The answer to that question is, EVERY one of them! I got to be the quick change belt artist in the 6 months I owned the car.

Yeah, filling the gas tank was a hoot. I had a guy back into the fender and crease the fill tube. It'd only accept gas at a small trickle and of course the only time I needed gas was in the rain!

Yup, the old "fill up the oil and check the gas" machine. Stinking, warped, sheet metal valve covers. It would probably be still on the road if we'd had silicone gasket goo back then. All we had was good old Permatex #1 and #2. Oh yeah, and that weld your parts together, "Indianhead Shellac".

Fun car to drive but what a miserable POS to own. Learned to drive in the winter time peering through a 1" wide slot which is all the, ahem, "defroster" would clear.

We went through quite a Corvair stage. I musta owned 5 or 6 of them. They could be had for $50 all day. We bought them just for the engines. It was easier to replace an engine than to rebuild them. My partner and I had the engine swaps down to a science. We could completely swap engines in under an hour.