Oil Pressure Regulator Valve: Testing and Inspection

Pressure Relief Valve

Inspection

1. Thoroughly clean valve bore and valve to remove any metal chips which may have entered bore as a result of drilling operation.
2. Inspect valve and valve bore for wear, scoring or galling.
If inspection determines part(s) to be unserviceable replace valve and/or cover.
3. Check clearance between valve and bore.
The valve should slip into bore without side play or binding.
4. Check spring for signs of fatigue or collapse.