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The exhaust manifold on Ruby's 196 OHV engine was cracked. The previous owner had fixed it with a hose clamp; however, as it was cracked all of the way through, it leaked exhaust:
Luckily, I found an exhaust manifold at auction for $25 in good shape. Of course, this is a cast iron part that is specific to the 196 OHV engine, so it is difficult to find. I was lucky. The big trick was removing the bolts that had held the manifold to the exhaust pipe for 42 years. I decided to cut the manifold. The metal cuts fairly eaily with a reciprocating saw and a metal cutting blade. Make sure you plug up any holes that might get filings in them, particularly the oil filler tube hole and the carburetor before you start doing pretty much anything in your engine compartment (please read this site's terms of use). I was unable to turn 2 of the three nuts, even after removing most everything from the side of the engine, including the battery tray and starter. I had to drill out the top of two of the studs:
After drilling out the top of the studs I was able to remove them from the bottom without damaging the flange.
Part 2
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