Oil pump and rod bearings.

[rescuer3]

Okay, engine lost oil pressure and started knocking a little. Pulled the oil pan to find some metal in it. Pulled rod caps, number 1 has spun, 3,6&7 have some play. No scoring or damage to the crank. It is a 2003 5.4 with 170,000 miles. My question is should I change the oil pump when I replace the rod bearings or did the spun bearing cause my drop in oil pressure? Any advice is appreciated.

 

[JUST4FUN]

If your in replacing the bearings (all ) including the mains replace the pump

 

[rescuer3]

Not replacing mains, engine is still in the truck.

 

[JUST4FUN]

I don't know, if it ran with out oil pressure. id think do the whole thing. if the rod bearings are bad . just replace # 1 and try it. see if it knocks

 

[stamp11127]

Oil flow diagram, should be similar if not identical:
1994 Ford Crown Victoria Diagrams picture | SuperMotors.net

The mains may have dodged a bullet. If the rod isn't shot, I'd check / change all of the rod bearings since your in there.

Changing the pump with a known good brand is worth the effort and a no brainer.

 

[rescuer3]

Thanks for the advice, this is a low priority project right now but I will update when the rod bearings and oil pump are done.