Page 3 of 4 FirstFirst 1234 LastLast
Results 21 to 30 of 33
  1. #21
    Veteran Member Deano's Avatar
    Join Date
    Oct 2008
    Posts
    1,234
    Location
    Southern Maryland
    Tractor
    Kubota BX24

    Default Re: Clunking noise at idlle M7040

    Quote Originally Posted by Gordon Gould View Post
    If they don't know what it is how can they say it isn't a problem. That would bother me a little. But they are looking into it - That is a good thing.
    I was thinking just that....
    Deano
    2006 BX24, 6' Modern Implements rake, Woods RB60 rear blade, Wallenstein thumb, Bro-Tek rear skid plate, home made front skid plate, W.R. Long flat tooth bar, 4' finishing mower (TPH), 4' box blade, post hole digger, New style seat!!!!!, Agri-Fab drop spreader.

  2. #22
    Elite Member rbargeron's Avatar
    Join Date
    May 2000
    Posts
    2,721
    Location
    MA
    Tractor
    L5450, L48, L3250, L345

    Default Re: Clunking noise at idlle M7040

    It's not that kubota doesn't know what's causing the noise, they know it's a flow interaction in the hydraulic plumbing. It's not a mechanical threat to anything, but more of a nuisance that some customers will want fixed and others won't care about. Therefore they don't dive deep to fix them all. Their policy is probably to fix the ones people object strongly about.

    Back a few years, my L4150 made a random noise like that and the cause was a pump suction pipe that didn't reach down into the oil deep enough - so it sucked an air bubble once in a while. The fix was to replace the pickup pipe with a longer one (maybe a $10 part) - but it required separating the tractor to install it. My dealer said Kubota had authorized it under warranty on a case-by-case basis - it was more about customer goodwill than fixing a mechanical defect. I had bought my tractor 2nd hand so I had to buy the pipe. Still have it on the shelf - fixing the noise wasn't worth the trouble.
    L345, L3250, L48, L5450, never enough attachments

  3. #23
    Veteran Member brain55's Avatar
    Join Date
    Jan 2008
    Posts
    1,774
    Location
    Brentwood, CA

    Default

    Quote Originally Posted by rbargeron View Post
    It's not that kubota doesn't know what's causing the noise, they know it's a flow interaction in the hydraulic plumbing. It's not a mechanical threat to anything, but more of a nuisance that some customers will want fixed and others won't care about. Therefore they don't dive deep to fix them all. Their policy is probably to fix the ones people object strongly about.

    Back a few years, my L4150 made a random noise like that and the cause was a pump suction pipe that didn't reach down into the oil deep enough - so it sucked an air bubble once in a while. The fix was to replace the pickup pipe with a longer one (maybe a $10 part) - but it required separating the tractor to install it. My dealer said Kubota had authorized it under warranty on a case-by-case basis - it was more about customer goodwill than fixing a mechanical defect. I had bought my tractor 2nd hand so I had to buy the pipe. Still have it on the shelf - fixing the noise wasn't worth the trouble.
    This is very true. There are certain repairs that don't warrant a recall. I can speak about the L4150 issue because I witnessed it first hand. One of our customers was the first on the list to get the extended pick-up. In his application he had severe cavitation because of the pick-up location. I upgraded a few of them but certainly not every single one we sold. For most it was never an issue.

    Brian

  4. #24
    Veteran Member kuboman's Avatar
    Join Date
    Dec 2009
    Posts
    2,195
    Location
    Canada
    Tractor
    B3200, L5740,

    Default Re: Clunking noise at idlle M7040

    I think I might of just added more fluid to bring the level up.
    L5740 LA854 loader
    L3130 LA723 loader sold
    B3200 LA504 loader
    B1550 sold
    B2620 sold
    B4200 sold
    F2680E
    ZD1211
    GF1800 sold
    Kubota RTV900
    JD 850D Gator sold
    JD F935 x 2 sold
    Case 590SM-2
    JD 310D TLB sold
    Ford 555D sold
    Gehl 602 excavator sold
    JD317 sold
    JD323D

  5. #25
    Super Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    6,441
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: Clunking noise at idlle M7040

    Quote Originally Posted by rbargeron View Post
    Back a few years, my L4150 made a random noise like that and the cause was a pump suction pipe that didn't reach down into the oil deep enough - so it sucked an air bubble once in a while. The fix was to replace the pickup pipe with a longer one (maybe a $10 part) -
    This same thing may be causing the noise on the M7040's. I looked in the hyd oil filler hole and one can see tiny air bubbles with engine is running.

