Compressor Air Intake Turbocharger Installation

WARNING: This page is about a different variant/trim than selected.

Fig 1: Exploded View Of Compressor Air Intake Turbocharger With Tightening Sequence

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Turbocharger Heat Shield NOTE: Use a NEW heat shield with gasket.
2	Turbocharger Oil Return Pipe NOTE: Use NEW turbocharger oil return pipe gaskets on the oil return pipe.
3	Turbocharger Oil Return Pipe Bolt - Flange to Turbocharger (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 10 N.m (89 lb in)
4	Turbocharger
5	Turbocharger Nut (Qty: 4) CAUTION: Refer to Torque-to-Yield Fastener Caution . Procedure Tighten the NEW turbocharger nuts in sequence. Tighten the nuts a first pass to 15 N.m (11 lb ft). Tighten the nuts a second pass to 20 N.m (15 lb ft). Using the EN-45059 angle meter, tighten the bolt a final pass 60 Degrees. Special Tools EN-45059 Angle Meter For equivalent regional tools, refer to Special Tools .
6	Turbocharger Oil Return Pipe Bolt - Flange to Block (Qty: 2) Tighten 10 N.m (89 lb in)
7	Turbocharger Pipe Fitting NOTE: Use a NEW fitting and gasket. Tighten 35 N.m (26 lb ft)
8	Turbocharger Oil Feed Pipe CAUTION: All components at turbocharger side of oil feed pipe must be free of oil to ensure that proper torque is reached when tightening bolt at the turbocharger. Failure to ensure components are free of oil can result in over torque of fastener and damage to either fastener or turbocharger. CAUTION: Ensure that the turbocharger oil feed pipe does not rotate while torquing it. There should be a minimum 10 mm gap between the oil feed pipe and the v-band clamp. Failure to perform this could result in damage to the oil feed pipe and create an oil leak. CAUTION: When installing a quick-connect turbocharger oil feed pipe, ensure that the oil feed pipe is fully secured into the oil feed pipe fitting. An audible click will be heard when the oil feed pipe is seated. If the oil feed pipe is not fully seated, an oil leak can occur in certain RPM ranges and will cause significant component and/or vehicle damage. Due to the possibility of significant component and/or vehicle damage from an oil feed pipe leak, it is necessary to start the engine and inspect for signs of leakage around the connections after performing the repair. Procedure NOTE: Ensure all components, including threads in turbocharger at turbocharger side of oil feed pipe, are clean and free of debris. If necessary, clean all components with Low VOC brake cleaner or equivalent. Avoid allowing excessive cleaner to enter turbocharger. NOTE: Use NEW turbocharger oil feed pipe gaskets on the bolt at the turbocharger connection. NOTE: A suitable tool can be used to ensure there is a 10 mm gap between the feed pipe and turbine housing while tightening the turbocharger oil feed pipe. Install the pipe with the bolt at the turbocharger. Attached the bottom of the pipe to the turbocharger pipe fitting at the engine block. Ensure that the oil feed pipe is fully secured into the turbocharger pipe fitting. An audible click will be heard when the oil feed pipe is seated. Tighten 32 N.m (24 lb ft)
9	Turbocharger Oil Feed Pipe Clip
10	Turbocharger Pipe Fitting NOTE: Use a NEW fitting and gasket. Tighten 35 N.m (26 lb ft)
11	Turbocharger Coolant Feed Pipe Procedure: Attach the coolant feed pipe at the pipe fitting. Ensure that the coolant feed pipe is fully secured into the turbocharger pipe fitting. An audible click will be heard when the coolant feed pipe is seated. NOTE: Use NEW turbocharger coolant feed pipe gaskets on the bolt at the turbocharger connection. Rotate the coolant feed pipe upwards to attach the bolt at the turbocharger. Tighten 35 N.m (26 lb ft)
12	Turbocharger Coolant Return Pipe Procedure NOTE: Use NEW turbocharger coolant return pipe gaskets on the bolt at the turbocharger connection. Set the coolant return pipe in place and hand tighten the bolt at the turbocharger. Attach the hose to the thermal bypass pipe. Attach the hose at the water outlet assembly. Tighten 35 N.m (26 lb ft)
13	Turbocharger Coolant Return Pipe Bracket Bolt Tighten 10 N.m (89 lb in)
14	Positive Crankcase Ventilation Hose Fitting Bolt NOTE: The PCV hose and fitting assembly connection is permanent. Reinstall these components as an assembly unless new components are being used. Tighten 10 N.m (89 lb in)