Well i just wanted to catch an early problem before it happened. Anyways my track has studs in it. And since it does the heat exchanger has stud tracks left in it. By this i mean the studs have scraped up against it. I was wondering about how long will it be before it needs replacing? My neighbors track also has studs in it and his heat exchanger looked exactly the same until.............an stud flew off and put a hole right through it. That put him out for the rest of the season and costing him over a hundred dollars because it went all the way through it and then some. Don`t want this to happen to me so just wanted to catch it early. anyone know? o by the way if you don`t know where it is its up in front of the sprockets.it looks like a radiator. Thanx again.