Hard starting 2400H - lift pump failing?

   / Hard starting 2400H - lift pump failing? #51  
I connected two of the injectors to injector pump lines and had them spraying into a container. Neither injector had what I would call a good mist spray pattern so took all three injectors to a local Diesel injector pump repair house. They took all three back on there injector tester and agreed that at normal flow rates the pattern was bad so they hit them with high flow to see if could flush them. All three then had good mist pattern so brough them home and installed them. First start as expected was rough from air. Let run for awhile last night and tried again this morning. Started much better so will see how it does for the next few days.
Excellent news! Look forward to seeing if that solved the issue!
 
   / Hard starting 2400H - lift pump failing?
  • Thread Starter
#52  
Well it has been a couple months and rough start, poor idle, excessive smoke came back far worse that previous so broke down and ordered a set of new injectors that I installed Sunday. Was pleasantly surprised when there was a note with the new injectors stating the fluid used to test them can cause the injectors to stick so run them for a few minutes. On first start it idled fine but had a fuel leak so shut it down to repair the return line leak. On restart it smoked like a chimney and ran a little rough so backed it out of the shop and reved up to around 1500 RPM's till temp gauge started to move and then went to full throttle and back to idle a couple of times and they cleaned right up and ran smooth. Hooked up the 5 foot rotary cutter - brush hog and cut some road ditch weeds - grass that was 4 - 5 ft tall and purposefully drove fast enough to keep it grunting. Didn't smoke, had full power so very happy. Restarted Monday night with no glow plugs and fired right up in 85 degree ambient conditions.

Old injectors looked nasty with carbon build on nose on injectors and black soot on tip. Concerned on why so much carbon after 2 months since was rarely left at idle and most of time 1500 - 1800 RPM moving storm damage trees with loader or full throttle on chipper.

Will try and remember to post an update in a month or two.
 
   / Hard starting 2400H - lift pump failing? #53  
Didn't Branson do a recall on the 2400 a couple years before the merger? Wasn't it about changing out the injectors on that engine? If I recall it was emissions related, or they installed the wrong injectors, or something. Heck I may have the wrong model in mind...
 
   / Hard starting 2400H - lift pump failing?
  • Thread Starter
#54  
Yes their was a recall on the 2400 a few years ago. The explanation I received from my dealer was that the 2400 was producing more power than listed 24 HP with original injectors so put it into a different emissions class and at that time was mentioned about injectors failing or being carboned up.

I am trying to find a parts diagram for this injector that shows how the poppet tip should be shaped so can compare with my old injector to see if the wore some. I took one apart and with naked eye can see no evidence of water damage but tip feels like has lip on it. Looking for a good magnifying lens to study is closer since would like to try and determine what caused this failure.
 
   / Hard starting 2400H - lift pump failing? #55  
Hey oldnslo. Nice to see you got the starting smoking issue sorted out. My 2016 2400h has smoked a little on start up since I bought it this spring. It now smokes a lot and does sound like it's missing. Do you have the part number for the injectors you got from the dealer? Was it HT17020100A3?
 
   / Hard starting 2400H - lift pump failing?
  • Thread Starter
#56  
Jeff
I will send you a PM
 

Tractor & Equipment Auctions

GM Coach Bus (A50860)
GM Coach Bus (A50860)
2019 Allmand Light tower (A49461)
2019 Allmand Light...
120in Fork Extensions (A49346)
120in Fork...
Midland WA 8ft Road Widener Loader Attachment (A49346)
Midland WA 8ft...
Komstsu Midi Excavator (A49346)
Komstsu Midi...
2022 Club Car Tempo Golf Cart (A48082)
2022 Club Car...
 
Top