I don't know what access is like on the Puma, but I've done a 1.25 on a Fiesta and a 1.6 on a Focus. I'm a DIY'er by the way and found them quite straight forward to do...

Getting TDC with the help of an extenion bar down the spark plug hole. It is east to get things 180 degrees out for the cam locking bar, I just find this quicker to get TDC before putting the pin in the block..


Remove the plug and then insert this pin into the block, then slowly rotate crank until it is stopped by this pin.


Then put the locking bar in for the cams. This might not go in on both cams if the belt has been on the car for a long time but should only be a knats cock off. Once the old belt is off there are flats on the cams you can get a spanner on to turn them.


Always a good idea to to the waterpump although this can be done without disturbing the cambelt on these. Access is just easier to do it at this time.




And new belt on




Remove the cam locking bar and pin, turn it over by hand at, I do it four times, then put the timing tools back in to check, all good, put it back together.

It is also a good idea to change the aux belt tensioner a while it is all off.