| Author |
Message |
    
discondixie
| | Posted on Friday, November 29, 2002 - 02:32 pm: | 
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Today the rear rear wheel appears to have locked within the differential. When I turn right the right rear wheel "clunks" and turns. I am afraid that somehow the rear diff has failed. Any help would be appreciated. Lee |
nadim
| | Posted on Friday, November 29, 2002 - 04:36 pm: |
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I think that that sounds like a wheel bearing seizure.
I am thinking that if the rear diff fails, then it should have shrapnelled all over the inside of the housing, affecting much more than one single rear right wheel...right?
I would tend to check the rear right wheel bearing for that diagnostic.
Goodluck |
discondixie
| | Posted on Friday, November 29, 2002 - 05:36 pm: |
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Nadim,
Let me give you some more background since you sound like you can help. It does not make any sound or give any sign of trouble when traveling straight forward or reverse. Only when you begin to turn left. Also, the ABS light came on simultaneously. My wife was driving it at the time so I had to verfiy everything else myself. I would love to think it is "just" and wheel bearing. Thanks for your help and any further info you could give. Lee |
chris
| | Posted on Friday, November 29, 2002 - 05:45 pm: |
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first i would check to see if there is any gear oil in the dif. if not then trouble. check all the fluids for the power train while your at it. jack the vehicle up and check the wheel bearings as well. when where they last greased oiled our adjusted. if you cant remember then service them you will be surpprised at what comes out of there. any off roading lately? maybe a seized caliper our worn pads down to the metal? ps ita the weekend so get to it |
nadim
| | Posted on Saturday, November 30, 2002 - 12:05 pm: |
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The fact that there is no sound when going straight (front or backwards, as you state), and only when turning left, seems to hint of:
1. Lack of Lubrication as previously suggested,
2. Possible bushing wear?
3. Or, worst case scenario, some chipping of the gearing/parts of the differential itself, since the Rover open differential goes to work only when the truck is not going striaght.
I would highly suggest that you tend to it a.s.a.p. in order not to affect anything else.
If you can tell me what kind of sound it is, I may be able to think more of it (grinding, chipping, skipping, locking...)
Goodluck... |
discondixie
| | Posted on Sunday, December 01, 2002 - 04:20 pm: |
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The sounds was a loud "chunk" followed by silence then "chunk" again. It was definately torqued up when the chunk happened as the wheel advance abrutply when the sound was made. since my wife told me the sound was made as she turned left, that is the only direction I tried. I made it happen once then I had my brother operate it while I was outside listening.
It could be a wheel bearing but I would not think it would only show itself when turning. Here is another question. I have jacks and jackstands, and can do most cursory work needed; but, does this sound like a job for a lift? I would not want to tow it twice. I have been doing no offroading in that vehicle (the wife and I swap disco for RR during hunting season because of the center diff lock) and no signs of any rear diff fluid leak. Just the constant PS fluid leak.
Again, thanks for your help. Lee |
CHRIS
| | Posted on Sunday, December 01, 2002 - 05:28 pm: |
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HEY I BET YOU THAT SOME TEETH HAVE BEEN SHERED OFF OF THE CROWN. THE ONLY WAY TO FIND OUT IS TO PULL YOUR DIF OUT. ITS NOT THAT HARD TO DO. FIRST PULL THE HALF SHAFTS, UNDO THE DRIVE SHAFT THAN UNDO THE NUTS HOLDING THE DIF IN PLACE. FIRST THOUGH DRAIN THE GEAR OIL AND SEE IF ANY BITS COME FLOATING OUT. THATS WHERE I WOULD START DRAIN THE GEAR LUBE. OBIOUSLY SOMETHING IS WRONG AND IT NEEDS TO BE FIXED YOU CAN ONLY DIAGNOSE THIS SO FAR. THE REPARE MUST BE MADE. OR THE AXLE SHAFT HAS BROKEN AND THE BROKEN BIT HAS FALLEN INTO THE DIF. OR THE SPIDER GEARS ARE BROKEN. OR THE PINION IS BROKEN. IM SURPRISED THAT YOU HAVENT A LEAST DRAINED THE GEAR OIL. GET YOUR HANDS DIRTY CAUSE BY THE SOUNDS OF IT ALL THAT HAS BEEN DONE IS A VISIUAL INSPECTION AND REALLY WHAT CAN YOU TELL FROMM PEEKING UNDER THE TRUCK. LET ME KNOW WHAT HAPPENS |
nadim
| | Posted on Sunday, December 01, 2002 - 05:41 pm: |
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Chris put it well, even if it were all in ´´shouting`` CAPS...hehehe
Goodluck...I cannot diagnose what it may be...sorry if I was of no help. |
discondixie
| | Posted on Sunday, December 01, 2002 - 06:17 pm: |
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No, everyone's comments have been helpful. I just needed those comments to decide whether it is a project I could handle on my own. If I get it towed home and can fix it, great. If I get it towed home and cannot, then it is another tow charge to my mechanic. My concern is that dropping the rear end is really a job for a lift and I am leaning towards having the tow to my mechanic. The truck is at a local parking lot, no need to tow it until Monday anyway because of the holiday. Thanks for the replies. Lee
PS What is the best replacement source/brand power steering pump? I might as well fix that while it is out of service. Lee |
Alex Moore (Alexmoore)
| | Posted on Sunday, December 01, 2002 - 11:10 pm: |
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I would think that you might have an axle with the end broken off in the differential. Happened to me. Made no noise in forward or reverse. First thing I would do is pull out both axles to check for damaged splines. If you don't find anything there you will have to yank the diff to check it! Easy to do on the rear axle just smelly and dirty, plus your half way there once you've pulled the axles.
