03 MC R50 No Oil Pressure. originally had a blown headgasket
 

Hello guys im at lost with my situation and need all the help possible. Originally had a blown head gasket which im wondering if this has to do with my engine oil light being on solid red and no oil pressure. i removed the head and reinstalled putting new gasket and retiming the engine by removing chain guides tensioner and harmon balancer crank case cover. I installed a new oil pump case cover and retimed motor by putting crank gear arrow at 12 o'clock then recoonnected to cam sprocket pin dowl set at 11 and arrow at 12 with the sprocket holes paralell to the surface of the head with all pistons down. I then tightened it all up with the guides and tensioner along with all remaining parts and started engine which it had the oil light on and it seems no oil getting to the cams or head. Replaced alreadt oil sensor oil pump checked oil pan and replaced oil filter housing and still no pressure. Any info to help resolve my problem be great help