Here's a question for you:
What's better than finding the right part on eBay for only $225, and arrival by Wednesday?
If you guessed "the previous owner finding the missing part, throwing in FOUR spare oil filters, and picking all that up for FREE on the way home from work," you'd be correct!
Photos below: It looks like it all fits together pretty well - though it doesn't have the silencer, it seems that may not be necessary - the '55 from Sirrotica's video doesn't have the silencer either, and it now visually matches the one on Ebay listed as a 55-56. I'm still not entirely sure how an oil bath air cleaner works, but I am resolved not to complain about good fortune.
Today's Two Questions:
1. How DOES an oil bath air cleaner work? Does it use the same kind of oil as the engine?
2. While I wait for the new sending unit, I think I'd better drain and refill the radiator. I remember reading somewhere that the coolant mix should be half water and half generic antifreeze? Do I need to add an anti-rust agent, if so, what and how much?