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  1. #1
    Gold Member Avondale's Avatar
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    Sep 2008
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    317
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    Apple Hill, Ont
    Tractor
    Kioti DK 35; IH 574, Ranger 700 XP, Arctic Cat 500 TRV, Arctic Cat 400 FIS, Kawasaki 250 Bayou, Yamaha 200 BW.

    Default Kioti DK 35 Crankcase vent question

    My DK35, every now and then, blows the orange rubber cap off the oil filler tube (located just below the alternator) resulting in quite a mess. The rubber plug is "ribbed" but the tube is not. Is this meant as some form of over-pressure relief? I see another rubber tube running from the valve cover to the intake manifold, (which has a recessed device the hose spigot fits on to). I would think this should be the PCV arrangement but it is not shown or discussed in either the owners manual or the Kioti Service Manual. For the record, my engine also has an oil fill cap on the valve cover, too. Anyone with experience on this problem?
    "Life is tough. It's tougher when you are stupid". John Wayne

  2. #2
    Super Star Member k0ua's Avatar
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    Jun 2009
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    14,035
    Location
    Branson, Mo.
    Tractor
    Kioti DK35se Hydrostat

    Default Re: Kioti DK 35 Crankcase vent question

    Mine is the SE model, but no I haven't heard of that
    James KUA

    Kioti DK35se hydrostat with 2 QA buckets, 48 inch. King Kutter Rotary Cutter. 750 lbs ballast box. Loaded tires, Construction Attachments SSQA Lightweight Pallet forks. EA 50 inch single lid "wicked" Grapple. Satisfied Everlast PA160 welder owner How to add a link to a post . Best way to search TBN


  3. #3
    Elite Member Coyote machine's Avatar
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    May 2009
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    4,188
    Location
    Southern VT
    Tractor
    '10 Kioti DK 40se/hst KL-401 FEL, loaded tires, KB-2485 bhoe, Tuffline TB160 boxblade, Woods QA forks, MIE Hydraulic bhoe thumb & ripper tooth, Igland 4001 winch, & GR-20 Log Grapple. Woods BBX72" Mower. Diamondplate aluminum canopy.

    Default Re: Kioti DK 35 Crankcase vent question

    Do you fill your engine at the orange cap or at the valve cover? You should ONLY fill the oil at the orange cap NOT the valve cover.
    Have you checked to see if your crankcase is overfilled? There should not be enough pressure at the orange cap, which is press fit to the hole.
    Have you checked or changed your AIR filter recently for possible blockage?
    How many hours on the DK? Does this problem occur only in cold weather? What exact oil and quantity do you have in the machine?
    Do you change the filter with every oil change and at what hour interval?
    2010 DK-40se/hst, Kioti KL-401 FEL, (with reversible Kioti cutting edge), 72" Ratchet Rake. Fit Rite Top-N-Tilt hydraulics & diverter valve. HLA Series 2000 7' snowplow, Aquiline MPC rear chains.

    Scag Wildcat: Kawasaki 26HP, with bagger system. Dr. brush mower, & 42" lawn deck, Dr. self propelled, 6.5HP Trimmer mower. Pro-Mow 3 gang mower, no HP.

    Bunch of STIHL chainsaws: 011x 2, MS192T, MS200T, MS180C, MS230, MS270 (Wood Boss), 038 Farmboss, '86 anniversary edition.

  4. #4
    Gold Member Avondale's Avatar
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    Sep 2008
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    317
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    Apple Hill, Ont
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    Kioti DK 35; IH 574, Ranger 700 XP, Arctic Cat 500 TRV, Arctic Cat 400 FIS, Kawasaki 250 Bayou, Yamaha 200 BW.

    Default Re: Kioti DK 35 Crankcase vent question

    I have added oil via the valve cover port (labelled ) as well as the tube but the tube port is a bit awkward with my funnel because of the alternator. I do have a ribbed funnel spout but still awkward). The oil level is slightly less than the full notch, about 1/4" or so from full. I have not checked my air filter since the first snow fall, say late Nov 2012. I have 1096 hours on the machine and it has been serviced as per the book. It only happens when it is cold outside but long after the tractor has reached normal operating temp range. I change the oil and filter together and only use OEM filter with specified grade of oil at specified intervals. My manual is out in the garage so can not quote right now, will look up and get back to you about grade and hours at last change. Thanks for your help. PS: will check air filter when next out there too.
    Last edited by Avondale; 02-24-2013 at 07:15 PM. Reason: add air filter comment.
    "Life is tough. It's tougher when you are stupid". John Wayne

  5. #5
    Elite Member Coyote machine's Avatar
    Join Date
    May 2009
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    4,188
    Location
    Southern VT
    Tractor
    '10 Kioti DK 40se/hst KL-401 FEL, loaded tires, KB-2485 bhoe, Tuffline TB160 boxblade, Woods QA forks, MIE Hydraulic bhoe thumb & ripper tooth, Igland 4001 winch, & GR-20 Log Grapple. Woods BBX72" Mower. Diamondplate aluminum canopy.

    Default Re: Kioti DK 35 Crankcase vent question

    Want to reiterate: DO NOT add or fill oil through the valve cover. It can cause cavitation and other problems. Just because it's labeled oil fill does NOT mean that is where the oil for this engine is added/filled. That is partly why the orange cap is used to mark the location for oil to be added/filled. (I believe it is also noted as such in either the owner's manual or the service manual).
    Instead remove the lower panel on the right side when the hood is open and add/fill oil at the orange cap ONLY.
    If it turns out the air filter is dirty, DO NOT try to clean it. Replace it, vacuum out the area where it goes in the canister, and note the hours on the canister with duct tape.
    2010 DK-40se/hst, Kioti KL-401 FEL, (with reversible Kioti cutting edge), 72" Ratchet Rake. Fit Rite Top-N-Tilt hydraulics & diverter valve. HLA Series 2000 7' snowplow, Aquiline MPC rear chains.

