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  1. #1
    Silver Member
    Join Date
    Apr 2006
    Posts
    180
    Location
    New Mexico
    Tractor
    CK30 HST

    Default Oil drip

    My ck30hst/bh is my first tractor. I now have 400 hours on it, I would consider it hard hours. Since most of that time time was clearing big boulders. Its starting to drip hydraulic fuild. The drip is coming from under the right side of the engine, there is what looks like a pump, its grey in color. Since this is my first diesel anything, are small leaks like this common on diesel engines.

  2. #2
    Gold Member
    Join Date
    Mar 2005
    Posts
    414
    Location
    NE Pennsylvania
    Tractor
    CK30HST

    Default Re: Oil drip

    Check around your hydraulic oil cooler. Older units have had problems. Newer units were equippped with flexible connections and the older ones can be upgraded at your expense to possibly avoid a cracked cooler. 284 hours on my old style CK30hst and no problems........yet.

  3. #3
    Silver Member
    Join Date
    Apr 2006
    Posts
    180
    Location
    New Mexico
    Tractor
    CK30 HST

    Default Re: Oil drip

    Now am scared. I still have a hydraulic oil drip. But when I check the dip stick it reads full. I take a reading before and after I use my tractor. Is there a sealed reservior or ?? that contains Hy oil.

  4. #4
    Silver Member
    Join Date
    Oct 2006
    Posts
    107
    Location
    Southern Indiana

    Default Re: Oil drip

    How bad is the drip. One drop of oil can make a good size spot on concrete. plus there is alot of oil in the hydraulic system on a tractor. Several quarts/gallons

  5. #5
    Silver Member
    Join Date
    Apr 2006
    Posts
    180
    Location
    New Mexico
    Tractor
    CK30 HST

    Default Re: Oil drip

    Quote Originally Posted by bkheur
    How bad is the drip. One drop of oil can make a good size spot on concrete. plus there is alot of oil in the hydraulic system on a tractor. Several quarts/gallons
    It leaves a spot about the size of a small plate

  6. #6
    Super Member Highbeam's Avatar
    Join Date
    Feb 2005
    Posts
    5,037
    Location
    South Puget Sound, WA
    Tractor
    Kioti CK30HST

    Default Re: Oil drip

    Your hydraulic pump is back there. Is the leaked oil hydro oil or engine oil? Smear the fresh drip from the leak on a white paper and see what color it is. Engine oil should be much blacker. If it isn't obvious then dribble dipstick oil on the paper from the respective sumps to determine the source.

    My hydro pump hasn't leaked in 600 hours. There are several hoses that route oil to the pump that are routed down low in harms way. Maybe one of the hoses was disturbed and it loosened from the connection with the hydro pump.

    Clean the pump off and run the engine to maybe find the source.
    Kioti CK30HST, FEL w/toothbar, 60" RC, 60" BB, PJ 10k trailer. Weekend warrior hauling 50 miles each way.

  7. #7
    Silver Member
    Join Date
    Feb 2006
    Posts
    117
    Location
    Washington
    Tractor
    Kioti CK30

    Default Re: Oil drip

    My money is on the hydraulic cooler. When I bought my CK30 it was raining so I couldn't tell what was going on leakwise on my tractor. The previous owner said that there was an oil leak at the oil filter. After I ran the tractor and it stopped RAINING (gotta love Western Washington Winter weather) I saw what the previous owner was talking about. It took a while but I traced the leak to the hydraulic cooler. The worst of the oil was actually on the front of the engine and it dribled down from there. That had me worried because I thought I might have a seal/gasket leak that would require me taking something off of the engine. When I found the drip at the bottom of the cooler I was actually relieved. The fan sucks most of the leaking oil through the radiator and onto the front of the engine. So when the engine is off and cool run your finger on the bottom of your hydraulic cooler specially if it has metal non-flexible lines going in and out of it. There is no good reason for the bottom of the cooler to be oily. Since I have changed mine it is bone dry. If that is where the leak is coming from give your dealer a call and ask him about a warranty replacement with the new flexible lines.
    Brad

  8. #8
    Silver Member
    Join Date
    Oct 2006
    Posts
    107
    Location
    Southern Indiana

    Default Re: Oil drip

    Quote Originally Posted by DIRTCUTTER
    It leaves a spot about the size of a small plate

    It is not a hugh leak but it is Irritating! Hope you find it and can get it fixed

  9. #9
    Silver Member
    Join Date
    Apr 2006
    Posts
    180
    Location
    New Mexico
    Tractor
    CK30 HST

    Default Re: Oil drip

    I still cant find where the leak is coming from, but its hydraulic oil for sure. Its starting to rain around here so this may be a good time to take it to the dealer. I have another question. When your tractor is down for a long period of time does the hydraulic fuild settle to the bottom. Because when I check the fuild level when the tractor has been sitting its low. Then when I run the tractor, shut it off then check the level its fine.

  10. #10
    Super Star Member IslandTractor's Avatar
    Join Date
    Sep 2005
    Posts
    15,368
    Location
    Prudence Island, RI
    Tractor
    2007 Kioti DK40se HST, Woods BH

    Default Re: Oil drip

    Quote Originally Posted by DIRTCUTTER
    I have another question. When your tractor is down for a long period of time does the hydraulic fuild settle to the bottom. Because when I check the fuild level when the tractor has been sitting its low. Then when I run the tractor, shut it off then check the level its fine.
    A number of people have reported this same phenomenon. I'm not sure exactly what the explanation is but it is likely related to cooling of the hot oil after the last time you used it with some sort of vacuum lock phenomenon and subsequent false levels of oil in the dipstick tube. Usually after starting the engine the measured hydraulic fluid level is correct.

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