Cylinder Head: Removal
WARNING: This page is about a different variant/trim than selected.
NOTE:
Do not loosen or remove the crankshaft pulley bolt without first installing the special tools as instructed in this procedure. The crankshaft pulley and the crankshaft timing sprocket are not keyed to the crankshaft. The crankshaft, the crankshaft sprocket and the pulley are fitted together by friction, using diamond washers between the flange faces on each part. For that reason, the crankshaft sprocket is also unfastened if the pulley bolt is loosened. Before any repair requiring loosening or removal of the crankshaft pulley bolt, the crankshaft and camshafts must be locked in place by the special service tools, otherwise severe engine damage can occur.
NOTE:
During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan can cause engine failure.
- With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .
- Release the fuel system pressure. Refer to: Fuel System Pressure Release .
- Remove the turbocharger. Refer to: TURBOCHARGER .
- Remove and discard the engine oil filter.
- Remove the following items:
- Refer to: FUEL INJECTOR .
- Refer to: Valve Tappets .
- Remove the bolt and position the ground wiring harness aside.
- Release the tabs and disconnect the coolant tube.
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- Disconnect the coolant hoses.
- Disconnect the ECT sensor electrical connector.
- Slide the insulator up and disconnect the CHT sensor electrical connector.
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- Remove the bolts and the cylinder head.
- Discard the bolts.
- Remove and discard the cylinder head gasket.