In Reply to: 9n belt tensioner posted by Jim Menke on October 31, 2022 at 15:49:09:
You actually do not need one. I have a 1946 2N that I have owned and used for over 25 years and it never had one in all that time. Just tension up the belt to spec, tighten the bolt up tight and it will not move. I do install two lock washers, one under the head and one under the nut, needed or not.