Hi, I am going to attempt to change the timing belt and water pump on my 1.8 TF. Whilst I am at it I will change the alternator belt as well. Never done it before so any tips would be welcome. Can't afford to take it to a garage to have it done, so needs must. My main question is this. I see kits advertised with different tensioner pulleys, both seem to say they are suitable for my car, so I am confused. Do I need this