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 (0.05 in.) diameter drill will go through the nozzle hole (A) (1.31 mm (0.052 in.) diameter).

- Insert the other end of a 3.7 mm (0.15 in.) drill into the oil intake (3.8 mm (0.15 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 380 kPa (3.9 kgf/cm2, 55 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.