Cat D7D restoration

Discussion in 'Classic Machinery' started by diesel1, Oct 27, 2018.

  1. diesel1

    diesel1 Member

    Location:
    North Yorkshire
    I bought this Cat D7D out of euroauctions Leeds a week last thursday, i will be restoring it over the next few months. I will be posting regular updates and pictures on the progress of the restoration.
    The D7 is running, but bleeding a lot of oil out of the exhaust, i put this down to spending too much time ticking over and not enough work.
    This afternoon, drained the diesel tank, 2 gallons of water came out before there was any sign of any diesel, cant believe it was running with what came out of the tank.
    After a 30 minute run around with fresh diesel in the tank, changed the engine oil and the cluch housing oil.
    Tomorrow, weather permitting, she will be put into some hard work for the day, before the strip down. D7h.JPG D7c.JPG
     
  2. Guy_Incognito

    Guy_Incognito Member

    Location:
    Herefordshire
    We’ve a 17A here use it for moleing, keep an eye on the donkey oil. People leave the petrol on and it leaks into the oil thining it down and they wear the crank bearings easy way to see if yours is worn it will start on one cylinder then pick up on the second, hell of a motor in them the first blown engine CAT put in a tractor
     
  3. diesel1

    diesel1 Member

    Location:
    North Yorkshire
    The donkey engine oil looks clean, but will be getting changed in a day or so anyway. It starts up quiet good, even on the hand crank.
     
  4. Mursal

    Mursal Member

    If you dont mind me asking, how will you know by starting it on one cylinder?
    Hear the rattle?
     
  5. Guy_Incognito

    Guy_Incognito Member

    Location:
    Herefordshire
    Yes they make a good rattle, there’s a chap over Newark way Rob Wilson he rebuilt ours, he has a shed full of donkey engines and a lot of cat crawlers 70+ I would say, also @diesel1 have you got the final drive track frame gaurds?
     
    Mursal likes this.
  6. Richard Devon

    Richard Devon Member

    Location:
    Guess
    Don't want to be the bringer of bad news but my D4D used to chuff oil out the chimney......turned out to be broken rings
     
  7. Mursal

    Mursal Member

    Well hard work wont cure that !!
    Hopefully only glazed, from tipping about .............
     
  8. Guy_Incognito

    Guy_Incognito Member

    Location:
    Herefordshire
    John moore’s Or JAYTRAC for engine parts
     
  9. is the engine breather clear?
     
  10. and is it breathing heavy?
     
  11. what spec oil did you refill with?
     
  12. diesel1

    diesel1 Member

    Location:
    North Yorkshire
    Not breathing heavy, just glazed bores i think, if it needs build so be it! im using sae 40 oil, a little light for the donkey engine as it never gets that warm.
     
  13. diesel1

    diesel1 Member

    Location:
    North Yorkshire
    Thats good to know, was woundering where to get parts for donkey engine if needed
     
    Last edited: Oct 28, 2018
  14. Timo@hattonfarms

    Location:
    Warwickshire
    Don’t know how far you are going with the strip down track frames off?. I’m currently doing up a D4C was just going too be a quick blast over and spray.
    Now got both track frames off and the final drives in bits. I would thoroughly recommend having the sprockets pulled and whipping off the final drive covers, if I hadn’t I would be non the wiser too my chipped pinion shafts and worn sprocket hubs.
    It’s just not worth ignoring as I’m sure @Richard Devon would agree knowing how far him and TC have been In to his D4

    CAT’s do have a knack for bitting you (no pun intended)
     
  15. Lincs Lass

    Lincs Lass Member

    Location:
    north lincs
    Jim @united parts, Kirton in lindsey has a shed full of cat parts, a lot goes to export
     
  16. thanks for interesting reply.... I am going to follow this with great interest as I would like to find a Cat crawler not a big machine though but a small Cat 10
     
  17. nick...

    nick... Member

    Location:
    south norfolk
    Looking foreward to following this thread
    Nick...
     
  18. Richard Devon

    Richard Devon Member

    Location:
    Guess

    There was a Cat 10 on ebay back in Sept and the other day a Cat 22 came up on my FB for sale feed........might be worth asking on the FB Link Club page, someone may know of something
     
  19. Richard Devon

    Richard Devon Member

    Location:
    Guess

    Yes, agree entirely with your words. There were times when I could have phoned Gormans to take it away, every part seemed to be another can of worms.....but hey-ho......I call it my D4D training course
     
  20. diesel1

    diesel1 Member

    Location:
    North Yorkshire
    What a difference 2 hours of hard work does. Stopped leaking oil out of the exhaust and sounds a lot sweeter. cat d7d 003.JPG
     

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