Fordson power major engine problem

Discussion in 'Classic Machinery' started by Alex6160, Aug 10, 2017 at 2:34 PM.

  1. Alex6160

    Alex6160 New Member

    Got oil coming out of the exhaust on my fordson power major.....any diagnosis please ?
     
  2. Kevtherev

    Kevtherev Member

    Location:
    Welshpool Powys
    Valve stem seals or
    Has she been on light work?
     
  3. Alex6160

    Alex6160 New Member

    It did some ballast rolling last year and has been spitting oil since that....people keep telling me to give it hard work for a few days but I'm worried about buggering the engine up more.....?
     
  4. Kevtherev

    Kevtherev Member

    Location:
    Welshpool Powys
    If everything is ok give it some hard work I think it's glazed up.
     
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  5. Alex6160

    Alex6160 New Member

    Before 2013 it had been sat in a shed for 20 years.....I got it out and got it running and had a link box on it for about 12 months and she was fine.....then went and did this rolling and she has been doing it ever since ? So you think if I give it a hard working for a while it will fix it ?
     
  6. Kevtherev

    Kevtherev Member

    Location:
    Welshpool Powys
    Check the valve stem seals bet they have gone
     
  7. Alex6160

    Alex6160 New Member

    Is it a big job to check/replace those ?
     
  8. Kevtherev

    Kevtherev Member

    Location:
    Welshpool Powys
    Take the rocker cover off and look if they are worn.
    Very easy engine to work on
     
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  9. Alex6160

    Alex6160 New Member

    Thank you pal your a gent
     
    Kevtherev likes this.
  10. What he says! (y)

    But i would put a trailer on with a decent load and go for a run up the road with a hill or 2 make it work pulling it down underload we get this alot with the old tractors
    Just make sure water in plenty of oil if like tar change it make sure fan belt aint going to snap also check rad clear before your run out
     
    Alex6160 likes this.
  11. Stick her on a slurry pump for half a day.
    Keep half an eye on the oil pressure and water temp, give her hell.

    This is mine, I put 2 hours running on it after fitting new pistons and liners and then gave it half a day of hell on the harrows.

    Got her bedded in!


    371832-58c367e497a7f35787543d0ffd38c6fc.jpg
     
  12. Mursal

    Mursal Member

    Loose exhaust manifold, you didn't notice the oil when it was tight?
    Exhaust valve stems don't usually have seals fitted, if it was inlet valve stems leaking, you would expect the oil to get burnt.
    Might have a bit of wear on the exhaust valve stems/guides, though, but check the manifold bolts/gaskets first.
     
  13. db9go

    db9go Member

    Location:
    Buckinghamshire
    On that engine all valves had seals from new
     
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  14. Mursal

    Mursal Member

    My mistake ...........
     
  15. jd24

    jd24 Member

    If you have a load of oil spitting out its highly likely you have oil leaking past the piston rings.
    - Get a compression test done.
    -Check & change valves, lap them in.
    -Visually check the cylinder walls. If you have scoring or signs of oil your piston rings will likely need replacing. The liners may also need refinishing.

    These old tractors you literally only need a couple of spanners to take the entire tractor apart.
     
  16. mikep

    mikep Member

    Someone needs to start selling tractor coloured oil for old ones so you don't notice all the leaks:ROFLMAO:
     
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  17. jd24

    jd24 Member

    I think if you engine oil goes black really quick its a sign combustion is leaking past the
    I had an oil leak on our UTB/Universal 550 which turned out to be the head gasket.... One thing led to another and a day later....
    IMAG0736.jpg
    IMAG0816.jpg
     
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  18. jd24

    jd24 Member

    Head gasket change turned into;
    -New valves,
    -New pistons
    -New injectors
    -Engine relined and rebored
    -New crank bearings
    -new clutch
    -New track rods

    Beware the the curse of taking the cylinder head off but it is worth it in the long run.
     
  19. db9go

    db9go Member

    Location:
    Buckinghamshire
    The first sigh of piston ring fault will be oil coming out of the front breather. Is it rely black oil it could be injectors hard work could help. Check the breather pipe from the rocker cover to the air cleaner if it is a mk2 engine or it could be a mk1 engine and it goes to the inlet manifold is not blocked as that can course back pressure dont just check the pipe but also both ends as well. also make shore the little pipe on the air cleaner is not loose as that also can a problem
     

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