Oil Pump Inspection: Notes
WARNING: This page is about a different car, the 2004 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.
- Check outer rotor, inner rotor and oil pump cases for excessive wear or damage. Check relief valve for excessive wear or damage.
- Measure free length and tension of oil relief spring. See Fig 1
.
Spring (for oil pump) free length
63.5 mm (2.5 in.)
Spring (for oil pump) preload
86.0 N for 52.0 mm (8.6 kg for 52.0 mm, 62.2 lb for 2.05 in.)
- Radial clearance
Measure clearance of oil pump rotor and oil pump case using thickness gauge. Check radial clearance between outer rotor (2) and case (1), using thickness gauge (3). If clearance exceeds its limit, replace oil pump assembly.
Radial clearance between oil pump outer rotor and oil pump case
Limit: 0.15 mm (0.0059 in.)