oil pressure dropped after replacing oil pump

[m3f_charofire]

Ok, its very possible I have other issues--I agree, but i can tell you for certain, the way i just mentioned testing the old pump vs new pump, the old has suction, and the new one, doing the exact same test, has no suction.

[m3f_enderw88]

Ok, its very possible I have other issues--I agree, but i can tell you for certain, the way i just mentioned testing the old pump vs new pump, the old has suction, and the new one, doing the exact same test, has no suction.

You put the old pump back in the same location, or just spun it up? Orientation of the pump can make a huge difference to net positive suction head (the ability of a pump to draw to its intake). Not questioning you, just trying to understand all the symptoms.

[m3f_charofire]

Agreed. I need to go back and see if i had the same orientation to create a valid test. Keep the ideas coming, I really need them. thanks.

[m3f_RickO1]

Can you pull the pump apart to inspect the internals? If the new pump will not pull any suction, I would think you could see some significant damage.

[m3f_englishtom1596q]

was there any metal in the pan when you dropped it? that will be a clear indication if you lost oil pressure

[m3f_falciott]

I'm not sure what the problem might be, but out all of this.. I have learned a valuable lesson...never sit on the can while the car is running unattended!

[m3f_charofire]

Well, I have quite the update. Brand new pump did fail. New pump: 11psi at idle after 30 minutes. Checked out a main bearing and rod bearing to be sure I didn't damage anything and they looked normal. But, after having pulled the valve cover I noticed something incredible stupid that I must have let slip when putting back on my head. the cam tray's, or at least the caps were in the reverse position. E was on the exhaust side, and A was on the intake side. Can't believe I did that. Now I just need to determine if i did the entire trays in the wrong position, or just the caps. Any way to tell the difference between the 2 trays?

[m3f_enderw88]

Well, I have quite the update. Brand new pump did fail. New pump: 11psi at idle after 30 minutes. Checked out a main bearing and rod bearing to be sure I didn't damage anything and they looked normal. But, after having pulled the valve cover I noticed something incredible stupid that I must have let slip when putting back on my head. the cam tray's, or at least the caps were in the reverse position. E was on the exhaust side, and A was on the intake side. Can't believe I did that. Now I just need to determine if i did the entire trays in the wrong position, or just the caps. Any way to tell the difference between the 2 trays?

Nice. Glad it wasn't as serious as you initially thought. Have you tried to start it? Did you dissect the old new pump to see what failed?

[m3f_charofire]

Well, the new pump that failed--I didn't dissect it because in order to get my refund they wanted it back as it was. So now I am hoping someone knows how to distinguish the cam tray's while still bolted down to determine if I only have my caps wrong. If i can leave the tray's that would be awesome and just move the caps, but I don't know.

[m3f_tbaker474]

Well, I have quite the update. Brand new pump did fail. New pump: 11psi at idle after 30 minutes. Checked out a main bearing and rod bearing to be sure I didn't damage anything and they looked normal. But, after having pulled the valve cover I noticed something incredible stupid that I must have let slip when putting back on my head. the cam tray's, or at least the caps were in the reverse position. E was on the exhaust side, and A was on the intake side. Can't believe I did that. Now I just need to determine if i did the entire trays in the wrong position, or just the caps. Any way to tell the difference between the 2 trays?

How did you determine that the pump failed? As I mentioned in my previous post, 11psi is within spec.

[m3f_charofire]

Yes, you are right, 11psi is within spec. But the "new" pump, which we will call #1, just stopped suctioning. I took it to a machine shop and they did a test, along side my original pump, and the original pump pulled oil, and the new one did not. New pump number 2 is installed and working within spec. I just need to get the cam tray situation figured out. Thanks.

[m3f_tbaker474]

Yes, you are right, 11psi is within spec. But the "new" pump, which we will call #1, just stopped suctioning. I took it to a machine shop and they did a test, along side my original pump, and the original pump pulled oil, and the new one did not. New pump number 2 is installed and working within spec. I just need to get the cam tray situation figured out. Thanks.

Ah ok I misunderstood