I’d sell it, I ran out of plutonium so it doesn’t do me any good....I haven’t found a way to get it to run on garbage yet like in the movie....sounds like you could use a heavier duty muffler chain...get the flux capacitor to work and you can go back to 1965 and get a better chain! I hope your muffler isn’t damaged, those bearings can get expensive too. I’ll let you have it if I can pick out one fish from your fish tank.