Page 51 of 56 FirstFirst ... 4148495051525354 ... LastLast
Results 501 to 510 of 558
  1. #501
    Gold Member
    Join Date
    May 2012
    Posts
    256
    Location
    Grand Rapids
    Tractor
    2013 Kubota BX2370

    Default Re: Ford 8N having trouble starting -- many troubleshooting steps take -- suggestions

    Thanks for the confirmation. I was able to test the points off of the tractor and find out that they indeed were not sparking. Tightening them up a bit and using a .015 shim to make sure they are gapped correctly was the trick -- they sparked just fine and I popped the distributor back on the tractor. She started right up but still had the stumble/miss. Bugger. So I recorded taking off each spark plug wire that was previously suggested here. If you watch the video you will see that when pulling the wire from all 4 cylinders it stumbled worse and in a different way.

    Any other troubleshooting you can think of? Thanks for all of your patience so far.


  2. #502
    Member
    Join Date
    Dec 2012
    Posts
    46
    Location
    Orillia Ontario
    Tractor
    50&51 8N Ford

    Default Re: Ford 8N having trouble starting -- many troubleshooting steps take -- suggestions

    The first thing is to manipulate the engine wiring harness ,with engine running to see if there is a bad /loose connection giving you an engine miss from vibration.If that seems good , redo the pulling plug wires & pay very close attention to how much each cylinder changes the engine RPM ,to locate which cylinder's are miss firing (usually there is only one ) might only show up as slight difference, this is easier if you had a tachometer& could watch RPM

  3. #503
    Super Star Member murphy1244's Avatar
    Join Date
    Nov 2011
    Posts
    18,128
    Location
    Ohio
    Tractor
    Kioti DK-40

    Default Re: Ford 8N having trouble starting -- many troubleshooting steps take -- suggestions

    502 reply's and it still don't run. Have you checked for air leak yet?
    Murph ------------

  4. #504
    Silver Member
    Join Date
    Aug 2009
    Posts
    208
    Location
    Port Orchard, WA
    Tractor
    Kubota L4310 GST;Case 580 CK (1968)

    Default

    PorkChops:

    Do you have a vacuum gauge? I do not remember if the 8n has a port on the intake manifold to pull vac, but if it does, it would be worth seeing what your vac is reading at idle and if the needle is steady or bouncing.
    Cycle_Gator,
    Port Orchard, WA
    Kubota L4310 GST

  5. #505
    Silver Member
    Join Date
    Aug 2009
    Posts
    208
    Location
    Port Orchard, WA
    Tractor
    Kubota L4310 GST;Case 580 CK (1968)

    Default

    PorkChops:

    Do you have a vacuum gauge? I do not recall if the 8n has a vac. port on the intake manifold, but if it does, it would be worth getting a reading at idle. Also looking to see if the needle is bouncing at all. That will tell you if the timing is off, or if you have a vac. leak anywhere.

    Man you did have some rain.
    Cycle_Gator,
    Port Orchard, WA
    Kubota L4310 GST

  6. #506
    Gold Member
    Join Date
    May 2012
    Posts
    256
    Location
    Grand Rapids
    Tractor
    2013 Kubota BX2370

    Default Re: Ford 8N having trouble starting -- many troubleshooting steps take -- suggestions

    I don't have a vacuum gauge but I think you guys are on the right track -- I know it's been mentioned before but I think I might have a manifold crack. A neighbor came over who is familiar with tractors, not necessarily the 8N, but is mechanical in nature. I showed him how the tractor will still run when pulling the main needle out or screwing it in all the way. He said "it's got to be getting air in some way" and put his hands behind the manifold. Said he could feel some warm puffs of air. I didn't have the time at the moment but tonight or tomorrow night I will fire her up and do as someone suggested a few pages ago -- spray some starting fluid around the manifold and see if the firing changes, surges, etc. I should have done this a while ago, my apologies.

    Will let you all know how it goes. I am off to research how hard it is to replace a manifold!

  7. #507
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    49,162
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Ford 8N having trouble starting -- many troubleshooting steps take -- suggestions

    an exhaust side leakl doesn't specifically mena a vac leak.. however..

