1. Remove the oil jet, and inspect it as follows.
   - Make sure that a 1.1 mm (0.04 in.) diameter drill will go through the nozzle hole (A) (1.2 mm (0.05 in.) diameter).
   - Insert the other end of a 1.1 mm (0.04 in.) drill into the oil intake (1.2 mm (0.05 in.) diameter).
     Make sure the check ball (B) moves smoothly and has a stroke of about 4.0 mm (0.16 in.).
   - Check the oil jet operation with an air nozzle. It should take at least 200 kPa (2.0 kgf/cm 2 , 28 psi) to unseat the check ball.
   NOTE: Replace the oil jet assembly if the nozzle is damaged or bent.

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

   Torque: | 16 N·m (1.6 kgf·m, 12 lbf·ft)