OE pump is only way that I have seen. This pump is not like any I have ever seen on an asian or domestic vehicle. (Have an auto shop in MO.)
Good luck & don't forget to post the results of your diagnosis.
Alex |
Wayne
| | Posted on Monday, December 02, 2002 - 06:29 am: |
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I would put money on a damaged crown wheel in pinion. Pull the axles and diff center out and drive home on the front diff. As soon as you remove the center you will see the problem, what ever it may be so you may as well start there.
Wayne |
Wayne
| | Posted on Monday, December 02, 2002 - 06:30 am: |
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I would put money on a damaged crown wheel and pinion. Pull the axles and diff center out and drive home on the front diff. As soon as you remove the center you will see the problem, what ever it may be so you may as well start there.
Wayne |
Rob Davison (Pokerob)
| | Posted on Monday, December 02, 2002 - 10:07 am: |
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http://www.meridianautoparts.com/
though not on the site. they sell the pumps and are the best price / quality around
rd |
Peter Matusov (Pmatusov)
| | Posted on Monday, December 02, 2002 - 08:14 pm: |
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Lee,
if you haven't checked it yet - you can do it on your own. Five bolts hold the axles on each side, four nuts - rear u-joint, and a dozen or so keep the third member attached to the housing.
if you pull the axles, you'll know if that's them or crown (ring) gear in your diff.
The third member is heavy but not THAT heavy. Put an oil pan underneath, 'cause all this crap starts pouring out as soon as a crack appears between the 3rd member and the housing; it smells ugly and is sticky.
my bets are on the chipped ring (or, less likely, pinion) gear teeth. if this is the case, your best bet is to buy a used 3rd member and swap it in (check with the vendor to make sure it has the same gearing as you; stock is 3.54:1).
peter |
Sam
| | Posted on Monday, December 02, 2002 - 11:33 pm: |
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You can easily pull the rear diff working on your back. this will atleast save you a few hours labor from the mechanic. Get towing insurance or triple AAA - money well spent on a land rover..where are you in the south??? . |
michael
| | Posted on Tuesday, December 03, 2002 - 04:03 am: |
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could it be broken gears inside the diff (the planet gears or whatever they are called). I thought r/p gear teeth failure should make noise regardless of turning or going straight ahead. |
Peter Matusov (Pmatusov)
| | Posted on Tuesday, December 03, 2002 - 12:19 pm: |
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yes |
discondixie
| | Posted on Tuesday, December 03, 2002 - 01:06 pm: |
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I am in SC and I thank everyone for their responses. I am seeing the votes for pinion gears coming in strong. Here is some evidence to support that from my second favorite site http://www.howstuffworks.com/differential2.htm
If you scroll down that page you can see that the pinion gear does not even operate when the wheels are at matching speeds. I am pulling the axles tonight, I will let everyone know. Lee |
discondixie
| | Posted on Wednesday, December 11, 2002 - 02:22 pm: |
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Well the verdict is in. The whole diff self destructed. Teeth missing from pinion and crown. It is hard to tell what started the chain reaction. So I am in the market for a good rear diff if anyone has any good sources for used or rebuilt it would be much appreciated. Thanks, Lee |
James F. Thompson Jaime (Blueboy)
| | Posted on Wednesday, December 11, 2002 - 03:16 pm: |
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might want to call Bill Davis at Great Basin Rovers. he might be able to help you out.
801.486.5049
Jaime |
Peter Matusov (Pmatusov)
| | Posted on Thursday, December 12, 2002 - 02:26 pm: |
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Oh, Lee, and while you're at it, add a TrueTrac!
peter |
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