John Deere JD400 Discussions

Here are the most recent JD400 topics from our community.
  1. Oldchevyguy

    1968 John Deere JD400 has throttle issue

    The throttle has been getting stuck at idle. Not sure exactly how the governor functions in relation to the linkage but for a while I couldn’t throttle up from the handle but if you moved the...
  2. jim jroftx

    john deere jd400

    hello im new here i have a john deere jd400 backhoe i need info. on the motor plate # m53tw serial# 173253T i need to know what motor and yr ... thanks guys i need a major motor rebuild kit. and...
  3. O

    JD400 HYDRAULIC OIL FILTER

    Jd400 Pump started to whine while using the backhoe. Figured Id try do full service before I burn up the pump if I havent already. In the oil filter housing was a valve that doesn't appear to me...
  4. O

    Jd400 power steering failure

    Jd400 recently put in new seal kit in the steering wheel body because it was leaking at the top and it was working good, no issues other than chasing leaks, first in the nylon return line...
  5. O

    Jd400 bypass/block off power steering.

    Can i cap off the hydraulic inlet line at the steering wheel base. I have a seal kit ordered but I'd like to use tractor as I just got it.
  6. B

    John Deere 400 Fuel Recommendation

    The JD 400 Owner's Manual (1975-1983) recommends 85+ octane fuel but NO high-test gasoline. Thinking out loud that 87 octane with ethanol might not be good for seals, would 91 octane (no...
  7. N

    JD400 (circa 1975) Fuel Pump Leak

    Greetings; This has been also posted on other tractor forums. I just purchased an old and well used JD400 loader/backhoe. Lots of things to fix but I'll tackle one at a time. Fuel pump leaks...
  8. J

    Did a 1969 JD400 backhoe/loader have a dead end block?

    I want to take the backhoe off of my 1969 JD400. According to the manual that I have there should be a dead end block to plug in the main hoses and the plugs from the block are then used to plug...
  9. Oldchevyguy

    Help and knowledge 68 JD400 injection pumps

    Hello I have two JD400 backhoes one I’ve had for almost 3 years and one I just bought hopefully to make 1 really good machine out of two. Neither Is running, both are having injection pump issues...
  10. K

    JD 400 LOADER AND BACHOE ,1970.

    Jd 400 w/ bachoe the right rear tire is rubbing the frame on the bachoe and fender,left rear wheel is about 1 " off the bachoe frame and fender ?
  11. S

    JD 400 loader/backhoe woes

    G'day, wondering if anyone has experience with this relic. I have used this old girl for over a decade, borrowed from neighbour. Backing up I noticed a bolt and large 1/2 inch thick washer had was...
  12. Menagerie-Manor

    Here is a nice buy in Oregon on a JD 400 if anyone is looking.

    FEL and attachments included. I would grab it but that would not leave enough ready cash for a Hotel when she kicks me out...
  13. S

    Need compatibility information for john deere 400

    Hi. I just got my first tractor. And i'm pretty new to this. I have a John deere 400 1980. I'm trying to find a new snow plow . Do anyone know where I can find informations on what fit on...
  14. A

    JD400 Hydraulic blowout

    I have a John Deere 400 Industrial that has been working fine until one day it decided to suddenly blow out much of the hydraulic fluid, apparently past the hydraulic filter o-ring/gasket at the...
  15. D

    JD400 coolant

    Just wondering what coolant most people run in these old machines. Keep in mind I am in Australia where antifreeze isn't important it's mainly corrosion prevention. Thanks.
  16. D

    JD400 Backhoe valves

    Hi all anyone have a rebuild write up on these. They are on a 1968 JD400 backhoe. Thanks.
  17. D

    JD400 steering assist

    Hi all I recently purchased this jd400 and was wondering if you had to add fluid or if it's meant to pump from the mains to this header tank. will try and download a manual today to also assist me...
  18. M

    Buying Advice Looking at JD 400 GT

    Hi, The really great JD935 I inquired here about didn't work out. The owner stopped communicating after I looked at it, made the deal to get it delivered. I think he realized what it was going to...
  19. R

    Backhoe JD400 in aus

    so i bought this poor old machine and i know absolutley nothing about it . i have no idea on its age or any of its controls its hard to start looking till i know what i i have there seems to be...
  20. 7

