Purchased a beautiful (used but almost 0 rust intake/exhaust manifold for my 235. Mines a pitted rusty exhaust leaking piece of %?@#.
As soon as I got it home, I had to take it apart. Just a bit of carbon build. But the damper is stuck. I sprayed a penetrating oil all over the shaft and left over night. Still stuck. Tried a bit of propane heat-nothing. Taped it 'very' light w/ very small hammer. Won't budge a hair.
Ideas?
jeff