INTAKE AND EXHAUST 15-1 CONTENTS AIR INTAKE PLENUM... 6 GENERAL INFORMATION... 2 INTAKE MANIFOLD... 8 SERVICE SPECIFICATION...

Transcription

1 5- INTAKE AND EXHAUST CONTENTS GENERAL INFORMATION... SERVICE SPECIFICATION... SPECIAL TOOL... ON-VEHICLE SERVICE... Turbocharger Supercharging Check... Waste Gate Actuator Check... AIR INTAKE PLENUM... 6 INTAKE MANIFOLD... 8 EXHAUST MANIFOLD... TURBOCHARGER... 6 EXHAUST PIPE AND MAIN MUFFLER... INTERCOOLER...

2 5- INTAKE AND EXHAUST - General Information/ Service Specifications/Special Tool GENERAL INFORMATION The intake manifold is made of an aluminium alloy, and the shape provides an increased intake inertia effect and has a good volumetric efficiency. The exhaust manifold is made of stainless steel. The exhaust pipe is divided into three parts; the front pipe, the centre pipe, and the main muffler. SERVICE SPECIFICATIONS Items Standard value Limit Manifold distortion of the installation surface mm 0.5 or less 0.0 Waste gate actuator activation pressure kpa Approx Air temperature switch _C OFF ON 57 or more - <Vehicles with intercooler turbocharger> ON OFF 5 or less - SPECIAL TOOL Tool Number Name Use MD Oxygen sensor wrench Removal/Installation of oxygen sensor

3 INTAKE AND EXHAUST - On-vehicle Service 5- ON-VEHICLE SERVICE TURBOCHARGER SUPERCHARGING CHECK <D6> Caution Conduct the driving test in a location where driving at full acceleration can be done with safety. Two persons should be in the vehicle when the test is conducted; the person in the passenger seat should read the indications shown by the pressure meter.. Connect the pressure gauge to the hose between the turbochager and the waste gate actuator.. Drive at full-throttle acceleration in second gear and then measure the supercharging when the engine speed in about,000 r/min.. When the indicated supercharging does not become positive pressure, check the following items. D Malfunction of the waste gate actuator. D Leakage of supercharging pressure. D Malfunction of the turbocharger.. When the indicated supercharging is 76 kpa or more, supercharging control may be faulty, therefore check the followings. D Disconnection or cracks of the waste gate actuator rubber hose. D Malfunction of the waste gate actuator. D Malfunction of the waste gate valve. WASTE GATE ACTUATOR CHECK <D6> Connect a manual pump (pressure-application type) to nipple A.. While gradually applying pressure, check the pressure that begins to activate (approx. mm stroke) the waste gate actuator rod. Standard value: Approx. 75 kpa Caution In order to avoid damage to the diaphragm, do not apply a pressure of 09 kpa or higher.. If there is a significant deviation from the standard value, check the actuator or the waste gate valve: replace if necessary.

4 5- INTAKE AND EXHAUST - Intercooler INTERCOOLER REMOVAL AND INSTALLATION Hose clamp tightening torque Pipe installation bolt tightening torque 6Nm 0 - Nm Nm Nm 0 "AA "AA "BA "AA "AA "AA Air hose and air pipe removal steps. Air hose E. Air hose B. Air hose F. Air hose A 5. Air pipe A 6. Air hose C 7. Air hose C 8. Air pipe B 9. Air pipe C Intercooler assembly removal steps "AA 6. Air hose C "AA 7. Air hose C 0. Intercooler duct. Intercooler assembly

5 INTAKE AND EXHAUST - Intercooler 5-5 INSTALLATION SERVICE POINTS "AA AIR HOSE C/AIR HOSE A/AIR HOSE B/AIR HOSE E INSTALLATION Align the alignment mark (white paint) on each hose with the protrusion on each pipe. "BA AIR HOSE F INSTALLATION Install the hose with its marking (white paint) upward.

