Dazza44

Hi all I have just purchased a c3 1.4 hdi it's covered 150k with no record of cam belt change I would assume at that mileage it has been changed however going to change this myself I'm pretty confident round cars done a lot of belts on the old cvh engines if anyone remembers them my question is do I need any special tool to hold the cam and and crank pulley in place and are they bothare for tdc if anyone has done this job be great to hear how is or difficult a job it is on these cars many thanks darren