Afternoon All, I was out in the car last weekend and an awful grinding noise started emanating from the alternator. Having removed it there seems to be quite a bit of axial play at the pulley (1-2mm), it spins freely when pulled from the alternator body but grinds any other time. The alternator is a Brise unit, similar in appearance to the 5020 model on their website. I've now taken it apart and one of the brushes is shot as the rubber they are house in is baked. Think there may have been some overheating... Anyway, this has led to me wanting to replace with an original alternator as I do not track the car so can't see much benefit in having it. There are 2 questions from here though, first is are there any major mounting modifications I will need to make for this? Second, the car has a Cheesman 4-2-1 exhaust fitted as well as a tall tower that appears to be for engine oil (not sure of purpose) in the area of the alternator. Will post a picture later, but if anyone has similar mods could they advise if space is an issue for a regulator alternator. Sorry for the long post. Thanks Ryan