Does anyone know if the oil pump pickup canister and screen on a 1959 235 are removable for the purpose of cleaning. I just dropped the oil pan from a motor that has been sitting for years and found the pickup screen to be covered in goo. Is any of it serviceable without removing the entire oil pump assembly. By the way, glad I didn't find any acorns in this one. I was hesistant to try to turn the canister or the tube.