37612 Mercruiser SCREW, EXHAUST MANIFOLD TO CYL. HEAD (1 1/4")

1. Remove the coolant from the engine. Disconnect regulator tube assembly (2) from fitting.2. Loosen clamps (3) on tube assembly (1) and elbow. Remove tube assembly (1) and gasket from aftercooler and carburetor. 3. Disconnect tube assembly (5) from fitting. Loosen clamp (4) and remove tube (6) and gasket from aftercooler and carburetor.4. Loosen clamp (7) on aftercooler elbow. 5. Remove four bolts (8) and make a separation of the auxiliary water pump elbow and aftercooler. Remove ten bolts (9) that fasten the aftercooler to the flywheel housing. 6. Disconnect tube assembly (12) from the turbocharger lubrication valve.7. Remove elbow (10) from turbocharger.8. Remove four bolts (11) to remove the turbocharger lubrication valve from the channel. 9. Remove bolt and brackets (16) from aftercooler housing. Disconnect and remove tube assemblies (14) and (17) from regulator assemblies.10. Disconnect tube (15) from turbocharger cartridge housing.11. Bend tabs on lock and remove two bolts (13) from the turbocharger supply line. 12. Disconnect turbocharger cartridge housing tubes (20) from cover. Remove four bolts (18) that are used to fasten turbocharger pipe to support.13. Remove six bolts (21) that are used to fasten the support assembly in position. Remove support assembly (19). The cover is removed for access to bolts that fasten the aftercooler to the flywheel housing. 14. Remove four bolts (22) from the cover. Remove cover (23). 15. Remove bolt (24) and clip from channel. Remove tube assembly (12). 16. Fasten nylon straps and hoist to aftercooler (25). 17. Remove six bolts (26) that fasten the aftercooler to the flywheel housing.18. Remove aftercooler from engine. Weight of aftercooler is 236 lb. (106 kg).Install Aftercooler Housing
1. Fasten nylon straps and a hoist and put aftercooler housing (1) and gasket in position on engine. 2. Install sixteen bolts (2) that hold the aftercooler housing to the flywheel housing. 3. Put tube assembly (3) in position on channel and install bolt through clamp. 4. Put gasket and cover (4) in place and install four bolts.5. Install six bolts to fasten support assembly (7) in position. 6. Install four bolts to fasten pipe (5) to support.7. Install two tube assemblies (6) from turbocharger cartridge housings to cover (4). 8. Install tube assemblies (8) and (11) to the regulator assemblies. Install bolt to hold brackets (10) in position on aftercooler housing. Put gasket and oil supply line (9) in position on top of turbocharger cartridge housing. Install lock and two bolts in position. 9. Install turbocharger lubrication valve in position on channel. Install four bolts (13) and nuts to hold valve in position.10. Install tube assembly (15) in position on the turbocharger lubrication valve.11. Inspect and make a replacement of seals on pipe if damaged.12. Put engine oil in turbocharger bore and install elbow assembly (12) and gasket in position in turbocharger and aftercooler housing. Install clamp (14) to hold elbow to housing. 13. Install tube assembly and gasket (17) in position on the aftercooler housing. Install clamp (18). Install tube assembly (16) to elbow fitting. 14. Put elbow (21) and tube assembly (20) in position on the aftercooler housing and install gaskets and clamps (22) to hold them in position. Install tube assembly (19) to elbow fitting.15. Install a new gasket and the auxiliary water pump elbow (23) in position on the aftercooler housing.end by:a) install air cleaners