HELP!!!! Oil pressure problems on the new build!

[OctaneGraphix]

Hey guys, I just dropped the new 347 stroker (new as in rebuilt) in the fox last weekend. Broke it in, everything went fine, have been driving it quite a bit before I take it to Street Lethal for a tune (trying to get 500 miles). Everything has been going great so far, except for yesterday, I took it on a 2.5 hr drive, stopping halfway for lunch.... everything went fine on the trip as well (most of the drive was not on the highway, and when i was i never really stayed same RPM's) well when I was going to leave and come home yesterday, I was not getting good oil pressure on the gauge. When I would rev the motor, it would get around 16lbs, at idle it barely has anything. I changed the filter thinking it was just junked up from bits of stuff from initial break in. That did nothing.... I tried to prime the system again... I can get the gauge to read about 20lbs. I took the gauge off and blew air through it to see if it was messed up and it read 40lbs, so the gauge is fine. I dont know what else to try... could this be the oil pump? (and yes for you smart asses out there I did check the oil level lol) Before this issue, I could start it and it would have 60lbs cold, then 40lbs hot. The motor makes excessive noise when i start it, but nothing banging or clanking... moreso just sounds like stuff isnt getting enough oil. I put good oil in it for break in and it looks brand new still... I put in shaeffers oil. SO I know the oil isnt junk @$50 something a case... lol. Any thoughts or suggestions? This sucks!

[no1sirbutler]

New oil pumps/gears or did you reuse the old?

[OctaneGraphix]

i will have to check with the builder, but im guessing we used the old ones

[TooFast98Cobra]

Its under 50 for a new oil pump i would have hoped u bought a new one for the rebuild. Order a blue printed precision and change it out.

[OctaneGraphix]

I would hope so too! lol I havent seen an itemized reciept yet. just a generic one. But lets say it IS the oil pump... I take it I am going to have to pull the motor again??!!?

[wick]

Just take the mounts off, jack it up and pull the pan. Pull the distributor also.

[OctaneGraphix]

Do I need to pull the motor again to change the pump?

[SK@StreetLethal]

First thing is to drain the oil in the engine into a clean container and look for any debris. Second remove the filter and cut it open and see what is hiding in the folds. But do not run it any longer. Save the oil and filter if the builder wants to see it also.

[wick]

There is a possibility that the pick up is clogged with junk. Either way the pan HAS to come off.

[OctaneGraphix]

OK will do. Man this sucks.... Ive spent soo much time on this thing just to get a kick in the balls like this lol. Thanks guys.

[vitaleffects626]

You don't have. To pull motor to change pump read wicks post

[wick]

To make it even easier for you, I saw an engine bar for sale here last week. Check into getting it.

[wick]

OK will do. Man this sucks.... Ive spent soo much time on this thing just to get a kick in the balls like this lol. Thanks guys.

It happens. Part of the joys of a mustang.

[TooFast98Cobra]

It happens. Part of the joys of a mustang.

X2!!! The fun as just begun. Wait till it breaks every other time u drive it.

[OctaneGraphix]

That upper intake manifold seems pretty close, I won't have to take that off a well?

[Mark Aubele]

Shouldn't have to. Just start pulling the motor up and if it makes contact pull it.

[yeahloh95]

could you have broken the oil pump drive shaft? they make hardened ones for that reason

[Mark Aubele]

Most importantly don't start the car or drive it for any reason.

[cemnt guy]

It happens. Part of the joys of a mustang.

x2. best of luck to u and keep us updated

[OctaneGraphix]

No I don't think the driveshaft broke because when I prime it it will tea about 16lbs. And can see oil squirting out from where the cam / distributor gears are. We pushed it onto the trailer.