chinese diesel generator help

   / chinese diesel generator help #1  

mattmcd22

New member
Joined
Jan 11, 2014
Messages
10
Location
copley oh
Tractor
diesel gen
Hello guys and gals

Well I have another project in the works last year I put a small Z 170 f on a 1959 craftsman sun tractor.. I got it running and it ran great for the entire summer at the end of summer one day while the kids were riding it it just died I did some research and found that the injector pump was no longer any good.. I tried to do some research and actually found which I thought was the right pump on ebay I purchased it and when I got it its not even close to being the right pump. The pump on my engine has a much longer internal shaft the part that I received goes on the smaller engines my engine is a different style but has the same numbers as the newer the z170f engine.. The jug on my engine runs horizontal where the pump I received from what I can find goes on the engines where the jug runs vertical I am almost out of resources trying to find a pump if anyone has any info I would greatly appreciate it thanks for your help guys

Matt
 
   / chinese diesel generator help #4  
jug ( aka ) cylinder

:laughing::laughing::laughing::thumbsup: I haven't heard that engine slang for over forty years.
But I'm still curious about a few of things: 1) The OP mentions a generator. Is he aware that diesels will very often have a different governor for generator service? 2) How was it determined that the fuel injection pump was defective? 3) Was the injector pop tested?
 
   / chinese diesel generator help #5  
Last time I heard someone mention "jugs", he wasn't looking at an engine.
 
   / chinese diesel generator help
  • Thread Starter
#6  
Well funny story I'm now second guessing myself I pulled the pump apart and it all looks good here's what happened kids were riding the tractor..( I put this engine on an old craftsman sun ) and after an hour or more for no reason it just died.. we dragged it into the garage and tried to restart it.. it tried to start lots of white smoke and when it did fire it tried to run away but died before it got to crazy... I'm in time from what I can tell all my marks r good.. I'm .015 on my valve lash so I'm kind of lost I have timing marks on the flywheel but I have no idea how to change them.. thanks for all your help..
Matt
 
   / chinese diesel generator help #7  
   / chinese diesel generator help #8  
Well funny story I'm now second guessing myself I pulled the pump apart and it all looks good here's what happened kids were riding the tractor..( I put this engine on an old craftsman sun ) and after an hour or more for no reason it just died.. we dragged it into the garage and tried to restart it.. it tried to start lots of white smoke and when it did fire it tried to run away but died before it got to crazy... I'm in time from what I can tell all my marks r good.. I'm .015 on my valve lash so I'm kind of lost I have timing marks on the flywheel but I have no idea how to change them.. thanks for all your help..
Matt
Ya, this is a one-lunger. :laughing:

White smoke is unburned fuel/cold combustion chamber. Are you sure it tried to run away? Most small 60 Hz generators will want to run at 3,600 r/m. If it shut itself down then it probably has an overspeed trip, which must be reset before it can be restarted. It sounds to me like you have governor/throttle control issues. Do you know what type of governor is on the engine? Air? Oil pressure?
The fact that you pulled the fuel injection pump apart means it is now out of calibration unless you scribe marked all of the components and put them back together EXACTLY like you took them apart.
 
   / chinese diesel generator help
  • Thread Starter
#9  
I did find marks on a few of the pump pieces and did install them the exact same way I pulled them apart or so I think I did :).. As far as the governor that I have it works the exact same way a gas engine does basically the faster it spins the center pushes out and closes down my fuel pump turn slows down the engine.. I will take a few pictures of it tonight and post them.. Everything internal looks good that's why I'm confused as to what happened.. I'm not sure if it really tried to run away but it really started to rev up and before I could even do anything like a block off the intake it died started blowing a lot of white smoke and just died.. Up until that point it ran flawlessly no smoke no misfire it was perfect and then it was just like someone shut off the fuel.. I really appreciate all your help..
 
   / chinese diesel generator help
  • Thread Starter
#10  
Also this unit has an adjustable throttle you can turn throttle up or turn the throttle down and tighten up the set screw
 

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