www.changlin.com.cn Leak Check Apply 276 kPa [40 psi] of air pressure to the cooler. If the pressure drop is 35kPa [5 psi] or less in 15 seconds, the cooler is okay. If the pressure drop is greater than 35 kPa [5 psi] in 15 seconds, the charge air cooler must be repaired or replaced . Refer to the CAC manufacturer for repair instructions. NOTE: A leak tank can be used to locate the air leak. Turbocharger Replacement Preparatory Steps: Remove the air intake piping. Disconnect the intake and exhaust piping. Disconnect the wastegate actuator line. 10 mm Remove the capscrews from the oil drain tube. 16 mm Remove the oil supply line. 123 / 149 pages