Engine temperature

[Flatbroke]

Another thing to check is make sure you have I believe it is 50 psi going to the belt tensioner bags. I see in the picture the your tensioner is very loose which is fine. But just makes me wonder if you have a major air leak not allowing the 50 psi to go to the bag allowing the belt to slip. My bus will go all winter and my belt bags are still have tension on them. Just a thought