    Scag Wildcat: Kawasaki 26HP, with bagger system. Dr. brush mower, & 42" lawn deck, Dr. self propelled, 6.5HP Trimmer mower. Pro-Mow 3 gang mower, no HP.

    Bunch of STIHL chainsaws: 011x 2, MS192T, MS200T, MS180C, MS230, MS270 (Wood Boss), 038 Farmboss, '86 anniversary edition.

  6. #6
    Gold Member Avondale's Avatar
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    Sep 2008
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    317
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    Apple Hill, Ont
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    Kioti DK 35; IH 574, Ranger 700 XP, Arctic Cat 500 TRV, Arctic Cat 400 FIS, Kawasaki 250 Bayou, Yamaha 200 BW.

    Default Re: Kioti DK 35 Crankcase vent question

    Thanks, again. Good idea about marking date. Do you know anything about the short hose that runs from the valve cover to the intake manifold and especially about the device I am guessing might be a pcv type relief for venting off excess pressure? It is not shown in either manual but has 4 "phillips/star" screws holding it into a recessed part of the cover.
    "Life is tough. It's tougher when you are stupid". John Wayne

  7. #7
    Platinum Member ritcheyvs's Avatar
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    Nov 2011
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    745
    Location
    Kittrell, NC
    Tractor
    Kioti DK45S

    Default Re: Kioti DK 35 Crankcase vent question

    Recommend you research this on one of the online parts sites, like: OEM Parts
    Scott
    Kioti DK45S, KL451 loader, Howse 601S cutter, Phoenix M72S mower, Deere BB5072 Box Scraper, Fit Rite Hydro Top Link

  8. #8
    Elite Member Coyote machine's Avatar
    Join Date
    May 2009
    Posts
    4,188
    Location
    Southern VT
    Tractor
    '10 Kioti DK 40se/hst KL-401 FEL, loaded tires, KB-2485 bhoe, Tuffline TB160 boxblade, Woods QA forks, MIE Hydraulic bhoe thumb & ripper tooth, Igland 4001 winch, & GR-20 Log Grapple. Woods BBX72" Mower. Diamondplate aluminum canopy.

    Default Re: Kioti DK 35 Crankcase vent question

    Quote Originally Posted by Avondale View Post
    Thanks, again. Good idea about marking date. Do you know anything about the short hose that runs from the valve cover to the intake manifold and especially about the device I am guessing might be a pcv type relief for venting off excess pressure? It is not shown in either manual but has 4 "phillips/star" screws holding it into a recessed part of the cover.
    As suggested in the post above, look up the part, it's corresponding number and show us a pic.
    Have you done what was already suggested, checking air filter condition, etc. Oil you have put in through the valve cover could be your entire issue. Let's verify that first.
    2010 DK-40se/hst, Kioti KL-401 FEL, (with reversible Kioti cutting edge), 72" Ratchet Rake. Fit Rite Top-N-Tilt hydraulics & diverter valve. HLA Series 2000 7' snowplow, Aquiline MPC rear chains.

    Scag Wildcat: Kawasaki 26HP, with bagger system. Dr. brush mower, & 42" lawn deck, Dr. self propelled, 6.5HP Trimmer mower. Pro-Mow 3 gang mower, no HP.

    Bunch of STIHL chainsaws: 011x 2, MS192T, MS200T, MS180C, MS230, MS270 (Wood Boss), 038 Farmboss, '86 anniversary edition.

  9. #9
    Gold Member Avondale's Avatar
    Join Date
    Sep 2008
    Posts
    317
    Location
    Apple Hill, Ont
    Tractor
    Kioti DK 35; IH 574, Ranger 700 XP, Arctic Cat 500 TRV, Arctic Cat 400 FIS, Kawasaki 250 Bayou, Yamaha 200 BW.

    Default Re: Kioti DK 35 Crankcase vent question

    Have not had a chance to follow up due to my main work requirements (12 hr days) and also it is maple season prep time so very little time for much else. I will look into, when able. I have not had to add any oil since the last change less than 100 hrs ago and just ran the machine for snow blowing contract work since (set rpm at about 2000-2200rpm) for majority of work. I mainly filled via the top oil cap (since new) and have also used the side tube before but will now only use the side tube. I have never been advised by the dealer to not use the top cap (marked oil).
    "Life is tough. It's tougher when you are stupid". John Wayne

  10. #10
    Platinum Member
    Join Date
    Jun 2007
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    677
    Location
    So. Maine
    Tractor
    Kioti 3054xs TLB

    Default Re: Kioti DK 35 Crankcase vent question

    There is no issue with adding oil through the valve cover access, so long as you're not tipping a gallon jug into the cover; the issue then is the drain back holes in the head can not keep pace with the rapid oil flow from such as a gallon oil jug and will allow engine oil to "back up" into that vapor recovery tube mentioned. That may cause engine run-away as the excess oil admitted to the recovery system enters the intake manifold and, when the engine is started, the combustion chambers.
    2004 3054xs
    1231 FEL
    Markham tooth-bar
    2376 BH, 9 and 18 inch buckets
    DR PTO chipper
    Blizzard B74 sno-blower
    250 hrs

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