I have a 73ish 870 diesel/PS that has been in the family since 1980 or so. About 4000 hours, less than 100 on a major overhaul, but that was 15+ years ago. It has been sitting in the barn for 8-10 years at least, only being started once every year or two, to splash some oil around.Now for the issue, the last time it was started, it idled perfectly at 800-1000 rpms, but as the speed increased it ran rougher and rougher to the point of coughing and sputtering. It has a good flow of fuel to the pump. It would seem to me that it is a stuck governor in the pump. Where exactly should I be looking. I have a top notch diesel shop 2 miles away, but money is tight and I'd rather not take in the pump if it can be avoided. Also I have a good low hour 770 pump(whole tractor for that matter, but it needs more $ worth of tires, rebuild, and radiator than the tractor is worth), will the pumps interchange (aside from turning it up)? Should I keep the 870 timing gear, or can I use the one on the 770 pump. I would like to get it running, as I can see myself farming a little this coming year, and need a little more tractor than my 1210 for tillage. Thanks, rich
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