6 5-6 INTAKE AND EXHAUST - Air Intake Plenum AIR INTAKE PLENUM REMOVAL AND INSTALLATION Pre-removal Operation D Engine Coolant Draining (Refer to GROUP - On-vehicle Service.) D Air Cleaner Removal D Throttle Body Removal (Refer to GROUP A.) Post-installation Operation D Engine Coolant Supplying (Refer to GROUP - On-vehicle Service.) D Throttle Body Installation (Refer to GROUP A.) D Air Cleaner Installation D Accelerator Cable Adjustment (Refer to GROUP 7 - On-vehicle Service.) Nm Nm Nm Nm 5 9Nm 0 9 Nm 9Nm 8 Nm 5 Removal steps. Engine cover. Crankshaft position sensor connector. Injector connector. Vacuum hose connection 5. Air pipe assembly mounting bolt 6. Brake booster vacuum hose connection 7. Connector bracket mounting bolt 8. Connector bracket mounting bolt 9. Noise condenser mounting bolt 0. EGR valve. Solenoid valve assembly. Vacuum pipe assembly. Air intake plenum "AA. Air intake plenum gasket 5. Air intake plenum stay

7 INTAKE AND EXHAUST - Air Intake Plenum 5-7 Protrusion Front INSTALLATION SERVICE POINT "AA AIR INTAKE PLENUM GASKET INSTALLATION Install with gasket protrusions in the position illustrated.

8 5-8 INTAKE AND EXHAUST - Intake Manifold INTAKE MANIFOLD REMOVAL AND INSTALLATION <G6> Pre-removal Operation D Engine Coolant Draining (Refer to GROUP - On-vehicle Service.) D Air Cleaner Removal D Throttle Body Removal (Refer to GROUP A.) Post-installation Operation D Throttle Body Installation (Refer to GROUP A.) D Air Cleaner Installation D Engine Coolant Supplying (Refer to GROUP - On-vehicle Service.) D Accelerator Cable Ajdustment (Refer to GROUP 7 - On-vehicle Service.) 5 Removal steps. Accelerator cable. Brake booster vacuum hose connection. Injector connector. EGR solenoid valve connector 5. Purge control solenoid valve connector

9 INTAKE AND EXHAUST - Intake Manifold Nm 0 8 9Nm Nm 0 Nm 0 Nm 6 Nm 0 Nm AA" 6. EGR valve 7. PCV hose 8. Fuel return hose connection 9. Delivery pipe, injector and pressure regulator 0. Vacuum pipe assembly. Solenoid valve assembly. Intake manifold. Intake manifold gasket. Intake manifold stay

10 5-0 INTAKE AND EXHAUST - Intake Manifold <6A> Pre-removal Operation D Fuel Discharge Prevention (Refer to GROUP A - On-vehicle Service.) D Engine Coolant Draining (Refer to GROUP - On-vehicle Service.) D Air Cleaner Removal D Air Intake Plenum Removal (Refer to P.5-6.) Post-Installation Operation D Air Intake Plenum Installation (Refer to P.5-6.) D Air Cleaner Installation D Engine Coolant Supplying (Refer to GROUP - On-vehicle Service.) D Accelerator Cable Adjustment (Refer to GROUP 7 - On-vehicle Service.) 5 Nm 5 Engine oil O-ring 8 Nm Nm Nm AA" "BA Removal steps. Engine mount stay. Fuel return hose connection. Fuel high-pressure hose connection. Injector connector 5. Delivery pipe, injector and pressure regulator "AA 6. PCV hose connection 7. Vacuum hose connection 8. Intake manifold 9. Intake manifold gasket

