Sorry, it's bmw to bmw but wanted to ask here as the bmw community seem in lack of knowlage on them, sorry

Hey Guys So i have done an engine swap with an M51 (from the P38/BMW e36/ Omega)from a 318TDS to a 325TDS (confirmed the engine ran before swapping) I did a partial strip down of the engine to clean it up (didn't strip the fuel pump though). I have now put the lump into the car but I am...