Camshaft Front Oil Seal
PROCEDURE
1. Check the lip of the oil seal for wear. If the lip is worn or damaged, replace the oil seal.
2. Check the camshaft surface contacting the oil seal. If this surface is evenly worn, replace the camshaft.
Hydraulic valve lash adjusters
Fill the hydraulic valve lash adjuster with engine oil, hold it upright and compress it from both sides with your fingers.

Main malfunctions of hydraulic valve lash adjusters, causes and remedies are given in the table.

Main malfunctions of the hydraulic valve lash adjusters, their causes and corrective actions are shown in the table.
Chain
Check the chain for uneven wear, cracks or damage and replace it if necessary.
Test yourself
A quick Hyundai Accent quiz: every answer comes with an explanation and a link to the manual page.