57987 Mercruiser STUD (.625-18 x 4.310)

1. Disconnect lubricant line (2) and drain line (3) from the turbocharger.2. Remove strainer (1) from the turbocharger. 3. Loosen hose clamps (4) and (7) and disconnect the hoses.4. Remove the nuts that hold turbocharger (5) and support (6).5. Remove the turbocharger and support as a unit.6. Make a separation of support (6) and the extension from the turbocharger.Install Turbocharger
1. Connect the extension and support (2) to the turbocharger.2. Put 5P3931 Anti-Seize Compound on the studs.3. Install the turbocharger gasket.4. Put turbocharger (1) and the support in position on the exhaust manifold. 5. Install nuts (5) and tighten them to a torque of 40 4 lb.ft. (54 6 N m).6. Connect the two hoses and tighten clamps (3) and (4). 7. Put the gasket in position and connect drain line (8).8. Put the strainer and gasket (6) in position. Make sure the strainer is installed with the screen in a down position.9. Put lubrication line (7) in position and install the bolts.end by:a) install mufflerDisassemble Turbocharger
start by:a) remove turbocharger 1. Put the turbocharger in position on tooling (A).2. Bend the tabs on the locks away from the bolts.3. Remove bolts (2), locks (1) and compressor housing (3). 4. Bend the tabs on the locks away from the bolts. Remove bolts (5), the locks and cartridge assembly (4) from exhaust housing (6). 5. Put the cartridge assembly in position on tooling (B).
Do not put a bending force on the shaft and wheel assembly when the nut is loosened.
6. Remove nut (7) from the shaft.7. Push the shaft assembly (9) out of the cartridge assembly. 8. Remove wheel (8) from the cartridge. 9. Remove seal ring (11) from the shaft assembly.10. Remove shroud (10) from the shaft.11. Bend the tabs on the locks away from the bolts. 12. Remove bolts (13) and locks (12).13. Remove the cartridge from backplate assembly (14). 14. Remove bearing (15) and collar (16) as a unit from the backplate assembly. 15. Remove bearing (15) from collar (16). 16. Remove seal ring (17) from collar (16). 17. Remove spring (18) from the backplate assembly. 18. Remove seal ring (19) from the cartridge housing. 19. Remove snap ring (21), bearing (20) and snap ring (22) from the cartridge housing. 20. Turn the cartridge housing over and remove snap ring (24), bearing (23) and snap ring (25).Assemble Turbocharger
1. Clean all parts thoroughly before they are assembled. Put clean engine oil on all parts. 2. Install snap ring (2), bearing (3) and snap ring (1) in the cartridge housing. 3. Turn the cartridge housing over and install snap ring (5), bearing (6) and snap ring (4). 4. Put seal ring (7) in position on the cartridge housing. 5. Put seal ring (8) in position on collar (9). 6. Put bearing (10) in position on the collar. Bearing (10) must be installed on the collar with grooved side up as shown. 7. Put bearing (10) and the collar in position on the cartridge housing as a unit. Make an alignment of the holes in the bearing with dowels (11). 8. Put spring (12) in position in backplate (13). 9. Put shaft assembly (14) in position on tooling (A).10. Fill the groove in the shaft with 6V2055 High Vacuum Grease.11. Put seal ring (16) in position on the shaft assembly.12. Install shroud (15) as shown.13. Put the cartridge housing in position on shaft assembly (14). 14. Install the backplate, locks (18) and bolts (17). Tighten the bolts to a torque of 75-90 lb.in. (8.5-10.2 N m).15. Bend the tabs on locks (18) up against the bolts. 16. Put compressor wheel (19) in position and install the nut.
Do not put a bending force on the shaft and wheel assembly when the nut is tightened.
17. Tighten the nut to a torque of 20 lb.in. (2.3 N m) plus 100°. 18. Put cartridge assembly (20) in a vise as shown. Make sure soft (brass) jaws are used.19. Install tooling (C) on the cartridge assembly to check end play. The end play must be .001 - .004 in. (0.03 - 0.10 mm). 20. Put turbine housing (21) in position on the tool (B).21. Put cartridge assembly (20) in position in the turbine housing. 22. Put 5P3931 Anti-Seize Compound on bolts (23).23. Put locks (22) in position and install the bolts. Tighten the bolts to a torque of 115 15 lb.in. (13 1.7 N m). Bend the tabs on the locks against the bolts. 24. Put compressor housing (24) in position. 25. Put locks (25) in position and install bolts (26). Tighten the bolts to a torque of 115 15 lb.in. (13 1.7 N m). Bend the tabs on the locks against the bolts.end by:a) install turbocharger