Hi and welcome to the forum Alex.
There is lots of info for repairs in the "How to Guides" tab at the top of every page.
Don't be afraid to ask, the only silly question is the one you didn't ask.
James
Home to black Alfa Romeo 159 3.2 V6 Q4 ,green MGF VVC and red MG Maestro T16.
MG - the friendly marque.