11 INTAKE AND EXHAUST - Intake Manifold 5- <D6> Pre-removal and Post-installation Operation D Air Cleaner Removal and Installation D Air Pipe A Removal and Installation (Refer to P.5-.) 0 - Nm 8 Nm - 5 Nm 5 Nm Nm 9 8 Nm 8 Nm Nm Removal steps. Air inlet fitting. Brake booster vacuum hose. Vacuum hose. Throttle body assembly 5. EGR valve and pipe assembly 6. Turbocharger heat protector 7. Rear heat protector 8. Vacuum hose 9. Intake manifold D Turbocharger (Refer to P.5-6.) 0. Intake and exhaust manifold gasket

12 5- INTAKE AND EXHAUST - Intake Manifold REMOVAL SERVICE POINT AA" DELIVERY PIPE, INJECTOR AND PRESSURE REGULATOR REMOVAL Remove the delivery pipe (with the injectors and pressure regulator attached to it). Caution Care must be taken, when removing the delivery pipe, not to drop the injector. Front Protrusion INSTALLATION SERVICE POINTS "AA INTAKE MANIFOLD GASKET INSTALLATION Install gasket with its protrusion in the position illustrated. Protrusion O-ring High-pressure fuel hose Delivery pipe "BA HIGH-PRESSURE FUEL HOSE INSTALLATION. When connecting the high-pressure fuel hose to the delivery pipe, apply a small amount of new engine oil to the O-ring and then insert the high-pressure fuel hose, being careful not to damage the O-ring. Caution Be careful not to let any engine oil get into the delivery pipe.. While turning the high-pressure fuel hose to the left and right, install it to the delivery pipe.. Check to be sure that the injector turns smoothly. If it does not turn smoothly, the O-ring may be trapped, remove the high-pressure fuel hose and then re-insert it into the delivery pipe and check once again. INSPECTION Check the following points; replace the part if a problem is found. INTAKE MANIFOLD CHECK. Check for damage or cracking of any part.. Check for obstruction of the negative pressure (vacuum) outlet port, and for obstruction of the water passage or gas passage.. Using a straight edge and thickness gauge, check for distortion of the cylinder head installation surface. Standard value: 0.5 mm or less Limit: 0.0 mm

13 INTAKE AND EXHAUST - Exhaust Manifold 5- EXHAUST MANIFOLD REMOVAL AND INSTALLATION Pre-removal and Post-installation Operation D Front Exhaust Pipe Removal and Installation (Refer to P.5-.) <G6> 9 Nm 9 Nm - 5 Nm 9 Nm Removal steps. Exhaust manifold cover. Exhaust manifold. Exhaust manifold gasket

14 5- INTAKE AND EXHAUST - Exhaust Manifold <6A> - 5 Nm - 5 Nm 9 Nm - 5 Nm 9 Nm Nm Nm Removal steps. Heat protector. Exhaust manifold stay. Exhaust manifold. Exhaust manifold gasket

15 INTAKE AND EXHAUST - Exhaust Manifold 5-5 <D6> 9 Nm Nm 9 Nm Removal steps. Front heat protector. Engine hanger. Exhaust manifold D Turbocharger (Refer to P.5-6.). Intake and exhaust manifold gasket INSPECTION EXHAUST MANIFOLD CHECK. Check for damage or cracking of any part.. Using a straight edge and thickness gauge, check for distortion of the cylinder head installation surface. Standard value: 0.5 mm or less Limit: 0.0 mm

16 5-6 INTAKE AND EXHAUST - Turbocharger TURBOCHARGER REMOVAL AND INSTALLATION Pre-removal and Post-installation Operation D Engine Coolant Draining and Supplying D Engine Oil Draining and Supplying D Air Cleaner Removal and Installation D Intake Manifold Removal and Installation (Refer to P.5-8.) D Front Exhaust Pipe and Front Heat Protector Removal and Installation (Refer to P.5-5,.) 5 Nm 0 - Nm 8 Nm 7 Nm - 5 Nm 6 0 Nm 5 6Nm 9-5 Nm 7 - Nm 7-5 Nm 59 Nm 5 0 Nm 59 Nm - 5 Nm 8 59 Nm 7 - Nm 9Nm 0 AA" AA" AA" Removal steps. Air hose A. EGR valve and pipe assembly. Turbocharger heat protector. Oil pipe assembly A 5. Oil pipe assembly B 6. Water pipe assembly A 7. Water pipe assembly B 8. Oil return pipe 9. Rear heat protector 0. Exhaust fitting heat protector. Turbocharger assembly. Exhaust fitting assembly. Exhaust fitting gasket "AA. Turbocharger 5. Turbocharger gasket

