Engine Overhaul Manual v8 40 46: Remove Oil Pressure Relief Valve
ENGINE
OVERHAUL
25
Oil pressure by-pass valve - remove
1. Remove circlip.
2. Remove by-pass valve plug.
3. Remove and discard ’O’ ring from plug.
4. Remove by-pass valve spring and plunger.
5. Check plunger and bore of by-pass valve in oil
pump body for scoring and corrosion.
NOTE: Light corrosion may be removed
using grade 600 emery cloth soaked in oil.
Oil pressure relief valve - if fitted - remove
1. Remove circlip.
2. Remove relief valve plug.
3. Remove and discard ’O’ ring from plug.
4. Remove relief valve spring and piston.
5. Check piston and bore of relief valve in oil
pump body for scoring and corrosion.
NOTE: Light corrosion may be removed
using grade 600 emery cloth soaked in oil.