Lost oil pressure on my 2.6

[05king]

Just recently purchased a 1981 Sport with 75k original miles that has been sitting since 1997. The guy i bought it from did a little bit of work on it after getting it out of indoor storage and lost interest and i bought it. I only drove it about half a mile total as the entire fuel system needed replaced. i have that all done but now but it has since lost oil pressure. The oil pressure gauge worked when i bought it all though it did not seem like it had much oil pressure. The head is new and looking down the oil fill everything inside the head looks new.
I changed the oil and filter and have started it for about a total of 2-3 minutes. I took the oil sensor out of the block and turned the motor over and no oil came out. I checked the oil filter and it did have oil in it so that confuses me a little bit. I have a sensor for it and installed it but that wont fix anything. Can this motor somehow lose prime in the oil pump? I am out of easy ideas and my thoughts were to pull the oil pan and check the pick up tube for blockage, o ring etc, gasket etc first. If that all looks good I tear into the front of the motor and possibly replace the oil pump.

does that sound like a decent strategy going forward?
is there anything else i can do to trouble shoot it before i get inside the motor?

[1fastcolt]

if it was me I would buy a cheap oil pressure gauge.. and install it with the sensor it comes with and see if u get pressure on it (at startup for like 10 sec just to test it).. if no pressure still.. then i would drop the pan and check the oil pickup tube.. then i would do the pump after all that.. hope this helps..

[05king]

i bought a oil pressure test kit. i was just scared to start it but i will give that a try and see what happens.
thanks for the reply

[Fingers]

Keep us updated. I'd be interested to know what you found.

[SubGothius]

Note the block threading for the oil pressure gauge sender/warning light switch is BSPT threading, whereas an aftermarket gauge or test kit will prolly be NPT, so you may need a BSPT to NPT adapter (I found one on eBay).

[05king]

Luckily the kit I bought had the correct fitting. Unluckily ZERO oil and oil pressure