    JD400 Steering play

    I took the old girl down the road today and that was a scary ride! I have noticed the there is play in the wheel but man its a lot worse than i had expected. So when i got home i was looking at it...
  21. R

    John Deere 400

    My John Deere 400 tractor wants to spit, sputter and backfires when under a load. Took the carburetor off and clean it and it started doing it again. Would a weak battery do it? or and bad needle...
  22. B

    JD400 leaking diesel

    After having the starter rebuilt, replacing the ignition switch and then the 20amp breaker, I finally got my tractor running, only to discover diesel fuel hemorrhaging out from the engine. I...
  23. 7

    70 JD 400 Thumb?

    I have a 1970 JD 400 industrial loader with a backhoe. Let me just say this. I dont know a thing about hydraulics so bear with me because probably somethings that you guys say is probably over my...
  24. 7

    JD 400 Cab

    Hi all. I have a 1970 JD 400 loader backhoe. I would like to enclose it. Has anyone made a cab for one of these before?
  25. 7

    1970 JD 400 Industrial

    Hi. I am new here. I just got a new to me JD 400. All in all it seems to be a decent machine. I am having trouble with the fuel gauge. It always says full. I found that the wire going to the tank...
  26. R

    JD 400 1968 backhoe diesel Throttle / governor control

    Several problems with throttle. It was sticking. Wouldn't shut off. Screw at rack and pinion gear / lever broke off. Unable to find source for parts. Should the sleeve, valve, idle adjusting...
  27. J

    Newbie + JD400 = What tools do I need?

    This JD400 seems to be manufactured in Germany but since itエs from -68 I expect that not a single thread is metric. Living in Europe I have a multitude of metric tools but a very limited set of...
  28. J

    JD 400 carb problem

    My old JD 400 backhoe/loader stopped running and was not getting any fuel to the engine. I removed the electric fuel shut off solenoid and it was dead -- no movement of the valve to let fuel in...
  29. J

    JD 400 electric fuel shut off solenoid valve

    My old JD 400 back hoe/loader stopped running yesterday because of no fuel getting into the carb. The electric solenoid fuel shut off valve that sticks out of the bottom of the carb was dead and...
  30. V

    JD400 Backhoe hydraulic oil flow seems reversed?.

    My unit is running out of hydraulic oil in the implements, with violent shuddering and then no movement either end. I have got it working for a few minutes by filling the header tank situated over...
  31. M

    jd400 yellow tractor with backhoe- shuttle shift misery

    I have an old JD400 yellow version, has a front end loader and backhoe attachment. for years it has been slow to go into forward, well, it sat longer than usual, like 8 months, had no forward...
  32. V

    JD 400 Backhoe filling transmission by draining the implements.

    This unit is causing me much grief! I fill the header tank above the pump, and everything works for a short spell, but then it pumps this oil into the transmission, thus overfilling it. I have...
  33. B

    JD400 Leaking Hydraulic Loader Cylinder

    I feel confident I can take the cylinder off the tractor. I assume there is some type of seal or gasket that needs to be replaced. Since it is hydraulics, and not specific to the tractor, are...
  34. B

    JD400 Starter issues - Service manual

    I posted about my starter issues last winter. This summer it started fine. I read that could be a sign that the starter is going (cold weather problems, warm weather is fine). I found a shop...
  35. J

    JD 400 oil

    Hello, I recently bought a 1969 JD 400 with a Diesel engine. The engine oil is black as night. What oil should I use for an oil change? The book says JD torq-gard. Above 32 F to use SAE 30...
  36. W

    John Deere JD400 service manual

    I have a John Deere JD400 loader backhoe with hydraulic issues could any one help me out with a copy of a workshop manual to help to try:shocked:and start sorting out the problem.
  37. J

    Need new belts for the John Deere 400. What's the best quality to buy?

    Need new belts for the John Deere 400. What's the best quality to buy? Need new belts for the John Deere 400. Does anybody have any opinions on what belts might be higher quality than others? Or...
  38. M

    NEED HELP WITH FRONT HYDRAULICS ON JOHN DEERE 400

    HELLO AND THANKS IN ADVANCE FOR YOUR ASSISTANCE. I have a john deere 400 garden tractor with- - a rear hydraulic pto . -front hydraulics on the drivers side with a supply and return line- -front...
  39. V

    JD 400 Backhoe/Loader won't slow to an idle or stop the engine.

