- Clogged oil filter: A clogged oil filter can restrict oil flow to the top of the motor. Check the oil filter and replace it if it is clogged.
- Low oil level: If the oil level is too low, the oil pump may not be able to draw enough oil to send to the top of the motor. Check the oil level and add oil if necessary.
- Defective oil pump: A defective oil pump may not be able to generate enough pressure to send oil to the top of the motor. Have the oil pump inspected and replaced if necessary.
- Worn out engine bearings: Worn out engine bearings can allow oil to leak from the top of the motor. Have the engine bearings inspected and replaced if necessary.
- Improperly installed oil filter: An improperly installed oil filter can leak oil from the top of the motor. Make sure the oil filter is properly installed.
- Restriction in the oil passages: There could be a restriction in the oil passages that is preventing the oil from getting to the top of the motor. This could be due to a buildup of sludge, dirt, or other debris. You will need to clean the oil passages to resolve this issue.
