THIRTY piston groups

microlink

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The THIRTY had a number of different pistons depending on altitude and fuel. Did the low compression (kerosene) piston have 4 or 5 rings? What was the compression ratio on gasoline and kerosene? If the Ensign carb was used for gasoline and alcohol will this engine be happy with the crap gasohol of today?

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Thu, Oct 9, 2014 8:40 AM

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Our channel highlights machines from the earliest Holt and Best track-type tractors, equipment from the start of Caterpillar in 1925, up to units built in the mid-1960s.