after replacing an engine now i'm having a laod of problems with this one, extreamly loud knocking/buffering noise from the air-filter that sounds like a helicopter, loud valves noise/loud and shaking engine... than i drove it for a 50 meters and it shuts down!
now when i started it and pushed the gas it doesn't accelerate.. it just shuts down afterwords.

before when i start it up, i have to keep pumping gas so wont shut down... it seems like there a problem with gas pump or something.. i did bleed the fuel system a little and readjusted the timing belt, but didn't help much. it kinda lowered noise of the engine a little but not the air-filter

though i will rebleeded fully tomorrow and see if that helps.

pls anyone know why would an intake manifold "air-filter" make such helicopter type of noise?
and why the engine will be shaking very hard and noisy?
I have readjusted timing belt according to manufacture marks and it helped lowering the engine noise, but i'm having a load of problems adjusting the gas pump... could it be a defective gas pump or just lot of air on the fuel system?