Locking tool for bottom pulley

[Bubblebagmagic]

Hi guys how is everyone? Just a quickie, does any one know were I could get a locking tool from so I can change the timing chain and tensioner, car sounds like an old diesel van and that the only thing I can think of what's causing it to sound like this, if anyone has one I could lend will pay the postage and return, also is it a hard job to replace them parts? Many thanks guys

[Brigsy]

You wont need a locking tool to do it mate. Just get the marks on the cam and crank sprocket facing each other.

[Bubblebagmagic]

Thanks brigsy for the info mate