For my swap Im using a iron 5.3 with an fbody pan. Not done much work on ls series before, but I keep seeing threads on people with oil pressure problems and it keeps mentioning this "o ring". Is that the o ring on the pickup tube?

My new one is blue, I thought I remember reading about different colors, is one newer than the others?

To my knowledge people pinch this o ring, how? Just over tightening? What would that have anything to do with it? How can I avoid screwing this up?

 

What they do is they leave that O-ring inside the oil pump and when fitting the pickup tube back onto the oil pump, they cut it with the pick up tube. You want to put that O-ring on the pickup tube first and then seat the pick-up tube back into the oil pump.

 

Ahh, ok. Do you happen to know the torque spec on the pickup tube or just good n tight?

 

The blue one should be the factory GM o-ring for a non-truck pickup tube which is what you are using. As stated above, install the o-ring on the tube first, lightly oil it then insert into the pump body.

Shane

 

The correct torque specification for the pickup to oil pump is 106 in-lb.

That is INCH POUNDS.

It comes out to about 9 ft-lbs. if you don't have an inch pounds torque wrench.

 

Hey Shane, are us peeps with truck pan/pickups supposed to use a different O-ring? The one I put in my setup is the blue one, but I think there's an orange one laying around somewhere....

Russ

 

Yes Russ, the truck o-ring is usually thicker... you should compare it to the one you took out.

Shane