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popping rearend noise 4450
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4450
Posted 2/4/2017 08:26 (#5815667)
Subject: popping rearend noise 4450


Nc Ks.
Got a 4450 mfd with 16000 hrs. bought used at 10000, don't know if back end has ever been in to. Have a loader on this tractor so it gets a lot of forward/backward use.
A year ago left rear wheel wedges that hold rim to cast center became loose and I didn't catch it until rim was too worn according to JD for just new wedges. Needing new tires anyway, they replaced rim and wedges on that side on new wedges on the right side wheel. Lately I've noticed a single popping noise sometimes when I change direction. Not always and if releasing the clutch/inching pedal easy, not noticeable. Seems like it comes from the right side that has the original rim and it's more apt to do it with the front wheels turned to the right, but it can do it with them straight or turning to the left. Checked the wedge to rim bolts and they are all tight. Axle wedges looked tight but wheels were set out to end of axle, so I broke the right wheel loose and moved it in an inch and retightened. None of that seemed to make a difference. So my question now is could it be somethin internal and what. Normal gear slack for that high of hours? Otherwise no noticeable changes, noise or vibration wise and no shavings in powershift or hydraulic filters. Any thoughts appreciated.
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Ron (Cen. IL.)
Posted 2/4/2017 08:27 (#5815669 - in reply to #5815667)
Subject: RE: popping rearend noise 4450


Central Illinois


Loose wheel weight?
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billiet330
Posted 2/4/2017 08:39 (#5815701 - in reply to #5815669)
Subject: RE: popping rearend noise 4450


Ron (Cen. IL.) - 2/4/2017 08:27

X 2

Loose wheel weight?
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Super 65
Posted 2/4/2017 08:46 (#5815725 - in reply to #5815701)
Subject: RE: popping rearend noise 4450


South Central Kansas
X3 on loose wheel weight. A bad axle bearing can also make a popping noise.
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Hedge tree
Posted 2/4/2017 09:17 (#5815800 - in reply to #5815667)
Subject: RE: popping rearend noise 4450



Central Kansas
Check those rim clamp bolts. Could have a couple loose or one broken and the rim will shift a bit, making that popping sound. For me, the next sound was the 4440 dropping down on the tire, ripping the fender off and ruining a nearly new pair of overalls. Just a thought.
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super steve
Posted 2/4/2017 09:48 (#5815868 - in reply to #5815667)
Subject: RE: popping rearend noise 4450


SWOntario
i vote axle bearing
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scooter75
Posted 2/4/2017 10:17 (#5815921 - in reply to #5815667)
Subject: RE: popping rearend noise 4450



St George IL
Even though you checked the rim to cast inner bolts they still could be loose. Most of the time the shank of the bolt gets completely rusted together with the cast inner. Look for signs of wear where the wedges contact the rim.
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4450
Posted 2/4/2017 13:57 (#5816385 - in reply to #5815921)
Subject: RE: popping rearend noise 4450


Nc Ks.
Thanks for suggestions. It has big inner wheel cast weights and never gave that a thought. When axle bearings went out on the old 4430's, they would drip oil out the end of the axle down onto the wheel. This isn't doing that but not saying that couldn't be the problem. I was moving some brush with the grapple and had to drive front wheels down through a foot deep ditch and up onto the other side. Was slipping inching pedal to take it easy. Something about having the front wheels down in the ditch when changing directions made that pop more noticeable. Will keep looking.
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tjdno1
Posted 2/4/2017 18:09 (#5816897 - in reply to #5816385)
Subject: RE: popping rearend noise 4450


Cartwright, McKenzie County, North Dakota, USA
Jack up that side and watch to see of the tire moves down when lifting it off the ground, if so its an axle bearing. Had one go that tore a chunk out of the housing when a ball from the bearing went through the final drive gears.
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twraska
Posted 2/4/2017 22:09 (#5817437 - in reply to #5815667)
Subject: RE: popping rearend noise 4450


Wallis, TX

Loose planetary/spline/axle fit.  We have a 20K hour 6030 does that, will also do it when  you hit the brakes.  Been that way since we got it a few thousand hours ago.

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