h22a oil pressure problem

hi ijust installed an h22a engine in my car and have no oil coming to the head .i opened the engine and everything looks brand new ,not even one sco re anywhere .all my oil passages are clear ,my oil pump gear clearances are fine and so is my relief valve but still no oil pressure . can anyone tell me where the problem might be ?

ummmm. if you really did check all that you said you did, theres a big clearance problem somewhere else in the motor that is draining oil pressure. where did you check your oil pressure at? your head gets oil as im sure you know from the block, simple as that, so if you have pressure in the block, its not getting to the head because of a blockage or hole somewhere along the way.

the prob was caused by a bad o ring ,so should get my first drive tomorrow, thaks anyway will keep in touch