    My first ever thread! My JD 400 has a CAV distributor type injector pump which I dismantled because of a lack of power, as it had sat for some time in the past with water in it, but still ran...
  40. 9

    jd400 diesel alternator upgrade?

    i have a jd400 loader b/h diesel engine and want to upgrade from the stock Motorola alt to a higher amp design one wire if possible can anyone tell me what else will fit it that will fit in place...
  41. B

    JD400 - Starting issues

    I have a John Deere 1969 JD400. I've had it for about 4 years and I seem to spend as much time figuring out repairs and working on it, as I do using it. It's a beast through, and never fails to...
  42. K

    New Owner JD 400 TLB

    Hello all, new owner of a John Deere 400 TLB here! Just wanted to say Hi!
  43. N

    JOHN DEERE JD 400 YEAR MANUFATURED

    I AM TRYING TO FIND THE YEAR MY JD400 LOADER WAS MANUFACTURED, SERIAL NUMBER IS000569.
  44. 1

    HELP NEEDED LOL (my jd 400 run out of fuel)

    hi all, i have a jd400 backhoe and i was doing something and forgot to look at fuel and befor i new it i was out. now it will not start and its new to me so im just wanting to know if anyone knows...
  45. P

    JD 400 Industrial Backhoe parts

    Hi All I recently purchased a jd400 backhoe and I'm wanting parts and advise on fixing the tacho/speedometer. Its not working at all and would like to know if generally is it just a matter or...
  46. M

    2 John Deere 400 Mowers

    Anyone looking for John Deere 400 mowers? I have 2 for sale. 1 runs excelent has 3 point hitch, blade for the hitch and cultivating plows. Mows good runs good. Has a whining noise that doesnt...
  47. P

    Backhoe JD400 Reverser Valve tubing

    I have a JD400 67' and I removed the reverser valve, in doing so a long (appro 12") tube came loose and I cant see where it plugs into. My manual says it goes to the reverse clutch but I cannot...
  48. C

    Building FEL & BH for my JD400

    This is the beginning of journaling this build. I ordered plans from PF Engineering and am logging the changes I need to make. I have had a number of questions which I posed to Paul at PF...
  49. G

    1965ish JD400 tranmissio question

    I haven't been on here in a while, so here it goes. I am looking at a 1965ishh jd 400 industrial with a loader and backhoe. The guy says it runs fine, but won't go into gear. It sounds to me like...
  50. D

    john deere 400

    Hi I am new here I have chance to buy john deere 400 for $950.00 and it needs and a lot of work and does not run the coil is missing is that a fair price? Thank you dan5905
  51. cartod

    Help Troubleshoot 1978 JD 400

    Plowed today for 2 hours, when I went to start it again it turned over and then the electrical system died. No lights, no starter no nothing. Battery checks out fine. Where should I start????
  52. 9

    in need of a rear wheel for a jd400

    any ideas on who would have one mine has a 1300x24 tire on it this is for a jd400 i just acquired all help greatly appreciated thanks
  53. G

    Oil & Fuel how to check hydraulic fluid in john deere 400

    Hi, I have a older John Deere 400 loader/back hoe, my question is do you have the tractor running or shut off when checking the fluid level. Thanks.
  54. J

    1967 JD 400 backhoe Diesel operation Q (2020 diesel owners may be able to help ?)

    Hello, I've gone and worked a trade for a 1967 John Deere 400 backhoe. It's diesel and the story is that it hasn't been run in 5 or 6 years. It's been outside under a tarp, so it isn't in horrible...
  55. T

    Help with JD400 hydraulic problem..

