Pump injectors stuck after biodiesel /vegetal oil usage, cold weather
Results 1 to 6 of 6
Like Tree5Likes
  • 1 Post By flyweight
  • 1 Post By ghost
  • 1 Post By flyweight
  • 2 Post By rydplrs

Thread: Pump injectors stuck after biodiesel /vegetal oil usage, cold weather

  1. Top | #1

    Join Date
    Feb 2018
    Last Online
    02-14-2018 @ 01:09 PM
    Location
    Portugal
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Pump injectors stuck after biodiesel /vegetal oil usage, cold weather

    Hello, i have a John Deere Millennium 50c , the engine is from VM Motori model 703

    http://ricambi.goldoni.com/files/cat...vm/BD703E2.pdf
    http://www.telva.fi/pdf/vm1/U_D700-7..._5_07-2011.pdf

    Here are are some manuals of the engine.

    The problem is the following, after 1 month without use during negative temperature winter the engine didn't turn, after checking if it was the battery and seeing cables overheating with using 2 batteries together i tried to turn the engine.

    The engine is very stuck ( high gear, 1wheel on air trying to turn) .
    The injections pumps only the middle one sends some fuel and is very stuck.

    Click image for larger version. 

Name:	v76CMoM.png 
Views:	10 
Size:	134.7 KB 
ID:	546121

    The high pressure injection pumps (number 3 picture) seems to be the cause of the problem , what chemistry can i use in order to clear the pumps ?
    I can't really remove the pump because lack of a special tool to lock the spring as far as i know ( it shows on the repair manual)

    Since yesterday they are with some decarbonizing liquid inside, because of rubber only rubber plastic safe products can be used correct?
    The engine was running on diesel + vegetal oil .

    Thank you for any help.

  2. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

  3. Top | #2
    flyweight's Avatar
    Join Date
    Jun 2014
    Last Online
    Yesterday @ 08:08 PM
    Location
    Louisiana, (southeast)
    Posts
    9,602
    Thanks
    883
    Thanked 1,783 Times in 1,232 Posts
    The use of a special tool is needed for Bosch pumps only. Does your engine have the Bosch pumps?
    PJR832 likes this.
    Michael

    2019 JD Z540R, 54" cutting deck w/MulchControl™
    1984 JD 750 Tractor
    1971 JD 15 Chainsaw, ← hasn't run since ~1975

    Also have a bunch of other useless stuff.










  4. Top | #3

    Join Date
    Feb 2018
    Last Online
    02-14-2018 @ 01:09 PM
    Location
    Portugal
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    I think i have the bosch ones, is the high pressure ones.

    Click image for larger version. 

Name:	x0jQb61.png 
Views:	10 
Size:	24.9 KB 
ID:	546241
    Click image for larger version. 

Name:	7p6UwY1.png 
Views:	8 
Size:	51.7 KB 
ID:	546249

    I need that tool or is possible to lock other way?
    PJR832 likes this.

  5. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

  6. Top | #4
    AlKozak's Avatar
    Join Date
    Apr 2016
    Last Online
    06-03-2019 @ 08:21 PM
    Location
    Caroga Lake, NY
    Posts
    715
    Thanks
    40
    Thanked 84 Times in 77 Posts
    Not personally familiar with this particular equipment but the drawing looks like a cheap valve spring compressor from an auto parts store would do the job.

    Al

  7. Top | #5
    flyweight's Avatar
    Join Date
    Jun 2014
    Last Online
    Yesterday @ 08:08 PM
    Location
    Louisiana, (southeast)
    Posts
    9,602
    Thanks
    883
    Thanked 1,783 Times in 1,232 Posts
    From the looks of the tool, it should not be difficult to make.
    A stiff rod, the correct size to insert into the pump.
    Flatten the top of the rod and drill a hole, to insert a section of spring-pin material.
    PJR832 likes this.
    Michael

    2019 JD Z540R, 54" cutting deck w/MulchControl™
    1984 JD 750 Tractor
    1971 JD 15 Chainsaw, ← hasn't run since ~1975

    Also have a bunch of other useless stuff.










  8. Top | #6

    Join Date
    Jun 2013
    Last Online
    Yesterday @ 10:23 PM
    Location
    Southern Maine
    Posts
    7,866
    Thanks
    626
    Thanked 745 Times in 632 Posts
    You can run seafoam in a Diesel to clean it up once you get flow. On my truck the directions were to fill a new fuel filter, start it to get it in the injectors, let sit for an hour, then restart and run it hard for 30minutes.
    flyweight and PJR832 like this.

  9. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •