help troubleshooting missing MD

Posted by mschwartz on April 27, 2014 at 23:39:33 from (216.163.99.68):

Went to look at a MD this afternoon. Full of antifreeze, engine oil black. Started on gas seemed fine, not real smooth at first but has only been started a few times in the past ten years so probably needs good tune up. Switched over to diesel fine but was smoking(raw unburnt diesel). Cracked bleeders at injectors after letting run for 15 minutes and determined that number one was the problem. With the bleeder open and squirting diesel the smoke cleared up. Close the bleeder and it would smoke again. After running another 15 minutes it started popping and cleared up. Good oil pressure and fuel pressure by the guages and no noticable blowby out the breather or the oil fill. Shut the tractor down and waited 5 minutes to restart and tractor was missfiring again. Temp was around 40 degrees and I am pretty sure the thermostat is stuck open or missing as I was unable to get temp guage to move even with a pair of my coveralls over radiator. Unable to drive or otherwise load the engine due to missing parts on the attached backhoe. Should I be looking into a bad injector or a sticking valve or something else? Agreed to purchase tractor so looking for ideas for when I get it home. Thanks for your help.

Replies:

• Re: help troubleshooting missing MD Janicholson 18:49:59 04/28/14 (0)
• Re: help troubleshooting missing MD pete 23 10:04:41 04/28/14 (0)
• Re: help troubleshooting missing MD caterpillar guy 06:00:45 04/28/14 (0)
• Re: help troubleshooting missing MD ncdiesel48 05:16:51 04/28/14 (0)
• Re: help troubleshooting missing MD 55a 04:38:00 04/28/14 (0)
• Re: help troubleshooting missing MD Dieseltech 04:04:48 04/28/14 (0)

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