agracat 254 engine problems: Chinese Tractors -- Jinma Farmpro Agracat  -- Chinese Tractors Discussion Forum and Review agracat 254 engine problems: Chinese Tractors -- Jinma Farmpro Agracat -- Chinese Tractors Discussion Forum

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Discussion Boards > Active Subjects > Messages as Posted > Chinese Tractors -- Jinma Farmpro Agracat Forum

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 09-05-2011, 16:37 Post: 180192
kiddan



Join Date: Aug 2011
Location: belton, mo
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5
 agracat 254 engine problems

i just bought an agracat 254 knowing it has engine ( Y385)problems. it show white smoke out the exhaust when i start it and it turns black and bogs down after a few minutes running. i loaded it on a trailer with a small incline yesterday and it gushed oil out of the crankcase vent. i'm into it cheap enough that i can afford to fix it. any help out there?






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 09-05-2011, 23:35 Post: 180203
greg_g



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Join Date: Jan 2004
Location: Western Kentucky
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 agracat 254 engine problems

White from a cold engine is normal. Black and bogging down suggests hydraulic fluid blockage. Overfull crankcase is probably hydraulic fluid from a blown pump seal. First place to look for blockage is right after the pump. There's a short pigtail, then a QD fitting. It's not unusual for that fitting to vibrate loose, or to become blocked with trash. Disconnect/reconnect that fitting to ake sure you get a positive seat. Start the engine and see if the bogging down and black smoke goes away. If not, shut down the engine, remove the fitting altogether, clean both sides and reassemble. Or if you don't want to waste the time, just replace it.

If that stops the bogging down and black smoke, you'll likely need - at a minimum - a new pump seal. But if you find even a hint of a crack in the pump housing, replace the whole thing. Oh, and you'll also need to top up the hydraulic fluid, and to change engine oil/filter.

//greg//






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 09-06-2011, 00:27 Post: 180205
richwaugh

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 agracat 254 engine problems

Could be as simple as the hydraulic lifter control for the TPH being yanked up so high that it is deadheading the pump and bogging the engine. Nevermind how I know this can happen, okay? At least I shut it down before I blew a seal or pump body. Smile

Rich






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Discussion Boards > Active Subjects > Messages as Posted > Chinese Tractors -- Jinma Farmpro Agracat Forum

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