A complete pony engine overhaul kit is available from H & J Machining in ND for about $1700. Add in the labor and you are well over $2000 to do it right. So, a good running pony engine is worth about $1200 in our area. There are two types of four cylinder pony engines. The ones used in JD 70s and Early JD 720s, and improved pony engines used in late 720s and 730s. The improved ones have a brass serial tag on the engine block. The used pony engines that are available came from tractors converted to electric start and have a high probability of having had problemsthus their removal/replacement.
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Today's Featured Article - A 1937 John Deere Unstuck - by Gary Hickman. Here is my story of how I got the pistons out of a 1937 JD B that the engine had been stuck for about 14 years: About 12 years ago my Dad gave me one of the tractors I ran as I was growing up on our farm in central Nebraska. The engine on this tractor, a 1937 John Deere "B", had been stuck for 2 years before he gave it to me. This last spring (1999) I hauled the tractor to our 2 acre lot in St. Libory Nebraska where it joined my antique machinery collection, at that time a 1929 Caterpillar T
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