Preliminary Work: Notes

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• The valve-stem seals can be replaced when installed. 
• Depending on the tool setup, peripheral components at the sides, such as plenum panels or servo oil reservoirs, may first have to be removed 
• The tool can be adjusted to all M6 or M8 studs or internal threads (tool details below). 
• The angle of the assembly bar lever can be adjusted according to space requirements. 

1. Remove the camshafts. → 150520 REMOVING AND INSTALLING CAMSHAFTS ON 4.8-LITRE DFI ENGINES 
2. Take hydro-tappets out of the cylinder head and lay them on a clean surface, arranged according to cylinders and valves. Do not confuse components. For details, see →  WM 155920 REMOVING AND INSTALLING HYDRAULIC TAPPETS ON DFI ENGINES  

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