    IF you can put the fuel screw all the way in and she runs.. i still say carb has an issue..

  8. #508
    Gold Member 8N Ren's Avatar
    Join Date
    Apr 2013
    Posts
    305
    Location
    Manitoba, Canada
    Tractor
    8N Ford

    Default Re: Ford 8N having trouble starting -- many troubleshooting steps take -- suggestions

    It's not hard at all. What I did when I replaced my manifold gaskets back in January was spray down the 4 manifold nuts with pb blaster a day or so beforehand. Mine came out rather easily. 2 nuts holding the carb and a couple of linkage rods. The manifold itself is only 4 nuts, the studs are threaded into the block I believe some are into the water jacket. You'll have to obviously drop the exhaust as well. I took a cup brush on my drill and cleaned up the mani and the block mating surfaces. I don't think the whole job took me much more than an hour and I was in the middle of a six pack when I started. After everything was buttoned up she sounded like new, previously she sounded almost like a miss ans quite loud. FYI after a good pb soaking I took time and loosened and tightened the nuts back and forth so I wouldn't snap a stud off. Seemed to work for me.

    I know it's frustrating as all get out. Stick with it! If your mani gaskets are shot you should be able to hear it as well as see some soot on the block. Keep with it and you'll get it. I think it's a safe assumption that we all want to get this thing running well again. Good luck and keep us posted.
    P.S. keep listening to Soundguy's advice he knows his stuff

  9. #509
    Gold Member
    Join Date
    May 2012
    Posts
    256
    Location
    Grand Rapids
    Tractor
    2013 Kubota BX2370

    Default Re: Ford 8N having trouble starting -- many troubleshooting steps take -- suggestions

    8N Ren -- good to know. I hope to be that deep into a six pack if I have to work on this anymore.

    The next time I get a chance to look at it I will take pictures of the manifold, too. It is heavily pitted on the outside, who knows what it looks like next to the block.

    Soundguy -- I have the rebuild kit for my carb. Once I test the manifold with starter fluid I guess I will know which way to go next -- start looking at the manifold or carb. What's crazy is it ran the same way with someone's different carb.

    The tractor did get to help out this weekend, it was just running with the stumble/miss while doing it.

    Before:


    After (still not done):

  10. #510
    Super Member 94BULLITT's Avatar
    Join Date
    Feb 2011
    Posts
    7,946
    Location
    Frederick County, VA
    Tractor
    Kubota BX2360 & L4240 HSTC

    Default

    Quote Originally Posted by PorkChopsMmm View Post
    I don't have a vacuum gauge but I think you guys are on the right track -- I know it's been mentioned before but I think I might have a manifold crack. A neighbor came over who is familiar with tractors, not necessarily the 8N, but is mechanical in nature. I showed him how the tractor will still run when pulling the main needle out or screwing it in all the way. He said "it's got to be getting air in some way" and put his hands behind the manifold. Said he could feel some warm puffs of air. I didn't have the time at the moment but tonight or tomorrow night I will fire her up and do as someone suggested a few pages ago -- spray some starting fluid around the manifold and see if the firing changes, surges, etc. I should have done this a while ago, my apologies.

    Will let you all know how it goes. I am off to research how hard it is to replace a manifold!
    Don't use starting fluid, carb cleaner, or anything like that. They have a low flash point.

Page 51 of 56 FirstFirst ... 4148495051525354 ... LastLast

Similar Threads

  1. trouble starting
    By jwcinpk in forum Mahindra Owning/Operating
    Replies: 17
    Last Post: 02-26-2013, 03:29 AM
  2. Trouble starting my Ford 8?? (I can't figure out the exact model)
    By bennevis in forum Ford Vintage Tractors
    Replies: 29
    Last Post: 05-04-2012, 06:33 PM
  3. Need troubleshooting suggestions - L3400 died
    By ctgoldwing in forum Parts/Repairs
    Replies: 15
    Last Post: 07-28-2010, 05:17 PM
  4. Ford 5 speed transmission - refurbishment steps
    By john_bud in forum Ford Vintage Tractors
    Replies: 11
    Last Post: 10-10-2004, 01:30 AM
  5. Replies: 0
    Last Post: 10-06-2004, 11:00 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.