So I still have my 88 F-250 with 7.3 IDI non-turbo on the road. It runs great. One possible problem that is hard to detect is damage from cylinder cavitation caused by failure to maintain the cooling system properly. Not the fault of the owners, Ford sent out warnings to people in the late 90's because they were seeing more and more cylinder cavitation issues. Get some diesel coolant test strips from your tractor dealer and at least check the antifreeze to see if it may have been maintained properly.
Cavitation will cause cylinder damage that pretty much trashes the block. Also, the 7.3 block is a bored out 6.9 block, so the walls are thinner, you can't just bore it and pop new pistons in it, you need to install liners, but this engine does not have liners....
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let�s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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