My '98 12 valve has always had low oil pressure (confirmed with gauge). So I decided to run this to ground. I pulled the oil pressure regulating valve and spring out of the oil filter housing last night. Looked down the bore expecting to find a complete 360 degree seat for the valve spool. What I saw was what appears to be a seat less than half of the circumference. It looks more like a stop for the valve spool than a seat. Is this what it is supposed to look like? Am I misinterpreting how the valve works, ie, there is no seat and it is more of a shuttle style valve? I have the FSM and it is no good as far as anything detailed. Anyone have any input?

"We live in a time when intelligent people are being silenced so that stupid people won't be offended".