D2 5J oil filter question newbie

Looks like you have it right with the larger hole of the disposable element up.

what I'm trying to figure out is which way the brass adapter goes in the main filter housing? And if we had it in right the first time, what oil pressure should we expect. we turned off the motor when we saw the oil pressure.

what I'm trying to figure out is which way the brass adapter goes in the main filter housing? And if we had it in right the first time, what oil pressure should we expect. we turned off the motor when we saw the oil pressure.

As you can see in this Bulletin, if you are at 70 degrees ambient with 30 weight Oil, then your uncalibrated Gauge maybe correct.
You didn't say where you are located, what weight of oil, nor did you state what engine speed you checked the pressure at.
As I remember, the Brass nipple sticking out of the Brass Screen enclosure(Pre-Filter) goes down when placed in the housing.
If no one corrects me, I'll look it up tonight to verify. (STEPHEN posted while I was typing, now I am CONFUSED!)
[attachment=40114]CAT Oil Pressure Gauge article.jpg[/attachment]

As you can see in this Bulletin, if you are at 70 degrees ambient with 30 weight Oil, then your uncalibrated Gauge maybe correct.
You didn't say where you are located, what weight of oil, nor did you state what engine speed you checked the pressure at.
As I remember, the Brass nipple sticking out of the Brass Screen enclosure(Pre-Filter) goes down when placed in the housing.
If no one corrects me, I'll look it up tonight to verify. (STEPHEN posted while I was typing, now I am CONFUSED!)
[attachment=40114]CAT Oil Pressure Gauge article.jpg[/attachment]

Possible incorrect answer, delete

we were operating in late august and the oil was measured at 3/4 throttle and at idle and it didn't change much. we were running strait 30 wt detergent oil. located in Portland Or. the brass filter dosen't look like there is two crammed together. Here is the ser number and another picture I have of the adapter.
[attachment=40118]photo.jpg[/attachment]
[attachment=40117]photo (1).jpg[/attachment]

OK I've gotta finish what I started to write before, but in the form of a question.

This filter is of the bypass type, so it does not control oil pressure regardless of how it is assembled does it? Oil flow is controlled as bypass before it gets to the filter.

On a full flow there are bypasses as part of the filter so it does not stop all oil flow, but not a bypass system right?

I started to write this as a definitive statement earlier and then realized I maybe did not have a clue so deleted it because I had to get outta here to class.

Thank you for the response.

Now that you explain it that way. I do remember there being a spring/ball bypass down below for the oil cooler and I do believe you are right in that there is a second spring/ball set down below to bypass excessive pressure. But the screen section is full flow and a small portion goes through the inner filter. You would never want unfiltered oil to circulate through the engine hence it goes through the outer screen housing.