Piston Cooling Jets
Piston cooling jets1. Apply compressed air to each piston cooling jet valve at (A) and verify that air passes through piston cooling jet valve at (B). If air does not pass, replace piston cooling jet valve.
Air pressure: 35.6 - 44.1 psi (245.3 - 304.1 kPa, 3.1 - 2.5 kg/cm2) maximum
2. Check piston cooling jet nozzle for clogs. Replace nozzle if necessary.