    Hi.. I'm a mechanic, not a tractor mechanic so bear with me. I've been working on an old JD400 with a backhoe on it.. we've repaired leaks (fuel and hydraulics) and even put a new hydraulic pump...
  56. Snoxracer

    JD 400 will not move or raise 3 point

    I am working on a 400 for a friend that was not running, right after I got it running the 3 point would raise and lower (I never tried to move forward or reverse) and now it will not do anything...
  57. H

    I have a John Deere JD400 Diesel

    Hi All, I am Scott. I live in the high desert of southern California where it freezes at night this time of year. I am here to learn and get some help. I have spent many hours online looking for...
  58. H

    NEW GUY HI all~~~~John Deere JD400 Diesel tractor

    Hi All, I am Scott. I live in the high desert of southern California where it freezes at night this time of year. I am here to learn and get some help. I have a John Deere JD400 Diesel tractor. I...
  59. C

    John Deere 400

    Who knows anything about the Pump system on a 400. The tractor will not move. Is there any specs, drwgs, or information about these units.
  60. T

    my JD400

    I HAVE CHANGED OIL AND FILTER, FUEL PUMP, POINTS, COND, ROTOR AND CAP. ALSO HAD THE CARBURATOR REBUILT AND REPLACED STARTER WITH A NEW ONE.THE MACHINE STILL WILL NOT START. I DRAINED THE OIL LAST...
  61. T

    JD 400 Hydro

    Have JD 400 garden tractor. Have to constantly regulate speed w/ ground control lever. Is hydrostatic shot or can it be repaired/adjusted?
  62. S

    John Deere 400 late 70's early 80's lawn tractor brake shoes

    Have some NOS brake shoes that apparently fit this tractor. Does anyone have a 400? Can you confirm what shoe fits this tractor? Thanks Steveamy40342 at yahoo dot com
  63. M

    JD 400 TLB

    Hello, I am looking at a old JD 400 TLB and am wondering if anyone can tell me what this machine weighs ? I need to be sure I have the ability to move it. any help will be greatly appreciated...
  64. J

    JD 400 Backhoe pulsating weak hydraulics

    I have a JD 400 built in 1966 and it has run fine until lately. The JD dealer has cleaned the sludge screen filter and installed all new filters in the hydraulic lines. The dealer thought the...
  65. M

    John Deere 400 backhoe, no forward

    I have a John Deere 400 backhoe that will back up with the shuttle in reverse, but will not go forward in forward(I have the tractor setting on the stabs now, no forward movement). I have drained...
  66. bsrfarms97

    I'm considering a john deere 400

    I'm looking at a jd 400 model garden tractor. It's in good condition and everything works well. It's $2400 with the mower. Can anyone tell me if this is a good price and how reliable these are?
  67. J

    JD400 hoe/loader weird hydraulic set-up?

    G'day all, I'm hoping some knowledgeable john deere aficionado can help me out with JD400 hydraulic plumbing....... I recently bought a JD400 (haven't even got her home yet) and she has some...
  68. J

    newb JD400 hydraulic problems

    G'day all! Please bear with me i am new to this old tractor caper....... I have just bought a JD400 loader backhoe and she has some hydraulic system issues. the loader bucket will only raise very...
  69. B

    Beejus and his JD 400

    Hi Everyone, I have been tinkering with Lawn Equipment for about 2 yrs now. I currently own a JD 400 with Front Loader Snow Plow Snow Blower Belly Mower Rear PTO Toro Proline...
  70. B

    JD 400 front PTO pump for loader

    Hi, I'm new to this forum. I just acquired a JD 400 with the loader option. After changing the fluids and installing a new starter it runs like a champ. I noticed when I changed the starter out...
  71. G

    jd 400 power steering

    What to look for when the power steering has kist stopped working?
  72. S

    Backhoe JD 400 Brakes

    I just bought a John Deere 400 backhoe/Bucket, it had a little brakes when I loaded it on trailer, But had none when I got it off trailer. would like input on possible problem,or schematic of...
  73. R

    jd 400 lawn tractor seems to vapor lock

    I have a 400 that after using it for a period, will not restart if i shut it down for a short time. The gas tank cap seems to be ok and the pump is running normal but i have to wait till it cools...
  74. robinfields24

    1968 JD 400

    Aloha! Newbie to TBN. I am having a problem with hydraulic fluid not returning to my main hydraulic pump. I rebuilt the main pump, so it is working. I am not sure if the problem is my...
  75. B

