Volkswagen Golf/Jetta 2 manual

Cylinder head - dismantling and overhaul
Engine repair procedures 1.8 litre 16 valve / Cylinder head - dismantling and overhaul

Exhaust valves on the 16 valve engine are filled with sodium to provide improved heat dissipation. Special precautions are necessary when disposing of this type of valve, particularly where recycling of scrap metal is concerned.

To render each valve safe, it should be wiped dry then cut through the stem with a hacksaw. Throw the valve into a bucket of water, keeping well away from it until the chemical reaction has subsided.

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