- Remove the grommets.
 
- Clean the lower valve rocker arm cover. Remove any sludge or other deposits.
 
- Clean the lower valve rocker arm cover mating surfaces.
 
- Inspect the lower valve rocker arm cover for cracks or other
damage.
 
- Inspect the lower valve rocker arm cover mating surfaces for damage.
 
- Replace the lower valve rocker arm cover if any damage is found.
 
- Inspect the grommets for damage.
 
- Replace the grommets if any damage is found.
 
- Install the grommets.