IK1200938 ­ Replacement Procedure for High­Pressure Turbocharger Center Section on ... Page 1 of 23

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Title : Replacement Procedure for High-Pressure Turbocharger Center
Section on EPA10 and EPA 10 With HD-OBD Emissions MaxxForce DT, 9,
10 Engines
Applies To : EPA 10 and EPA 10 with HD-OBD Emissions MaxxForce DT, 9,
10 Engines
CHANGE LOG:
ADDED A STEP FOR CLEANING HPCAC IF OIL CONTAIMINATED (ARTICLE VERSION 2)
ADDED SRT'S FOR REMOVING HPCAC AND CLEANING (ARTICLE VERSION 2)
DESCRIPTION
This procedure provides instructions for replacing the High-Pressure (HP) turbocharger center section
(cartridge). This iKNow article is up temporarily until the kit for the turbo center section becomes
available.
PARTS INFORMATION
Part #

Description

Qty.

1889486C92

High Pressure Turbocharger
Assembly

1

1881990C1

Pipe Seal/ Crossover Tube Seal (ISC
1
not equipped, If needed)

1858048C2

ISC Outlet O-Ring (ISC equipped, If
1
needed)

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NOTE: If the center section is not available due to part stocking or supply issues, use a

COMPLETE turbocharger assembly and simply use the new center section from the kit.
Return the old center section and the NEW turbine housing together in the box. The
turbine housing is NOT to be used.
REPAIR PROCEDURE
REMOVAL
1. Bring truck into shop and park on flat surface with wheels turned fully to the right.
2. Shift transmission to Park or Neutral, set parking brake, and install wheel chocks.
3. Unlatch and open hood.
4. Open battery box and disconnect negative battery cable.
NOTE: Draining of the cooling system and removal of the oil soot centrifuge is not required to perform
this procedure.
5. Remove four bolts, washers, and right side inner fender.

Figure 1. MAF Sensor and Air Compressor Inlet Hose.
1. Air box
2. Air compressor inlet hose
3. LP turbocharger inlet elbow duct
4. LP turbocharger inlet elbow duct clamp
5. MAF sensor connector
6. MAF sensor

6. Disconnect MAF sensor connector (Figure 1, Item 5) from MAF sensor (Figure 1, Item 6).

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7. Disconnect air compressor inlet hose (Figure 1, Item 2) from air box (Figure 1, Item 1).
8. Loosen air box to LP turbocharger inlet elbow duct clamp (Figure 2, Item 4) and remove LP
turbocharger inlet elbow duct (Figure 1, Item 3).
9. Remove bolt, two nuts, and air box with bracket from vehicle.

Figure 2. HPCAC Duct.
1. Clamp (2)
2. HPCAC duct
3. Bolt
4. P-clamp
10. Remove bolt (Figure 2, Item 3) from P-clamp (Figure 2, Item 4) on HPCAC duct (Figure 2, Item 2).
11. Loosen two clamps (Figure 2, Item 1) and remove HPCAC duct (Figure 2, Item 2).

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Figure 3. Turbocharger 2 Wastegate Control (TC2WC) Valve.
1. Bolt (2)
2. TC2WC
3. Insulator (2)

NOTE: Perform Steps 12 and 13 of removal procedure if the engine is not equipped with Interstage
Cooler (ISC).
12. Remove two bolts (Figure 3, Item 1) and insulators (Figure 3, Item 3) from TC2WC valve (Figure 3,
Item 2) and position for access to High Pressure (HP) turbocharger.

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Figure 4. Crossover Tube.
1. V­band clamp
2. Crossover tube

13. Remove V-band clamp (Figure 4, Item 1) and crossover tube (Figure 4, Item 2).

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Figure 5. Interstage Cooler (ISC).
1. M8 x 110 bolt (2)
2. M8 x 110 stud bolt (2)
3. Interstage cooler (ISC)

NOTE: Perform Steps 14 through 17 of removal procedure if equipped with Interstage Cooler (ISC).
14. Remove two bolts (Figure 5, Item 1) and stud bolts (Figure 5, Item 2) from Interstage Cooler (ISC)
(Figure 5, Item 3).

