Need help just fished building my motor and have low oil pressure.
Ran motor for 5 seconds and the oil light did not turn off. Ordered a oil pressure gauge installed at filter housing and getting 2-4 psi
Engine setup.

2.0 crank .20 over
Acl race bearings .20 on mains and rods. Clearance is 00.15"
Manley h rods.
Wiseco 1400 HD 85.5mm
Still running balance shafts and oil jets.
New oil pump
272 cams
Dual valve springs and retainers.
Running 10w-30
Any advice will be appreciated.

 

Did you pack the oil pump with vaseline or grease when assembling the engine ?

 

5 seconds probably isnt enough time. I would let it idle longer. If its a fresh build it should have assembly lube so running dry wouldnt be a worry for me. If your extra worried pull timing belt off and prime oil pump with a drill or by a pressurized oil can and feed oil in through cylinder head turbo oil feedline.

 

I had to do this on Every home built engines...

 

I did but not vaseline. I used assembly lube.

 

How long do I spin it with drill?

 

Oh and thanks for the guys I'll try priming the pump with a drill

 

IIRC, the last engine I saw oil shooting out the the uncovered head in just a few seconds. I'll say if you don't have good pressure in 10 seconds there is something wrong.

 

So I did this and is wasn't showing oil at the head.
Removed oil pan to check oil pick and found a crack on it.
Called my local Mitsubishi dealership and got a new pick up and gasket.
Installed the new pick up and gasket and now I'm getting 60psi when cold and drops to 18psi when normal temp.
Is this normal pressure?

 

Ohh this is at idle

 

.......................

 

So yesterday I took the car for a test drive and oil pressure doesn't go above 18psi and oil light starts to flicker.
Any ideas?

 

What's oil pressure at idle now?

 

I started the car today and is at 13psi at idle and at 1500rpm it drops to 12psi.

 

Sounds like you need to take her apart.