Petrol Engines: For alignment of the cam and crankshafts. Also enables correct installation of the camshafts with the cam cover. This tool is used for the alignment of the camshafts & crankshafts on in -line 4,5&6 cyulinder. Twin can motors through 2006. May also be used to align the camshafts w/the cam cover. Applicable: VOLVO models 700,800,850,900, 960,C70. Coupe and Conv, S40,S60,S70,S90,V70-2000, V70XC, XC70,V90,XC90.