leonz
Super Member
Gap is 1/8 at the the most I use to do the rubber flaps to walk behind blowers. I'm thinking it just might be the blower design
It is not the design, you need the impeller kit for your PUMA as you have a wide gap there. I would use some fluid film until you have the time to add the rubber impeller paddles and the sheet metal plates to hold the rubber in place.