Vectra 150 cdti - Cam shaft setting question. - General patton

Quick question. ? When setting up twin cams inside rocker cover for a vectra cdti 2006.( When using the vx timing tool. )

Should BOTH pins / spindles that fit onto the alan key slots front and back click into place at same time. Both click into place together.

I hope someone gets what I mean !

Thanks

 

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