Regulator Valve Inspection

WARNING: This page is about a different car, the 2004 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

Visually inspect components for wear and damage.
Check oil pressure regulator valve sliding surface and valve spring.
Coat regulator valve with engine oil.
- Check that the regulator valve falls smoothly into the valve hole by its own weight and gravity.
- If damaged, replace the regulator valve set or front cover assembly.
Fig 1: Identifying Regulator Valve Components
Courtesy of NISSAN MOTOR CO., U.S.A.
Check regulator valve to front cover clearance.
Clearance: 0.040-0.097 mm (0.0016-0.0038 in)
- If the valve exceeds the specification, replace the front cover assembly.
Fig 2: Checking Regulator Valve To Front Cover Clearance
Courtesy of NISSAN MOTOR CO., U.S.A.