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  1. #1

    Default That dreaded "Pop" sound

    Was pushing on a small stump that was completely undercut in a sand bank with my TC35DA and 16LA FEL and it was loose, so loader was about hood height and I heard a load "pop" in the front somewhere.
    Ended up losing 4WD as a result. Went underneath and checked drive shaft and it all was good. Turning it will make rear wheels move, but not the front. Took drive shaft out, lifted front wheels off the ground and then turned front wheels...no movement of I think its the pinion where the drive shaft hooks up.
    I can spin the pinion by hand and of course the front wheels don't move. When I do that it doesn't make any kind of grinding or odd sounds.
    So, is it possible that I snapped the pinion in two and the rear part now spins freely?
    It works in two wheel drive just fine (except that I slip a lot now :-)), so if anyone has had this happen, please tell me. I know I have two take it apart, but would like to hear from the forum first.

    Rick

  2. #2
    Epic Contributor Soundguy's Avatar
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    Default Re: That dreaded "Pop" sound

    Hit the CNH site and lookup the parts section, and get an exploded diagram of your front end.

    good luck

    ( PS.. cut's aren't great for landclearing.. bulldozers are )

    soundguy

  3. #3
    Veteran Member
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    Oct 2005
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    1,432
    Location
    N. E. Ohio
    Tractor
    tc- 29d

    Default Re: That dreaded "Pop" sound

    I think CNH had a problem with bolts coming loose in differential.
    dqdave1; tc-29D; woods 7500 bh; 7308 fel, land pride tiller, land pride rake, gill pulverizer, 60"mmm. , bucket forks , MZ16H

  4. #4
    New Member
    Join Date
    Oct 2007
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    14
    Location
    mid coast maine
    Tractor
    2003 tc 40

    Default Re: That dreaded "Pop" sound

    I know of one tc 40 that had the ring gear bolts shear off in the front diff.

  5. #5

    Default Re: That dreaded "Pop" sound

    Ok, but if bolts came loose or sheared off I would be hearing sounds from the differential right? Been using it in 2WD and I hear nothing at all. Can't take it apart till next week.

  6. #6
    Veteran Member
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    Oct 2005
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    1,432
    Location
    N. E. Ohio
    Tractor
    tc- 29d

    Default Re: That dreaded "Pop" sound

    If it was my unit; I would not be useing it at all till I took it apart to see what happened; turning the front differential with something broken in it will probably cause more problems and cost of repair.
    dqdave1; tc-29D; woods 7500 bh; 7308 fel, land pride tiller, land pride rake, gill pulverizer, 60"mmm. , bucket forks , MZ16H

  7. #7
    Epic Contributor
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    jinman's Avatar
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    Feb 2001
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    21,014
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    Texas - Wise County - Sunset
    Tractor
    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: That dreaded "Pop" sound

    Quote Originally Posted by housemasters
    Ok, but if bolts came loose or sheared off I would be hearing sounds from the differential right? Been using it in 2WD and I hear nothing at all. Can't take it apart till next week.
    I would quit using it immediately. Since you have been using it with no noise, what will you do if you hear more noise? Will you keep going and hope it goes away? Will use turn a repair into a very expensive repair? Something is broken and you know it. If youi keep using it, you don't expect too much mercy from us if it turns out very bad, do you? My vote is to stop using that tractor until you can fix it. The only driving I'd do is onto a trailer to take it to get it fixed or driving it into my shop to fix it myself. Continued use is just "askin' for it."
    Jim


  8. #8
    Member
    Join Date
    Jan 2007
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    42
    Location
    Mustang OK
    Tractor
    NH TC-30, JD 5105

    Default Re: That dreaded "Pop" sound

    When I had my TC-30 in the shop for some work the guy there cautioned me on using the loader in 4WD. He said the extra strain on the front end could break the gears. Sounds like what happened to you.

  9. #9
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: That dreaded "Pop" sound

    I have to agree with DQdave.. and jinman.

    This isn't going to 'heal'... while you may get lucky and not do too much more damage to it.. I'm betting not. I'd fix it where it sat if it was convienient.. or take it to my shop.. or the delaer / mechanic of choice.

    Soundguy

  10. #10
    Super Star Member Egon's Avatar
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    Aug 2001
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    Nova Scotia, Canada

    Default Re: That dreaded "Pop" sound

    cautioned me on using the loader in 4WD
    Four wheel drive is the only way my tractor works when using the loader. Most of the rest of the time its in four wheel drive too!
    Egon
    50 years behind the times
    Livin in a
    Worn out skin bag filled with rattlin bones

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