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NH8160 with a bad cough!
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Posted by Kent in NB on June 22, 2006 at 17:20:28 from (198.164.250.220):
My diesel has a bad cough. It acts like it is not getting fuel, almost quits then fires back up. This started while spreading manure. Just all of a sudden. Tractor finally quit before I could get out of the field. So we changed both fuel filters,bled the system, and got home. I have now dismantled the primery filter head and cleaned the passages with a pipecleaner, blown air through the line back to the tank, Have checked the fuel flow after both filters (strong at both),Checked for power at the solenoid on the injection pump-good lite, Removed air filter, found it clean, air intake was clear, Ran tractor with air filter out ( ran without coughing after this). Took it out for a road gear test drive, and she starts to quit again( after 1600-1700 rpm).
Tractor would sit and idle without any problem when I started my check list, but would start to cough and die out as you went past 1100 rpm. The dealership did a full service 300 hrs ago, and trctor has run fine since. They are at a loss as to what the problem is. Keep saying fuel delivery problem, or injection pump. Does this sound like a blocked injector? or a bad pump? At 2700 hrs, I sure don't want to rebuild the pump! There are three other tractors feeding off of the same fuel source, and they have not had any problems. Thanks in advance for any suggestions.
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