Although the blocks are the same the cranks where different on the mid 68 and earlier 4000 engines. Gas engines were 192 ci with a 4.2" stroke, diesels were 201 ci with a 4.4" stroke.
After mid 68 gas engines were ungraded to 201 ci.
Early 5000 gas and diesels were 233 ci, they where upgraded in mid 68 to 256 ci.
I grew up on a 850 gas 5 spd and loved that tractor, always started and ran good with plenty of power for it's size.
But the type of farming we did then plowing, working the ground for crops, haying, tending to and feeding cattle during winter months. That tractor was started and used everyday but Sunday pretty much year round.
Today I only have diesel Ford tractors, yes rebuilding a inj pump is costly but if one drains and changes fuel filters regularly along with making sure fuel cans or tanks are drained of water you'll rarely have issues with the injection pump.
Some of the tractors on this farm have never had the inj pumps worked on, others have for various reasons, but just like carburetors water is the main enemy of any fuel system, unfiltered trash is second.
To me diesel fumes or gas odors from a fuel loaded gasser will both have me opening the shop doors pretty fast.
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Today's Featured Article - Product Review: Black Tire Paint - by Staff. I have been fortunate in that two of my tractors have had rear tires that were in great shape when I bought the tractor. My model "H" even had the old style fronts with plenty of tread. My "L" fronts were mismatched Sears Guardsman snow tires, which I promptly tossed. Well, although these tires were in good shape as far as tread was concerned, they looked real sad. All were flat, but new tubes fixed that. In addition to years and years of scuffing and fading, they had paint splattered on
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