Stuck Detroit!

Originally I hoped to get the bus running, but as u will see....
No go

[macelius]

Nice it's got the updated "wet" block. Try asking in Detroit Diesel Enthusiasts on Facebook, Vintage Bus Mechanics also has a bunch of old timer detroit guys.

[raygale]

When parked these engines have at least one cylinder with both the exhaust valves open and the inlet ports uncovered, natural draft through the engine carries moist air in through the engine, noted the rust on the liner ports, frozen blower is more common on lay over engines where the blower housing can't drain through into the engine. You will most likely have some stuck valves as well.