stupid dryer belt tensioner design

This dryer was a trooper before this. Only thing I changed in the last 15 years was the belt (2x now) the gas servo coils (8 bucks for both) and an ignitor, i think it was $15, and I bought the dryer used! So they seem to be well built beyond this pathetic tensioner. I can pretty much tell you how to fix anything on this now. Tensioner is 2 5/16 screws and 2 more at the lint trap flange. Can do it in about 10 minutes. Ignitor and gas servo coils a little more digging. Bad coil(s) makes the gas go out as soon as its lit, you can hear them click off after the woosh of the flame igniting. They weaken and don't hold open the gas valve. Ignitor can be viewed through a little plug at bottom left of dryer front next to door. Pop it and you can see inside the heating chamber. The white glowing thing is the ignitor (turns off by a thermo relay when the gas ignites) and the flame should stay on when the dryer is in operation. If it does not dry the clothes but they are warm after an hour, your coils are bad and the only heat it generates is the ignitor trying to ignite non present gas or gas that keeps turning off. You'll hear them click on then off. Now we are all Maytag repairmen!