Checking the radiator oil lines
Check the oil lines for damage and oil leaks. If any defects are found, replace the oil lines with new ones.
Checking and cleaning the oil cooler
Remove contaminants from the radiator by blowing with compressed air.
Check the radiator for oil leaks. If any defects are found, replace the radiator with a new one. If the radiator shutter is bent, straighten it using a small flathead screwdriver.