1999ssls1

iTrader: (71)

I have no oil pressure on my new motor. I just got through building it and putting it in the car. It is a new ls6 oil pump. I thought that was the problem so I replaced it and the o ring and nothing. Its not making its way to the valve covers at all so its not the sending unit being bad. Anyone have any ideas? I have never seen anything like it before.

Bo White

iTrader: (59)

For you to have to oil pressure at all youve gotta be missing a oil passage plug in the front or rer of the engine or something simular. To be able to bleed off 30psi of oil pressure youve gotta have one hell of a leak.

Jake@EPP

Did you remember to install the plastic barbell back into the backside of the motor? This is critical for oil-pressure.

Steve Bryant

iTrader: (1)

1. Have you verified that the dumbbell plug is properly in place in the back of the main oil journal and that the small "freeze plug" is in place in the front of the main oil journal/galley?

2. Did you fill the oil filter with oil?

3. Have you started the engine or are you just cranking it?

4. Is the oil pump flush against the block making a good seal?

5. Do you have the correct O ring on the oil pickup tube?

Steve

formula001

iTrader: (1)

Yeah make sure you put the o-ring on right and it did not get pinched.

5_02ls1

iTrader: (20)

id be pullin that bitch back apart...

1999ssls1

iTrader: (71)

The o ring is on perfect and pump is flush with block. I turned it over a few times to prime the pump then I crunk it and had 0 oil pressure. Where are the gally plugs located?

Steve Bryant

iTrader: (1)

Here are some pictures I took about a year ago for a thread identical to this. If search would work, you could find dozens of threads on this same subject. Anyway, here are the pictures. I took them of a block that was upside down and then inverted the pictures 180 degrees and added the labels.

Front Plug Location


Left side of Block


Rear of Block

1999ssls1

iTrader: (71)

Thank you very much.

robertbartsch

This has happened more times than I can remember. Why don't the builders replace the plugs or warn new owners?

1999ssls1

iTrader: (71)

Need help guys. The galley plugs are in place. What else could stop the oil from reaching the top end?

mrr23

iTrader: (3)

oil pump bypass stuck open.

Steve Bryant

iTrader: (1)

Are you saying that you have pulled the engine and pulled the flywheel and rear cover off the engine and the front (timing) cover off to verify that the plugs are there?

We're not talking about the two exterior plugs on the left side of the block.

Reply to this question, and we'll go from there.

Steve

1999ssls1

iTrader: (71)

Yes sir I pulled it today. I even pulled one of the main caps off to double check I had the bearings in the right place.

1999ssls1

iTrader: (71)

So what do you think? I am stumped.

mrr23

iTrader: (3)

my guess

1999ssls1

iTrader: (71)

Where is that located?

1999ssls1

iTrader: (71)

If its in the pump itself, I have put 2 brand new pumps on the new motor and nothing.

Steve Bryant

iTrader: (1)

1999ssls1,
Take a break. I'm working on an answer for you. I've scanned some pages out of my factory maintenance manual that I'll post in a little while. I'll also write out a few step by step troubleshooting suggestions, but I've got to do a few other things right now.

It's good to take a break anyway. Sometimes you can get so tired and frustrated you'll screw things up (been there, done that). You'll get this worked out!

Steve

SPRAYED 01

iTrader: (22)

You have to love ls1tech. Im putting an engine together right now also. There have been so many questions and all my answers come off this site. Dont worry this forum will not let you down. Did you actually start the motor at one time and it read 0?