For Vauxhall, Opel Adam Astra-K, Corsa-E Turbo SIDI, EcoFlex, Turbo (1.0L LE1/B10XFL, B10XFT, B10XHT; 1.4L LV7/B14XE,B14XHT). It also allows the timing chain to be replaced and the cam is re-established in the correct position after the camshaft or valve is repaired.