    Backhoe JD400 Loader with 94 Backhoe - Grease fittings

    Stupid newbie questions here about greasing my loader/backhoe. I bought this used loader/backhoe a few weeks back. Have had numerous issues with hydraulic lines and hoses, but I'm working...
  76. J

    JD400

    Hi everybody, I bought a 1970 John Deere 400 loader backhoe back in Oct/2010. I've got around 2 3/4 acres I'm clearing, filling and digging. I'm looking forward to learning everything I can...
  77. B

    1969 John Deere JD400 tractor - need parts

    I just bought this fine machine, and within days it sprung a leak in an oil line. In the process of replacing leaking section of the metal oil line with a hose and clamps, I must have jiggled the...
  78. J

    Parts for JD 400

    Does anyone know where I can purchase used John Deere lawn tractor parts? I am in need of a steering gear box for my 1976 JD 400. I was told there are people out there who rebuild and sell such...
  79. J

    JD 400, 1976

    Does anyone know where I can get a gear box for my JD 400? 1976 is the year. I have extensive play in the wheel. Thank you, Jay
  80. J

    JD 400 Gear box

    I need a gear box for my John Deere 400. Any help would be appreciated. Extensive play in the steering. Jay
  81. J

    John Deere 400 Tractor

    I have a 1976 John Deere 400. I need a gear box. The steering in my 400 has extensive play. If you can help me out I would appreciate it. Jay
  82. meb9796

    Can a 47" snowblower that was connected to a JD 400 work on a 2305?

    I got a used 47" sb off craigslist and was told it would connect to a 400 and 425. The dealer says a sb that connects to a 425 will also connect to a 2305, but I'm having trouble finding an...
  83. K

    jd 400 hydraulic problem

    hi there i'm new to this forum my jd 400 industrial tractor is having problems i have had the loader control valve o/h, the priority valve o/h, the acumulator o/h and the pump o/h. i have changed...
  84. F

    Is a JD 400 a good parts machine for a JD 420???

    i've got a chance to pick up a John Deere 400 garden tractor that has a blown engine. I've got a JD 420 that I'm trying to keep running. I'm wondering how many of the parts are...
  85. S

    Buying Advice JD400 for $1500

    I'm a total newbie here, but in searching, I haven't found many specifics on the JD400. I've been lurking on Craigslist for some time waiting for a good John Deere garden tractor to pop up. A...
  86. V

    Attach a Hammer to a JD 400

    Hey fellas Does any on know if its possible to attach a Hammer to an old JD 400 w/ a backhoe attachment on it. I'msure this hammer would have to be porprtional to the size of the...
  87. BTackett

    What rpm does JD400 tractor turn 540 on the PTO?

    Reason asking, I have a CUT with a 540 PTO and found a JD tiller and want to know if my diesel will have enough rpm's to turn the specified gas rpm's required for 540 gearing. Does anyone know...
  88. 9

    HELP! JD 400 won't always start.

    My proud purchase of a JD 400, early 80's, is starting to be a regrettable purchase. My problem is this: I turn the ignition and hear the solenoid clicking. WHen I continue to turn the key it...
  89. 9

    JD 400 Impulse buy

    Call me crazy but I just purchased a JD 400 in good shape that runs really good. Here is what makes me crazy. I know NOTHING about these tractors. A farmer had is for sale on the side of his...
  90. D

    New JD 400 owner

    sorry wrong forum
  91. N

    JD 400 with Front loader Est. Value?

    Anyone know what my JD 400 w/ FL is worth? Runs good, needs TLC. Looks real sharp. Thanks, Jim
  92. N

    JD400 with Front Loader. 20hp Kohler

    I have a JD 400 with a FL. and I'm considering selling it. Anyone have any idea what I can get for it? It runs and looks good. Needs some TLC. I need the money to purchase a new BX24. <font...
  93. R

    JD 400 PTO problem???

    There I was, mowing merrily along this morning. I heard a thump (lots of pieces of limbs and drbris still in the grass from Hurricane Ivan) down by the 400 deck, and the mowing stopped...
  94. R

    need help identifying jd 400 60" decks

    need help identifying jd 400 60\" decks Need some help with identification of JD 400 60" deck model #s. I have a 400 with 60" deck. My deck has 4 wheels. Two casterable ones in front, and two...
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