Along with what Pete and owen said may i add that on a 806 hard starting can be due to valve recession due to normal ware and also valves out of adjustment , then there is the injectors are they cracking at the proper pressure or are the dribbling When and 806 is wright and i mean wright they will start without either down to 0 and below. . But when they have had a steady diet of either to light them god only knows what is wrong . And like the one guy said a compression test will tell some . As either can knock the rings out and if the top rings are broken then you will be down on compression .I have done many 806 diesels and when they come out rebuilt they start like they did when new but myself i do get a bit carried away on my work and when i do one i do everything and nothing is left to do on a major overhaul . They are line bored and the cylinder bore is done off the centerline of the crank the head is done to spec. and valve protrusion is dead on the pump is done by a good friend that was also a I H mechanic and turned to doing injection work and he does the pump and injectors for me and they are dead on the first time . So with out myself , Pete or Owen looking at and checking this tractor ourself's we are all shooting in the dark . we try our best to give good advice and help . BUT there is no majic pill that will fix it if there is problems that we do not know about . So it may just take a pump rebuild or it may take a total overhaul and i will say this to you , a D361 is not the engine for a novice to rebuild and you need to know all the quarks of this engine or you could spend a bunch of money and had it come unglued in the first fifty hours and scrap the whole thig as i have seen this way to many times where guys did not want to pay to have it done and tryed them selfs only to scrap a block and crank and one guy i know did not lean the first time and scrapped five blocks and cranks before he gave up and had me do it . Would have been a lot cheeper to pay me the first time around .
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Today's Featured Article - Tractor Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
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