Nephew's corvair.
Belt jumped off, took out the distributor cap.
He tried duct tape without any luck.
View attachment 220608
He diagnosed it as the idler pulley, which was not spring loaded. I doubt it, but he wanted to install the aftermarket, spring loaded version.
Maybe the weirdest mod I've made. The body panel is so thick, it is used to anchor a spring.
Of course this new assembly needs to be maintained..
View attachment 220609
I should draw some arrows. The engine is an air cooled flat 6. The belt is routed from vertical to horizontal.
There must be an electric fan option now...