17 INTAKE AND EXHAUST - Turbocharger 5-7 REMOVAL SERVICE POINT AA" OIL PIPE ASSEMBLY A/OIL PIPE ASSEMBLY B/OIL RETURN PIPE REMOVAL Caution After disconnecting the oil pipe, take care that foreign material does not enter the oil passage hole of the turbocharger assembly. INSTALLATION SERVICE POINT "AA TURBOCHARGER INSTALLATION. Clean the alignment surfaces shown in the illustration. Caution When cleaning, take care that no foreign material gets into the engine coolant or oil passages hole.. Supply clean engine oil through the oil pipe installation hole of the turbocharger. Compressor wheel INSPECTION TURBOCHARGER ASSEMBLY CHECK D Visually check the turbine wheel and the compressor wheel for cracking or other damage. D Check whether the turbine wheel and the compressor wheel can be easily turned by hand. D Check for oil leakage from the turbocharger assembly. D Check whether or not the waste gate valve remains open. If any problem is found, replace the part after disassembly. OIL PIPE ASSEMBLY AND OIL-RETURN PIPE CHECK Check the oil pipe assembly and oil-return for clogging, bending, or other damage. If there is clogging, clean it.

18 5-8 INTAKE AND EXHAUST - Turbocharger DISASSEMBLY AND REASSEMBLY "FA "EA Disassembly steps. Hose clip. Hose. Snap ring (E-ring). Turbocharger waste gate actuator 5. Coupling "DA 6. Turbine housing AA" "CA 7. Snap ring AB" "BA 8. Turbine wheel assembly 9. Compressor cover "AA 0. O-ring Snap ring DISASSEMBLY SERVICE POINTS AA" SNAP RING REMOVAL Lay the unit with the compressor cover side facing down and using snap ring pliers, remove the compressor cover attaching snap ring. Caution When removing the snap ring, hold it with fingers to prevent it from springing away.

19 INTAKE AND EXHAUST - Turbocharger 5-9 AB" TURBINE WHEEL ASSEMBLY REMOVAL Remove the turbine wheel assembly, striking the circumference of the compressor cover with a plastic hammer. The turbine wheel assembly may be a little hard to remove due to an O-ring put on the outer circumference. Turbine wheel assembly CLEANING. Use a clean cleaning oil commercially available. Do not use corrosive cleaning oils as they could damage to some parts.. Use a plastic scraper or hard brush to clean aluminum parts. O-ring REASSEMBLY SERVICE POINTS "AA O-RING INSTALLATION Apply a light coat of engine oil to a new O-ring and fit in the turbine wheel assembly groove. Caution When installing the O-ring, use care not to damage it. A damaged O-ring causes oil leaks. Dowel pin hole Dowel pin "BA TURBINE WHEEL ASSEMBLY. Apply a light coat of engine oil to the periphery of the O-ring.. Install the turbine wheel assembly to the compressor cover while aligning the dowel pin with the hole. Caution Use care not to damage the blades of turbine wheel and compressor wheel. Snap ring Chamfered edge "CA SNAP RING INSTALLATION Lay the assembly with the compressor cover facing down and fit the snap ring. Caution Fit the snap ring with its chamfered side facing up. Turbine wheel assembly Compressor cover

