Do you know how much fluid it holds?
tensioner only gets tightened finger tight right?
The rubber oring seal works well but the bolts should be good and snug. I dont have a torque spec but they almost stop when have them tight enough. Dont tighten them too much beyond that feelng or threads will be gone. seal will doo the work.So I take it you don't tighten it very tight?
89 Inch Pounds and I always go with 350 ml of fluid even though that overflows the level plug.