CHANNEL 3979432 - Caterpillar

Removal Procedure
Start By:
Remove the exhaust back pressure valve from the exhaust elbow. Refer to Disassembly and Assembly, "Exhaust Back Pressure Valve - Remove and Install" for the correct procedure.
Illustration 1 g02476645
Typical example
Remove nuts (4) from turbocharger (6).
Make temporary marks on exhaust elbow (2) and turbocharger (6) to show correct orientation. Remove exhaust elbow (2) from turbocharger (6).
Remove gasket (5) (not shown) from turbocharger (6).
If necessary, remove studs (3) from turbocharger (6). Installation Procedure
Illustration 2 g02476645
Typical example
Ensure that the exhaust elbow and the outlet of the turbocharger are free from damage. Replace any components that are damaged.
If necessary, install studs (3) to turbocharger (6). Tighten the studs to a torque of 18 N m (159 lb in).
Position a new gasket (6) (not shown) onto turbocharger (6).
Install exhaust elbow (2) onto turbocharger (6). Ensure that the exhaust elbow is correctly orientated.
Install nuts (4) onto turbocharger (6). Tighten the nuts to a torque of 44 N m (33 lb ft). End By:
Install the exhaust back pressure valve to the exhaust elbow. Refer to Disassembly and Assembly, "Exhaust Back Pressure Valve - Remove and Install" for the correct procedure.