Just verifying, the oil pressure gauge should read the same pressure at the oil sensor as it does at the port on the side of the oil pan? There should be no difference correct?

Edit--- GEN III 5.3 LM7. 2003 Tahoe motor swapped into my 2005 chevy colorado. In case that is needed.

 

There will be a pressure differential if that port is before the filter. The filter causes a slight drop, and different filters will cause greater differences than other filters. Post filter, the pressure will be the same throughout the engine.
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Thank you, if I want to know more, I will ask by starting my own thread.

 

wtf is this?

 

bot/scammer getting their post count up

 

I might be old, but how and why is it allowed?

 

How: anybody that knows the forum software, which is quite a common one, can write a script to create a new user.

Why: near impossible to stop. Would require 24/365 human intervention and some means of detecting an AI in real time. I would hope that the forum mgmt deletes these things after a few days and it becomes obvious that it's not a real person. They're generally REAL eeeeeeezzzzy to spot; nearly always totally dart-board-level random first & last names, in CamelCase format, half the time of a gender that doesn't match the forum's predominant users. Like, a female userID with 2 plainly different ethnicities or a first name that nobody has called their kid for 75 years, on this forum, posting inane babble about "the update"; always with no actual mention of the actual topic and no actual contribution whatsoever, even a negative one.

Why do they do it: that, to me, is the mystery. I'm guessing that there are some forums that expose e-mail addresses and whatnot, and the pervs and scammers are hoping to land on one such.

 

So, to follow up, if the port is between the pump and the filter, then the pressure may not be accurate, but if the port is after the filter the pressure should be the same as the rest of the engine. Is that correct?

 

Yes, more or less. After the filter there's nothing but passages about ˝" dia until the split-offs that go to the various bearings and whatnot. Which as detailed, aren't "perfect", butt shouldn't be a major factor unless you're trying to run in the Street Outlaw show or something.

The filter shouldn't cause more than acoupla pounds of pressure drop, in any case. It even has a bypass valve inside that opens when the pressure drop across it exceeds some amount indicating that it's plugged up and doing more harm than good. Usually something in the 5 - 7 psi kinda range in most filters.

 

Thanks. I found a diagram of what you described, was able to figure out where I want to run my line is after the filter, so I should be good. I appreciate all of the answers.