Poss. bad oil pump?
Thread Starter
On The Tree
Joined: Jan 2005
Posts: 107
Likes: 0
From: Minneapolis
Poss. bad oil pump? My oil pressure has been bad since I installed my cam last year. Before the cam it was fine, but after then install it starts at 40+ on a cold idle, and slowly goes down until its hovering around 10 at hot idle, and 20-30 at crusing with spurts up to 40 at WOT.
Now I've heard that when you have a spun bearing you'll hear it, but my engine sounds fine, and I didnt find any metal in my oil.
What are some key points in finding out if its the pump, or do I just have to replace it and see what happens?
It is a new LS6 pump w/ a Rollmaster double chain.
Now I've heard that when you have a spun bearing you'll hear it, but my engine sounds fine, and I didnt find any metal in my oil.
What are some key points in finding out if its the pump, or do I just have to replace it and see what happens?
It is a new LS6 pump w/ a Rollmaster double chain.
You probably have a pinched o-ring. It's hard to get the pickup on there REALLY straight due to the oil pump spacers. I just installed one. I'm getting ready to button her up. I hope this isn't an issue for me. I don't want to have to do this again...... soon anyway 
Good luck! I probably need a little myself!
Good luck! I probably need a little myself! 
Originally Posted by Zinc
My oil pressure has been bad since I installed my cam last year. Before the cam it was fine, but after then install it starts at 40+ on a cold idle, and slowly goes down until its hovering around 10 at hot idle, and 20-30 at crusing with spurts up to 40 at WOT.
Now I've heard that when you have a spun bearing you'll hear it, but my engine sounds fine, and I didnt find any metal in my oil.
What are some key points in finding out if its the pump, or do I just have to replace it and see what happens?
It is a new LS6 pump w/ a Rollmaster double chain.
Now I've heard that when you have a spun bearing you'll hear it, but my engine sounds fine, and I didnt find any metal in my oil.
What are some key points in finding out if its the pump, or do I just have to replace it and see what happens?
It is a new LS6 pump w/ a Rollmaster double chain.
TECH Resident
Joined: Aug 2004
Posts: 875
Likes: 2
From: Portland Oregon
Buy a new O ring and take the pan off again. Make sure that the O ring is all the way into the pump before you put the pick up in. A GM mechanic told me to use some gasket tack and stick the O ring inside the pump, then insert the tube.
Good Luck.
Good Luck.
