Thanks again for that, Grumpy.

I've gotten a better look at the reel & knife blades today; they appear never to have been resharpened. The paint isn't even fully worn off them. The rust is only light, surface corrosion. They don't appear to have been sitting in a puddle or anything. I should be able to take that rust off with a scotch brite (green plastic scrubber for dishes) or at worst, some 0-00 steel wool. Don't want to use emery cloth or sandpaper on it.

Just pulled off the cooling cowl so I could see the date code data. It reads:

MODEL TYPE CODE
80202 0880 01 82022303

From this I guess it is from 1982.

Still haven't been able to break loose the screws holding the drive belt cover on. They're slot-heads and are not budging even though I'm tearing the heck out of the slots. May have to Dremel the heads off and replace them with something else.

Thanks, mate smile