ТУРБОНАГНЕТАТЕЛЬ ПРОВЕРКА

PROCEDURE

1. INSPECT TURBOCHARGER SUB-ASSEMBLY

   
   

   1. 

      *a	Compressor Side Impeller
      *b	Exhaust Side Turbine
      *c	Center of Exhaust Side Turbine

      Check if the compressor side impeller and exhaust side turbine are damaged or defective.

      Tech Tips

      Wear on the center of the exhaust side turbine is not a malfunction.

   2. 

      *a	Waste Gate Valve
      *b	Rod

      Move the rod by hand and check that the waste gate valve is not stuck.

   3. 

      Using a straightedge and feeler gauge, check the turbocharger sub-assembly installation surface for warpage.

      Standard Warpage
      0.15 mm (0.00591 in.) or less

      If the result is not as specified, replace the turbocharger sub-assembly.

   4. 

      *a	Contact Surface of Waste Gate Valve Port

      Close the waste gate valve and using a feeler gauge, measure the clearance between the waste gate valve and the contact surface of the valve port of the turbine with valve housing sub-assembly waste gate.

      Standard Clearance
      0.15 mm (0.00591 in.) or less

      If the result is not as specified, replace the turbocharger sub-assembly.

   5. 

      *a	Area to be Checked

      Check the areas shown in the illustration for oil leakage.

      OK
      There are no oil leaks from the compressor with bearing housing sub-assembly.

      Note

      Oil on the inlet side of the compressor is from oil in the blow-by gas and is not a malfunction.

      If the result is not as specified, replace the turbocharger sub-assembly.

   6. 

      Rotate the compressor wheel by hand as shown in the illustration, and check that the compressor wheel rotates smoothly.

      OK
      Compressor wheel rotates smoothly

      Tech Tips

      If the compressor wheel does not rotate smoothly, replace the turbocharger sub-assembly.

   7. Check that the turbine shaft rotates smoothly.

      
      

      1. 

         Set a dial indicator to the outlet side of the turbine shaft.

      2. Move the turbine shaft in the axial direction and check for play.

         Standard Axial Play
         0.15 mm (0.00591 in.) or less

         If the result is not as specified, replace the turbocharger sub-assembly.

2. INSPECT WASTE GATE VALVE ACTUATOR

   
   

   1. Check the waste gate valve actuator hose for cracks and damage.

   2. Check the waste gate valve actuator with bracket assembly air hole.

      
      

      1. 

         Check that the waste gate valve actuator air hole shown in the illustration is not clogged.

   3. Check the waste gate valve actuator with bracket assembly travel.

      
      

      1. Connect a vacuum pump to the waste gate valve actuator.

      2. 

         *a	Vacuum at 30 kPa (255 mmHg, 8.8 in. Hg)
         *b	Vacuum at 0 kPa (0 mmHg, 0 in.Hg)

         Using a vacuum pump, apply a vacuum of 30 +/- 4.0 kPa (225 +/- 30 mmHg, 8.8 +/- 1.2 in. Hg) to the diaphragm chamber to operate the waste gate valve actuator.

         OK
         The waste gate valve closes when vacuum is applied.

         Note

         Do not apply a vacuum of 65 kPa (488 mmHg, 19.2 in. Hg) or more to the waste gate valve actuator as doing so may damage the diaphragm.

         Tech Tips

         If the waste gate valve actuator does not operate, replace the turbocharger sub-assembly.

      3. 

         *a	Paint Mark

         Place a paint mark on the waste gate valve actuator rod from the waste gate valve actuator bracket as shown in the illustration.

      4. Using a vernier caliper, measure the distance from the waste gate valve actuator bracket to the paint mark at a vacuum of 0 kPa (0 mmHg, 0 in. Hg).

         

         *a	Paint Mark	*b	Travel of Waste Gate Valve Actuator
         	Vacuum at 0 kPa (0 mmHg, 0 in. Hg)	-	-

         Standard
         15 mm (0.591 in.) or more

         If the result is not as specified, replace the turbocharger sub-assembly.

         Note

         If the result is not as specified when replacing the turbocharger sub-assembly, and check the travel of the waste gate valve actuator again.

      5. Disconnect the vacuum pump to the waste gate valve actuator.

3. INSPECT INTAKE AIR CONTROL VALVE (AIR BY-PASS VALVE ASSEMBLY)

   
   

   1. Inspect the resistance.

      
      
      1. 

         *a	Component without harness connected (Air By-pass Valve Assembly)

         Measure the resistance according to the value(s) in the table below.

         Standard Resistance
         Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 8.7 to 9.2 Ω

         If the result is not as specified, replace the turbocharger sub-assembly.