Not Cobra related, but motor related...
Here's the situation: My dad restored a Jacobs ("Shakey-Jakey") radial engine for a Cessna 195. He won't be using the motor for about 3 years (while he restores the rest of the plane). He found a large metal tub to set the completed engine into. His plan was to submerge the engine in motor
oil for the next three years, but since he needs about 220 gallons, this promises to be an expensive proposition. We're trying to figure out what other (cheaper) fluids would work well to preserve the motor. The fluid must have a very low or zero sulfur content. The fluid must not be harmful to steel, aluminum, cast magnesium, copper, or various gasket materials. Any ideas? Based on the prices of motor
oil, it would cost about $400 or more to submerge the motor in
oil.
Would diesel fuel work? What's the sulfur content of diesel?
Another option would be to place objects in the tub with the engine to displace additional oil. But the objects must be cheaper than the oil being displaced and concrete blocks are out of the question because of acid content, or something like that. (Hmm... maybe bags of sand or rock would work? Hmm...)
Sorry, for the weird question, but I figured you guys might have some good ideas.
Keith