Kev, DONT use it under any circumstances!

I had an engine wrecked because the roll pin dropped out and jamed up the dizzy/oil pump pulley.........of course the engine was still turning, and this proceeds to strip the teeth off the cambelt (on the non spinning pulley), then all but 2 of the valves get bent to buggery, and there was damage to the piston tops too

I'll leave you to figure out who built that engine - look no further than your sig