Squeeky Pulley After Headgasket Repair

[JethroJay]

Okay so a clown has had his mitts on my girls car (not knowing what the flying clown suits he was doing) well so I think anyway, he took ALL the pulleys off the car (don't know why, thought he'd be funny I guess) car runs fine just the pulley is squeeky, her dad sprayed it with WD40 (WRONG MOVE PRICK) could it need a new one or what? The car runs fine (sounds like a 1.1, lol) I've not noticed anything different in the car at all, just the squeeky pulley (He didn't even change the spark plugs, or even the timing belt while it was apart) any ideas? It's a 1.4 8V SOHC!