Timing Chains -----------

Hi all, im planning to change my timing chain on my 1.3 engine, a friend of mine bought a kit couple months ago and a week later after purchasing the kit someone decided to drive into him so insurance wrote the car off, any way his car was a 1.0L engine, would his 1.0L timing chain kit fit/work on the 1.3L, i.e. do the engins share the same chain?

Can i also when the car is running you hear a slight rattle, is it the main chain or the idle chain (camshaft) that makes the rattle?