20 5-0 INTAKE AND EXHAUST - Turbocharger Dower pin "DA TURBINE HOUSING INSTALLATION Install the turbine housing while aligning the dowel pin with the hole. Caution Use care not to damage the blades of turbine wheel. Dower pin hole "EA COUPLING INSTALLATION Install the coupling and tighten to the specified torque. Coupling "FA TURBOCHARGER WASTE GATE ACTUATOR OPERATION INSPECTION Using a tester, apply pressure to the actuator and check the pressure when the rod starts moving (moves approx. mm). Standard value: Approx. 75 kpa Caution Do not apply a pressure of more than 09 kpa to the actuator. Otherwise, diaphragm may be damaged. Never attempt to adjust the turbocharger waste gate valve. Traces of contact INSPECTION TURBINE HOUSING. Check the housing for traces of contact with the turbine wheel, cracks due to overheating, pitching, deformation and other damage. Replace with a new turbine housing if cracked.. Operate the waste gate valve lever manually to check that the gate can be operated and closed smoothly.

21 INTAKE AND EXHAUST - Turbocharger 5- Compressor wheel Oil passage Turbine wheel Water passage COMPRESSOR COVER Check the compressor cover for traces of contact with the compressor wheel and other damage. TURBINE WHEEL ASSEMBLY. Check the turbine and compressor wheel blades for bend, burr, damage, corrosion and traces of contact on the back side and replace if defective.. Check the oil passage of the turbine wheel assembly for deposit and clogging.. Check also the water passage for deposit and clogging.. Check the turbine wheel and compressor wheel for light and smooth turning. OIL PIPE/OIL RETURN PIPE Correct or replace the oil pipe and oil return pipe if clogged, collapsed, deformed or otherwise damaged.

22 5- INTAKE AND EXHAUST - Exhaust Pipe and Main Muffler EXHAUST PIPE AND MAIN MUFFLER REMOVAL AND INSTALLATION Pre-removal and Post-installation Operation D Under Cover Removal and Installation <G6> Hanger installation bolt tightening torque, 0, 7 Nm 6 Nm Nm Nm 5 9 Nm 9-59 Nm 7 6 Nm Nm 9 Nm Nm Nm Nm 7 Main muffler removal steps. Main muffler assembly. Gasket. Hanger. Tail hanger 5. Rear hanger 6. Rear floor heat protector panel Center exhaust pipe removal steps AA" "AA 7. Oxygen sensor 8. Center exhaust pipe 9. Gasket 0. Hanger. Center hanger AA" Catalytic converter removal steps. Catalytic converter. Gasket Front exhaust pipe removal steps "AA. Oxygen sensor 5. Front exhaust pipe 6. Gasket 7. Hanger 8. Front exhaust pipe bracket

23 INTAKE AND EXHAUST - Exhaust Pipe and Main Muffler 5- Hanger installation bolt tightening torque, 0, 7 Nm Nm Nm 5 6 Nm <6A> 6 9 Nm 6 9 Nm 9-59 Nm Nm Nm 9 Nm Nm 8 0 Nm 0 6 <D6> Nm 9 Nm Nm Nm 5 Nm 9 Nm Main muffler removal steps. Main muffler assembly. Gasket. Hanger. Tail hanger 5. Rear hanger 6. Rear floor heat protector panel Center exhaust pipe removal steps AA" "AA 7. Oxygen sensor 8. Center exhaust pipe 9. Gasket 0. Hanger. Center hanger AA" Catalytic converter removal steps. Catalytic converter. Gasket Front exhaust pipe removal steps "AA. Oxygen sensor 5. Front exhaust pipe 6. Gasket 7. Hanger

24 5- INTAKE AND EXHAUST - Exhaust Pipe and Main Muffler REMOVAL SERVICE POINT AA" OXYGEN SENSOR REMOVAL INSTALLATION SERVICE POINT "AA OXYGEN SENSOR INSTALLATION MD998770