Cylinder Head Overhaul: Removal: Notes

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

WARNING:

The power cables carry high voltage when the electric powertrain system is energized. To avoid serious injury from electrical shock, do not turn on the system with the power cables disconnected.

CAUTION:

Please carefully read "Precaution for Handling Sodium-Filled Valves" and follow the instructions as the exhaust valves contain metal sodium .

The electric powertrain components are located in this area. The electric powertrain is a high-voltage system. You must be familiar with the electric powertrain system before working on or around it. Make sure you have read the electric powertrain service precautions before doing repairs or service.

NOTE:

Connect the HDS to the DLC, and monitor ECT SENSOR 1. To avoid damaging the cylinder head, wait until the engine coolant temperature drops below 100°F (38°C) before loosening the cylinder head bolts.
Keep the cam chain away from magnetic fields.
Identify the valves and the valve springs as they are removed so that each item can be reinstalled in its original position.
When removing the cam shaft, turn the crankshaft to align No. 1 position at top dead center (TDC).
The No. 1 journal is on the crankshaft pulley side.
Make sure that the removed parts, such as valves and valve springs, are free from rust when storing.