Oil Spray Jet: Testing and Inspection

Engine Oil Jet Inspection

1. Remove the oil jet Service and Repair, and inspect it as follows.

- Make sure that a 1.2 mm (3/64 in) diameter drill bit will go through the nozzle hole (A) (1.31 mm (0.0516 in) diameter).
- Insert the other end of a 1.9 mm (1/16 in) drill into the oil intake (2.0 mm (0.079 in) diameter). Make sure the check ball (B) moves smoothly and has a stroke of about 2.0 mm (0.079 in).
- Check the oil jet operation with an air nozzle. It should take at least 325 kPa (3.9 kgf/cm2, 47 psi) to unseat the check ball.

NOTE: Replace the oil jet assembly, if the nozzle is damaged or bent.





2. Carefully install the oil jet. The mounting torque is critical.