Kubota WG972-GL-E3F — Engine Oil Pressure
Testing & diagnosis · Lubricating system
For the Kubota WG972-GL-E3F, from the Kubota service manual.
Browse Kubota generators & specs →
Procedure
- Remove the engine oil pressure switch, and set an oil pressure tester.
- Start the engine. After warming up, measure the oil pressure of both idling and rated speeds.
- If less than the allowable limit, check oil level, oil pump, oil strainer, oil filter cartridge, oil gallery, oil clearances and relief valve.
Tools required
- Oil pressure tester Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- At idle speed: More than 50 kPa (0.5 kgf/cm2, 7 psi)
- At rated speed: 200 to 440 kPa (2.0 to 4.5 kgf/cm2, 29 to 64 psi)
- Allowable limit: 150 kPa (1.5 kgf/cm2, 21 psi)
- Oil pressure switch tightening torque: 15 to 19 N·m
Source: Kubota service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.