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Farm Machinery
Classic Machinery
Mccormick b250 won't start
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<blockquote data-quote="Jezz40" data-source="post: 6912089" data-attributes="member: 148424"><p>Hello all I have a B250, So brief History, when I got the tractor it ran but not great, alot of blowby and over heat after a good workout, Still slowly managed to plow my field before winter, Did notice decline of power slowly towards the end of the season, ran better after installed the glowplug coversion, Still power loss when reversing and working really. Then Full shut down, Rebuilt the engine, Sleeves were good but new pistons Bearings and rings, a few were broken and 3 bearings from before but still ran LOL. Now its all together but seems its a fuelling problem, cleaned all the lines, pump looked at, all valves move diesel comes out at injectors but No power stalls under load. trying to reverse with a simple harrow lifted will pretty much kill it, Still tries to ever heat aswell, new water pump was installed and thermostat. the 3,4 injector line leak from the threads at the top of the pump, where the flared head is for the valves, also the kill lever fully pulled the the stoppers rotate to the front of the engine, when pushed in they are at 90degrees, When I pull the stop lever out from the pump a bit they come full 180 and then try to start you get black smoke and grunt when trying to start <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> but it returns to 90 on its own and no smoke or power, I am thinking the leak on 3 and 4 I have no idea why it would leak out of the top of the pump, the lift pump ?</p></blockquote><p></p>
[QUOTE="Jezz40, post: 6912089, member: 148424"] Hello all I have a B250, So brief History, when I got the tractor it ran but not great, alot of blowby and over heat after a good workout, Still slowly managed to plow my field before winter, Did notice decline of power slowly towards the end of the season, ran better after installed the glowplug coversion, Still power loss when reversing and working really. Then Full shut down, Rebuilt the engine, Sleeves were good but new pistons Bearings and rings, a few were broken and 3 bearings from before but still ran LOL. Now its all together but seems its a fuelling problem, cleaned all the lines, pump looked at, all valves move diesel comes out at injectors but No power stalls under load. trying to reverse with a simple harrow lifted will pretty much kill it, Still tries to ever heat aswell, new water pump was installed and thermostat. the 3,4 injector line leak from the threads at the top of the pump, where the flared head is for the valves, also the kill lever fully pulled the the stoppers rotate to the front of the engine, when pushed in they are at 90degrees, When I pull the stop lever out from the pump a bit they come full 180 and then try to start you get black smoke and grunt when trying to start :) but it returns to 90 on its own and no smoke or power, I am thinking the leak on 3 and 4 I have no idea why it would leak out of the top of the pump, the lift pump ? [/QUOTE]
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Mccormick b250 won't start
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