The JD 466 block is used from a low of 105 Horse power to the high of over 225 horse power. The main difference where the injection pumps, injectors, oil cooled pistons, turbos and intercooling.
So the JD 2555 injection pump is set at one fuel delivery setting and the JD 2755 injection pump is set at a slightly higher fuel delivery setting. also the JF 2555 naturally aspirated injection pump would be set higher than the injection pump on the turboed JD 2555. The Turbo would be more efficient on the fuel it used.
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Today's Featured Article - Restoration Story: 1964 JD 2010 Dsl - Part 2 - by Jim Nielsen. Despite having to disassemble the majority of my John Deere 2010's diesel engine, I was still hopeful I could leave the engine-complete with crankshaft and camshaft-in the tractor. This would make the whole engine rebuild job much easier-and much less expensive! I soon found however, that the #4 conrod bearing had disintegrated, taking with it chunks of the crankshaft journal. As a resul
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