RonBrooksGA

I have a feeling that I know the answer but here are the symptoms. My '94 just this morning had oil pressure drop to ZERO while making right turns at any sort of decent speed. Oil level is fine and I'm running Wix filter and Mobil1 5-30. Change was ~900mi ago.

Pressure is normal at idle, cold, warmed or turning left. Pressure only disappears when making right turns. I noticed it first when on a looping off ramp to the right this morning. The office parking lot was empty when I arrived and if I drive in circles at anything over 20 mph making a right the pressure drops to ZERO. Just fine going left. Haven't tried any heavy breaking.

My guess is the pump pickup tube fell off AGAIN! I had this about 10k mi ago and the shop was supposed to tack weld it once in place. I have the feeling that was not done.

Suggestions?

antfarmer2

Stop driving in circles and get it fixed

8a8mfh

I just tacked mine on few weeks ago. Never liked doing that with a steel tube and iron pump.
Last night changed the oil looked inside the drain hole and could see the joint right there. Thats one way to check it.

DGXR

I understand that most engine designs secure the oil pickup tube with either a retainer bracket (similar to an old-school distributor adjustment/lock-down), or the pan itself provides support under the pickup tube to hold it into the pump inlet.
Just seems weird to me, especially seeing how others have had the same problem, if this is in fact the problem you are having. I'll peek into the oil pan drain hole next time I change the oil.

Mishawaka

There anyway you can drill and tap a hole to put a setscrew in it? Or maybe silver solder or even braze it? I kinda agree with 8a8mfh about tack welding it. Either way, it's gonna be a pain to pull it all apart to take of the problem.

1984Z51auto

There is a bracket that is available from the drag racing suppliers that will effectively hold the pickup to the pump body. Part number is 555-23620.

8a8mfh

A '94 needs this one for the 3/4 pick up. 555-23621
Mellings website says it's a good idea to have the pick up tig welded on. With the correct rod this would work, problem is not many people know what the correct rod is.

People have used set screws.