I have an old D4 2T 7884 cat crawler with a pony motor.
It was the first time it had been started in about 8months, so my buddy bought some diesel additive stuff and dumped it in the tank just incase the diesel was a little old.
I pushed dirt on hill and mostly flat ground for about 4 hours, the old girl was doing good and even felt like it had more power then before. However I waas pushing a full blade load of dirt and the tracror quickly lost power and died. My friend said herd some noises like a rattling. I didnt hear anything I had my hearing turned off.
I got the pony motor started and tried to get the diesel engine started, would not put out any smoke from the stack. Looks like its not getting fuel.
What I have checked so far:
Fuel Filters - pulled fuel flitters
Result: They still look new, I replaced them last fall, but there was alot of crap in the buttom of the fuel fliter housing. I cleaned the crap out. It almost seems like the fuel additive was cleaning out the tank and supply lines to get that much junk back in the housing because I cleaned that out last fall.
Bleed fuel lines - I followed the owners manual on how to bleed fuel system.
Result - I was able to get it bleed but it was bleeding like it did in the fall. its like there was just not enough pressure to bleed all the lines. I could get one or two of them to spray diesel but then it would just stop. or if I got it to where there was no air and it sprayed good I closed it and did the next one, and then the next, and then the next. When I would go back and double check them it was like starting over from the begining. I also would only randomly get fuel to come out of the top fuel vent.
Transfer pump- I am not an expert but it seems to that the transfer pump is what being used to bleed the fuel lines and injectors.
result - I pulled it apart and the gears looked good and the plates didnt show wear si put it all back together. tried bleed again. still doing same thing.
Then I notice if you are looking at the transfer pump towards the front of the tractor there is a steel line coming down and 90s into the fuel transfer pump. this 90 had a crack cause I could feel it wiggle, I tried to take it off but it broke, looks like it may have be leaking or sucking air. I dont know what this line does.
Does anyone know what I should check or had this same problem and know what most common issues are. its never done this, this old girl is very well kept and always starts. We have had a problem with the water pump but rebuilt and replaced it 2 years ago. We had proble with pony motor but by changing the govern spring in has been starting up great. this is first time this diesel engine has started.
Thanks for you time
millwrightbrian
It was the first time it had been started in about 8months, so my buddy bought some diesel additive stuff and dumped it in the tank just incase the diesel was a little old.
I pushed dirt on hill and mostly flat ground for about 4 hours, the old girl was doing good and even felt like it had more power then before. However I waas pushing a full blade load of dirt and the tracror quickly lost power and died. My friend said herd some noises like a rattling. I didnt hear anything I had my hearing turned off.
I got the pony motor started and tried to get the diesel engine started, would not put out any smoke from the stack. Looks like its not getting fuel.
What I have checked so far:
Fuel Filters - pulled fuel flitters
Result: They still look new, I replaced them last fall, but there was alot of crap in the buttom of the fuel fliter housing. I cleaned the crap out. It almost seems like the fuel additive was cleaning out the tank and supply lines to get that much junk back in the housing because I cleaned that out last fall.
Bleed fuel lines - I followed the owners manual on how to bleed fuel system.
Result - I was able to get it bleed but it was bleeding like it did in the fall. its like there was just not enough pressure to bleed all the lines. I could get one or two of them to spray diesel but then it would just stop. or if I got it to where there was no air and it sprayed good I closed it and did the next one, and then the next, and then the next. When I would go back and double check them it was like starting over from the begining. I also would only randomly get fuel to come out of the top fuel vent.
Transfer pump- I am not an expert but it seems to that the transfer pump is what being used to bleed the fuel lines and injectors.
result - I pulled it apart and the gears looked good and the plates didnt show wear si put it all back together. tried bleed again. still doing same thing.
Then I notice if you are looking at the transfer pump towards the front of the tractor there is a steel line coming down and 90s into the fuel transfer pump. this 90 had a crack cause I could feel it wiggle, I tried to take it off but it broke, looks like it may have be leaking or sucking air. I dont know what this line does.
Does anyone know what I should check or had this same problem and know what most common issues are. its never done this, this old girl is very well kept and always starts. We have had a problem with the water pump but rebuilt and replaced it 2 years ago. We had proble with pony motor but by changing the govern spring in has been starting up great. this is first time this diesel engine has started.
Thanks for you time
millwrightbrian