TN70 fuel issue

   / TN70 fuel issue #1  

crazyhorsemd

Member
Joined
Sep 13, 2016
Messages
45
Location
cincinnati, Ohio
Tractor
2000 New Holland TN70, 1974 White 1370
recently purchased a TN70, changing fluids/filters. read manual how bleed fuel lines....( have done this on previous tractors successfully) can't seem to get all the air out. Oddly, the #2 line bleeds easily, when using the lift pump fuel streams out. ( thus is also the lowest line from the injector) Now, I get no flow of fluid from #1 and #3 when I use the lift pump and if I crack the #2/#3 line at the injector and turn the engine over..I see lots of bubbles/air. The manual is pretty straight forward. Bled the air at the filter and at the injectors but still keep coming up with air. all lines are tight, filter tight, fuel full. really frustrated...WHAT AM I MISSING
thanks all
crazyhorsemd
 
   / TN70 fuel issue #2  
Does it run? If it has fuel hoses it might be cracks so it sucks air, if it run as normal I wouldn't be thinking more of it.
 
   / TN70 fuel issue
  • Thread Starter
#3  
cant get it started now. occasionally it appears to run on 1 cylinder shortly but before I can crack open the other lines to bleed ,it stops. no gross fuel leaks, hoses "appear" intact. seems like the lower #2 line from injector has fuel /no air but the upper #1/#3 lines , which are higher on the injector dont bleed like #2. is there a bleeder fitting on the injector? had one on previous tractor. also, I realized that I did not have the throttle wide open when bleeding. would this cause it to be harder to bleed all lines?
thanks
 

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