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Figure 6. Turbocharger Inlet Elbow.
1. Turbocharger inlet elbow
2. V-band clamp
15. Remove V-band clamp (Figure 6, Item 2) from turbocharger inlet elbow (Figure 6, Item 1).
16. Raise ISC from valve cover and remove turbocharger inlet elbow.
17. Remove crossover tube lip seal using ISC Seal Remover tool according to removal procedure in the
Dual Stage Turbocharger and Exhaust Brake section of the EGES­450 Engine Service Manual.

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Figure 7. HP Turbocharger Oil Supply Tube.
1. M6 x 16 bolt
2. Oil supply tube assembly

18. Remove bolt (Figure 7, Item 1) from oil supply tube (Figure 7, Item 2). Discard bolt.
19. Apply rust penetrating oil to oil supply tube (Figure 7, Item 2) and disconnect from HP turbocharger.
20. Remove and discard oil supply tube O­ring.

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Figure 8. Wastegate Actuator.
1. Turbine v­band clamp
2. Wastegate actuator
3. M8 x 16 bolt (2)

CAUTION: When positioning wastegate actuator for access to HP turbocharger, make sure not to bend
or damage wastegate actuator rod, and make sure not to position in a way that adjustment would be
compromised. Failure to do so may result in damage to equipment.
21. Remove two bolts (Figure 8, Item 3) and position wastegate actuator (Figure 8, Item 2) for access to
HP turbocharger.
22. Remove turbine V-band clamp (Figure 8, Item 1) from HP turbocharger.

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Figure 9. Oil Drain Tube.
1. Bolt
2. Oil drain tube
3. P­clamp
23. Remove bolt (Figure 9, Item 1) from P-clamp (Figure 9, Item 3) on oil drain tube (Figure 9, Item 2).
24. Using a soft­blow mallet, tap HP turbocharger center section until loose and remove from turbine
housing and oil drain tube.
25. Using a clean emery cloth, clean turbine housing and mating surfaces.

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Figure 10. O-rings.
1. O­ring (2)
2. Oil supply tube
3. Oil drain tube
26. Remove HP turbocharger oil drain O-ring (Figure 10, Item 1). Discard O-ring.
27. Place new high pressure turbocharger on bench.
28. On the new high pressure turbocharger remove the 2 actuator bolts.
29. Remove the turbine V-band clamp and save for installation on new turbocharger center section on
engine.
30. Remove new turbo center section from new turbine housing.
INSTALLATION
1. IF HPCAC IS INTERNALLY CONTAIMINATED WITH OIL REFER TO TSI-13-12-17 FOR CLEANING
PROCEDURE. IF THE LINK IS BROKEN YOU CAN FIND THE TSI HERE.
NOTE: Make sure to lubricate O-rings with P-80® or equivalent lubricant.
2. Install new O-ring (Figure 10, Item 1) onto oil drain tube (Figure 10, Item 3).
3. Install new O-ring (Figure 10, Item 1) onto oil supply tube (Figure 10, Item 2).

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Figure 11. Priming HP Turbocharger Center Section.
1. HP turbocharger center section
2. Oil supply port
3. Turbine wheel nut
4. Oil drain port
4. Using 15W40 engine oil, prime new HP turbocharger center section (Figure 11, Item 1) oil supply port
(Figure 11, Item 2) while spinning by turbine wheel nut (Figure 11, Item 3) until oil is seen seeping from
oil drain port (Figure 11, Item 4).
WARNING: Make sure oil drain tube is fully seated in HP turbocharger center section while installing HP
turbocharger into turbine housing. Failure to comply may result in injury to personnel and / or damage
to equipment.
5. Install new HP turbocharger center section onto the HP oil drain tube while installing into the turbine
housing.

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Figure 12. Wastegate Actuator.
1. Turbine v­band clamp
2. Wastegate actuator
3. M8 x 16 bolt (2)

6. Install turbine V-band clamp (Figure 12, Item 1) on HP turbocharger.
7. Using torque wrench, torque turbine V-band clamp (Figure 12, Item 1) to 13 lb-ft (17 N•m).
CAUTION: When installing wastegate actuator, make sure not to bend or damage wastegate actuator
rod, and make sure not to position in a way that adjustment would be compromised. Failure to do so
may result in damage to equipment.
8. Install wastegate actuator (Figure 12, Item 2) with two bolts (Figure 12, Item 3).