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| Diff rebuilding issues https://www.ausmini.com/forums/viewtopic.php?f=5&t=13542 |
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| Author: | Christoph [ Mon Nov 28, 2005 5:20 pm ] |
| Post subject: | Diff rebuilding issues |
I recently got a full gearbox/diff rebuild kit from the uk. I went to install the new planet gears in the diff and they seem to jam up after rotating the shaft half a rotation. Are there different teeth on the later model diffs?. Also when i bolted the crownwheel with two new fibre washers it locked up the whole unit completely... im not really after a locked diff for around town  . Has anyone had similar issues?
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| Author: | drmini in aust [ Mon Nov 28, 2005 6:13 pm ] |
| Post subject: | |
All the gears have same tooth count, even late Rover ones. Mine locked up like that once, then I found a thin piece of fibre washer was still stuck on the back of the side gear. Took it off and presto! 
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| Author: | fuzzy-hair-man [ Tue Nov 29, 2005 9:10 am ] |
| Post subject: | |
A diff that I got as a spare if I ever use it had the same thing ie once the crown wheel was bolted down it was really hard to turn the shafts (could just be done) there didn't seem to be anything exceptional about the diff so I concluded it was normal and the difference in wheel speeds on the road caused this locking to break away. ie it was a very slight limited slip function to a standard diff. Correct me if I am wrong. 
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| Author: | GAT51 [ Tue Nov 29, 2005 9:30 am ] |
| Post subject: | |
I found the same thing when I rebuilt my diff. Turned out the thrust washers were pushing the planet wheels too far in with the result the diff would lock up. The wear in the cage was also not even, so the lock up depended on where the washer and cage were during rotation. The new washers being used are thicker than standard to allow for wear in the cage. Where the cage is not worn as much as allowed for by the washer - presto lock up. I couldnt get the original washers, and was offerred an option of grinding the housing out to fit. I finally thinned the washers down by hand (difficult) and no longer have the problem |
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| Author: | Christoph [ Tue Nov 29, 2005 10:11 pm ] |
| Post subject: | |
Oh ok, yeah the kit actually came with the newer type thrust washers with the tab, which i carefully took off, maybe they are slightly thicker than the older type?...ill have a play around tomorrow. Thanks for the input |
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| Author: | drmini in aust [ Wed Nov 30, 2005 5:39 am ] |
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It's worth grinding the diff a little to fit the new style washers in with the lugs. They stop the washer spinning in the diff hemisphere, which is what wears it. 
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| Author: | TheMiniMan [ Thu Dec 01, 2005 10:33 pm ] |
| Post subject: | |
i agree with the good Doc,,,works a treat,,,keep the tabs & grind the carrier |
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