  6. #26
    Elite Member rbargeron's Avatar
    Join Date
    May 2000
    Posts
    2,721
    Location
    MA
    Tractor
    L5450, L48, L3250, L345

    Default Re: Clunking noise at idlle M7040

    Quote Originally Posted by kuboman View Post
    I think I might of just added more fluid to bring the level up.
    Right on the money Kuboman - they actually included two other parts in the kit with the longer pipe - a gasket for the housing and a new shorter dipstick so the oil level would be kept higher.
    L345, L3250, L48, L5450, never enough attachments

  7. #27
    Veteran Member brain55's Avatar
    Join Date
    Jan 2008
    Posts
    1,774
    Location
    Brentwood, CA

    Default

    Quote Originally Posted by rbargeron View Post
    Right on the money Kuboman - they actually included two other parts in the kit with the longer pipe - a gasket for the housing and a new shorter dipstick so the oil level would be kept higher.
    Are we still talking about the L4150 because I don't remember it that way. The way I remember the problem was that the transmission gears were churning up the hydraulic oil causing an aeration problem for some people. The parts in the kit as I remember were the gasket, the tube, and a new drain plug with a spring pocket in it along with the spring to hold the new tube in place. The tube was used to move the hydraulic pick-up to a calmer part of the transmission. I don't remember a different dipstick, to me adding more fluid could exacerbate the problem. As much as I liked the L4150, it did have some idiosyncrasies that needed addressed.

  8. #28
    Elite Member rbargeron's Avatar
    Join Date
    May 2000
    Posts
    2,721
    Location
    MA
    Tractor
    L5450, L48, L3250, L345

    Default Re: Clunking noise at idlle M7040

    There could have been different versions of the kit. As I remember it there was no drain plug in the bag, just a short dipstick, the gasket and the longer pipe - which supposedly went deeper in the same location. The explanation was that the tips of the nearby gears were above the oil level so they scooped some air down into it. The new oil level was about an inch higher which, along with a deeper pickup, was supposed to cure it. (The symptom was a snapping sound from the FEL hoses when going along at road speed - they'd jump too.) I put more oil in mine and it made enough difference that I stopped thinking about it. Maybe there was more than one noise issue with the L4150? I do remember in those days the service guys in Columbus had a very positive view of that chassis - considered quite trouble-free. I've been bragging about my L3's ever since
    L345, L3250, L48, L5450, never enough attachments

  9. #29
    New Member
    Join Date
    Jan 2005
    Posts
    18
    Location
    texas
    Tractor
    Long 2510

    Default Re: Clunking noise at idlle M7040

    Just to be sure, are you familiar with the issue with the M7040? If so just out of curiostiy where did you hear that, and what exactly is the fix, thanks in advance for the info...
    Quote Originally Posted by rbargeron View Post
    It's not that kubota doesn't know what's causing the noise, they know it's a flow interaction in the hydraulic plumbing. It's not a mechanical threat to anything, but more of a nuisance that some customers will want fixed and others won't care about. Therefore they don't dive deep to fix them all. Their policy is probably to fix the ones people object strongly about.

    Back a few years, my L4150 made a random noise like that and the cause was a pump suction pipe that didn't reach down into the oil deep enough - so it sucked an air bubble once in a while. The fix was to replace the pickup pipe with a longer one (maybe a $10 part) - but it required separating the tractor to install it. My dealer said Kubota had authorized it under warranty on a case-by-case basis - it was more about customer goodwill than fixing a mechanical defect. I had bought my tractor 2nd hand so I had to buy the pipe. Still have it on the shelf - fixing the noise wasn't worth the trouble.

  10. #30
    Platinum Member
    Join Date
    Jul 2011
    Posts
    512
    Location
    SW Arkansas
    Tractor
    Rusty junk

    Default Re: Clunking noise at idlle M7040

    My MY2012 is doing it also. I honestly thought I had left the air conditioner on and the compressor was cycling, until I climbed back in and noticed that the A/C was turned off. Definitely sounds like a compressor cycling on and off to me.

Page 3 of 4 FirstFirst 1234 LastLast

Similar Threads

  1. '09 Gator 620i popping/clunking noise in front end
    By rickrs in forum ATVs & Utility Vehicles
    Replies: 1
    Last Post: 11-13-2012, 01:13 PM
  2. Clunking...
    By jake98 in forum Kioti Owning/Operating
    Replies: 6
    Last Post: 06-28-2012, 06:10 PM
  3. Kubota M7040 "clunking noise"@idle
    By NICOT in forum Kubota Owning/Operating
    Replies: 27
    Last Post: 09-25-2010, 04:02 PM
  4. Kubota M7040 "clunking noise"@idle
    By NICOT in forum Kubota Owning/Operating
    Replies: 10
    Last Post: 08-28-2010, 08:50 AM
  5. Clunking?
    By Camo in forum Kubota Owning/Operating
    Replies: 3
    Last Post: 12-24-2008, 12:55 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2016 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.