Inspection

1. Clean all pump components in suitable solvent.
2. Inspect pump housing and cover for damage or casting imperfections. Replace housing if necessary.
3. Inspect idler gear shaft fit in housing. If shaft fits loosely, replace pump or timing chain cover as needed.
4. Inspect pressure regulator valve for damaging or sticking. Small burrs may be removed with an oil stone.
5. Install pressure regulator valve spring for loss of tension or damage and replace as necessary.
6. Inspect suction pipe and screen for looseness or damage and replace as necessary.
7. Inspect gears for damage and replace as necessary.
8. Inspect driveshaft for looseness or excessive wear and replace as necessary.