a bit too much IMO. Like gapping plugs. Ha!

Yes, and yes. (mission and too much time).

I don't know what length begins to bind and twist. But below that length, that spring in the cap should absorb the variation in length.

 

[firedude]

Got home and this is what things look like after 2 minutes of idling in my driveway.

Pennzoil Platinum Euro 0W-40

That is reaching operating temp and burning things off. Nice to get trans temp up as well.
I get it can be difficult to get your daily up to temp. Depends on where you live a lot. Now that i am retired I add a few miles to every drive. Before that (and still) I kept clean oil in my engines and gear no matter the cost. Has served me well for many years and vehicles.
Most of my driving is in town with extreme heat in the summer. At times I can go around a few blocks and reach op temp.

 

[YBABRAT]

Yes, and yes. (mission and too much time).

I don't know what length begins to bind and twist. But below that length, that spring in the cap should absorb the variation in length.

That spring in the cap is part of the cap pressure bypass valve... it will send unfiltered oil back into the system if cracked open.

 

[roaniecowpony]

That spring in the cap is part of the cap pressure bypass valve... it will send unfiltered oil back into the system if cracked open.

That spring in the cap is part of the cap pressure bypass valve... it will send unfiltered oil back into the system if cracked open.

IIRC, that's not exactly how it works. The oil comes up in the housing on the outside of the filter and flows inward. There would be no force pushing up on the filter if it's clogged.

I believe the bypass is up in the cap, above the filter and is forced down toward the middle of the filter when the pressure difference between the outer chamber and the core of the filter.

 

[YBABRAT]

IIRC, that's not exactly how it works. The oil comes up in the housing on the outside of the filter and flows inward. There would be no force pushing up on the filter if it's clogged.

I believe the bypass is up in the cap, above the filter and is forced down toward the middle of the filter when the pressure difference between the outer chamber and the core of the filter.

From an ASE tech about the cap. He posted this in regards to over tightening... this is before filter twist and filter height differences were noticed. In summery the duel spring and valve setup can be pushed back (Opened up) by filter before any pressure build up to make bypass function.

 

[Jeep Junkie]

That is reaching operating temp and burning things off. Nice to get trans temp up as well.
I get it can be difficult to get your daily up to temp. Depends on where you live a lot. Now that i am retired I add a few miles to every drive. Before that (and still) I kept clean oil in my engines and gear no matter the cost. Has served me well for many years and vehicles.
Most of my driving is in town with extreme heat in the summer. At times I can go around a few blocks and reach op temp.

 

[firedude]

I'm looking into the RPM fan controller as well. Some of the replies on this thread indicate you should run oil temps in the 220-230's to "burn off" gas? Am I doing more harm than good, not letting the engine get hot with the fan controller (I currently am using Tazer JL to turn on the fan when hot)? Your thoughts?

You would be fine with the RPM controller. It was next on my list. I wanted to try a freebe first and relocated my horns. Made a difference.

 

[roaniecowpony]

From an ASE tech about the cap. He posted this in regards to over tightening... this is before filter twist and filter height differences were noticed. In summery the duel spring and valve setup can be pushed back (Opened up) by filter before any pressure build up to make bypass function.

Yes. See the large spring just seats the filter. If the pressure differential between the chamber on the outside of the filter and the core, exceeds the small springs ability to hold it, the little center valve is depressed downward and opens. The large spring is to accommodate variations in length (within its travel).

 

[YBABRAT]

Yes. See the large spring just seats the filter. If the pressure differential between the chamber on the outside of the filter and the core, exceeds the small springs ability to hold it, the little center valve is depressed downward and opens. The large spring is to accommodate variations in length (within its travel).

The large spring is to place a seal at the top flat edge of the filter. This will allow pressure to build within the inner section of the filter. If the cap is too tight or filter is too tall... twisting from spring riding and turning the filter. I don't think engineers expected it to be a problem, but how many go by the book these days?

On top of that manufacturers have become sloppy and don't think a filter needs to be checked for cap fit tolerances. To them its just a filter that goes into a housing. As for the valve and its spring. I may have to dig deep for the old thread that I got the image from. The ASE tech explained further on filter fitment and cap installation. I assume filter height can be compounded by filter tip length for the o ring seal. Maybe I am making it overly complicated with a simple filter... but .050 variance in height at the filter section, leaves question into other parts that hold the filter. Critical or not, I've seen some stupid small stuff that is overlooked until QC gets involved.

Oddly, while others point critically to oil standards, I on the other hand see replacement parts just as critical.

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