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Yesterday's Tractor Forums
  1. O

    Engine oil

    Since I seem to have a fuel leak into my 1520 s oil pan when I get this fixed I will definitely need an oil change. What do YOU all recommend for oil? I know everything says use John Deere tough guard or plus 50- but is that really necessary on a tractor of this vintage? I don t have a problem...
  2. O

    Hydraulic fittings

    I was getting my John Deere 1520 ready for winter and my 2 loader disconnect fittings are leaking pretty bad. Since I will have to replace the whole fittings I figure I would ask y all what would be the best style to replace them with? I believe it has the pioneer style on it now but is there a...
  3. O

    Oil level rising

    John Deere 1520- starts easy and runs well. the oil level has risen quite a bit and I haven t had to add oil in quite some time. From looking around on the engine it seems as there can only be 2 culprits- coolant or fuel is making its way to the crankcase. It s not milky or strange looking and...
  4. O

    This years snow

    After seeing rusty6 s snow video I figured I d share a pic of our snow so far in eastern Oregon. Yesterday I woke up and the temp was -12F and this morning we are currently at 0F.
  5. O

    Plugging in thee ole diesel

    Here s a question that I m sure will have many answers. I have a JD 1520 diesel and it does not have glow plugs or any sort of starting aid. So when it gets cold it can take a bit of time to get her running. It was around 10 degrees F the other day and it took some cranking to get it running. I...
  6. O

    Seat cover

    I have seen all these posts about seats and they prompted a question. Less than a year ago I bought a new seat for my JD 1520. Nothing special, just a yellow rubbery/foam seat probably made in china. It s comfortable and doesn t absorb water. Anyhow, one day I go out to tend to my cattle and I...
  7. O

    1520 rockshaft disassembly

    Today I plan on removing the rockshaft assembly for repair assuming nothing else robs me of the time to do it. From my shop manual it looks fairly straightforward however I have one question. There is a long lever that goes into the transmission housing for load/depth control. Will this come out...
  8. O

    1520 still leaking hydraulic fluid

    So I posted a week or so ago about my 1520 leaking hydraulic fluid out of the auxillary rockshaft adapter area. In the end it looked like it was a bad o-ring. Nope, not so lucky. It was still leaking so I removed the adapter and just installed the plug so I could see a bit better in the cavity...
  9. O

    Hydraulic system cleaner

    Sooo, on my ole John Deere I was going to change the hydraulic fluid soon. Is there some sort of hydraulic system cleaner or flush that could or should be used as general maintenance when changing the fluid? I know there are all sorts of snake oils and super-d-duper fluids that a guy can buy...
  10. O

    1520 hydraulic leak

    Howdy, so a couple weeks ago I just got my 1520 running good again... Today I was using it to do some light road repairs and it developed a nice hydraulic fluid leak directly on the opposite side of the tractor from the 3 pt lift lever. When I lift/lower the 3 pt it gushes out pretty good. What...
  11. O

    1520 hydraulic leak

    Howdy, so a couple weeks ago I just got my 1520 running good again... Today I was using it to do some light road repairs and it developed a nice hydraulic fluid leak directly on the opposite side of the tractor from the 3 pt lift lever. When I lift/lower the 3 pt it gushes out pretty good. What...
  12. O

    1520 running good again

    I got my injection pump back the other day from dieseltech who rebuilt it, in the box it appeared to be a very professional job done. Anyhow, I installed it today and everything went just fine and dandy except for the cold temperatures and even colder wind. My tractor now runs better than it...
  13. O

    Rotating engine

    First off, I know I can figure this out but I know you pros probably have a quicker easier solution. I need to rotate my engine by hand in order to line up injection pump timing marks. Soooo, since there is a coupling on the crank shaft for the hydraulic pump what is the best way to rotate it...
  14. O

    1520 problems UPDATE

    So, I have been having problems with my 1520's fuel system as I have posted about a few times. Today while getting everything back together again I fired it up and it ran good for a few min then it died. I had plenty of tools nearby so I started it again and it ran for a short time and started...
  15. O

    1520 again running poor

    So, I guess I have some sort of gremlin living in my fuel system. A couple weeks ago it lost power and the engine slowed until it barely ran. I discovered that my fuel filter was clogged up with nasty sludge from my fuel tank. So I drained the tank, changed the filter, and added new fuel with...
  16. O

    Fuel tank outlet thread sealant

    So, on a fuel tank (diesel) the outlet threads that the tank shut off valve threads into what do y'all use to seal the threads? Regular teflon thread tape? Some sort of liquid sealer?
  17. O

    1520 running poorly

    Hello again, I was using my 1520 today and I noticed the exhaust tone changed to more of a loping tone and steadily started losing power. Then when I moved the throttle lever to make the engine run faster it wouldn't rev past about 1/4 throttle. The engine had very little power and was smoking...
  18. O

    Hydraulic pump seal

    Howdy! I have a quick question about my hydraulic pump on my 1520. It is leaking out of the front seal where the engine driven shaft goes into the pump. I will probably not be fixing this real soon however I was wondering what the difficulty in changing this seal is? I have changed many seals in...
  19. O

    Brush beater question

    So, I have always wondered why folks run a chain from the top link all the way out to the tail wheel area on brush beaters. I have looked at mine and there is a fairly substantial frame on it so I wouldn't think it would be needed for support. Maybe I am missing something? Here is a picture of...
  20. O

    Hydraulic fittings

    I dont know alot about various hydraulic fittings. I have these fittings and they leak a little, not too bad, but I'd like them to not leak. So, do folks replace the whole fitting? Can you rebuild them with new orings and what not? Are there many varieties of quick disconnect fittings? These say...
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