I have movement in the drivers side output shaft this is allowing the rubber uni joint to rub on the engine housing
Would this slop be coming from the #4 bronze bush or is it from the #7 side bearing
what is the best way to tackle this?
thanks
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| movement in diff output shaft https://www.ausmini.com/forums/viewtopic.php?f=2&t=93742 |
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| Author: | niffty64 [ Mon Sep 12, 2016 6:26 pm ] |
| Post subject: | movement in diff output shaft |
I have movement in the drivers side output shaft this is allowing the rubber uni joint to rub on the engine housing Would this slop be coming from the #4 bronze bush or is it from the #7 side bearing what is the best way to tackle this? thanks
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| Author: | simon k [ Mon Sep 12, 2016 6:47 pm ] |
| Post subject: | Re: movement in diff output shaft |
the correct answer is "it would be coming from the #4 bronze bush or the #7 side bearing, or maybe something else" either way, the best way to tackle it is to pull the motor out and look... |
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| Author: | niffty64 [ Mon Sep 12, 2016 6:58 pm ] |
| Post subject: | Re: movement in diff output shaft |
simon k wrote: the correct answer is "it would be coming from the #4 bronze bush or the #7 side bearing, or maybe something else" either way, the best way to tackle it is to pull the motor out and look... Can you tackle it from underneath with engine in? |
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| Author: | DavidE [ Mon Sep 12, 2016 7:26 pm ] |
| Post subject: | Re: movement in diff output shaft |
niffty64 wrote: simon k wrote: the correct answer is "it would be coming from the #4 bronze bush or the #7 side bearing, or maybe something else" either way, the best way to tackle it is to pull the motor out and look... Can you tackle it from underneath with engine in? You can but try, but the diff cover has to come off. |
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| Author: | drmini in aust [ Mon Sep 12, 2016 7:33 pm ] |
| Post subject: | Re: movement in diff output shaft |
And if you don't use the same shims and gasket thickness it will muck up the bearing preload. New gaskets are 3x thicker than originals. These bushes are more than 0.007" undersized in the bore. They need to be bored to fit the drive yoke after press fitting to the cover. Engine out job, IMO. |
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| Author: | niffty64 [ Tue Sep 13, 2016 5:51 am ] |
| Post subject: | Re: movement in diff output shaft |
thanks guys |
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| Author: | niffty64 [ Mon Oct 31, 2016 12:32 pm ] |
| Post subject: | Re: movement in diff output shaft |
the drivers side yoke had some movement. i removed the flange bronze bush to yoke is a reasonable fit (without measuring) but there is side movement in the gear drive shaft. now i am assuming there shouldn't be movement. maybe a bearing gone. looks like diff rebuild Any advice from guru's out there much appreciated  video below |
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| Author: | drmini in aust [ Mon Oct 31, 2016 12:51 pm ] |
| Post subject: | Re: movement in diff output shaft |
There is always some shaft side movement with the side cover off, the length of the shaft exaggerates it. re the rubber coupling rubbing, this is often due to the U-bolts being overtightened. That swells the rubber outwards. And modern coupling rubber is inferior to that used originally. A good mod is to toss both rubber couplings and fit QL5000 universal joints. Last `forever' compared to rubber ones. 
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| Author: | niffty64 [ Mon Oct 31, 2016 2:12 pm ] |
| Post subject: | Re: movement in diff output shaft |
drmini in aust wrote: There is always some shaft side movement with the side cover off, the length of the shaft exaggerates it. re the rubber coupling rubbing, this is often due to the U-bolts being overtightened. That swells the rubber outwards. And modern coupling rubber is inferior to that used originally. A good mod is to toss both rubber couplings and fit QL5000 universal joints. Last `forever' compared to rubber ones. Thanks doc. I did replace the rubber unis with nylon one and still had the noise. that is why i am digging a little deeper 
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| Author: | drmini in aust [ Mon Oct 31, 2016 4:34 pm ] |
| Post subject: | Re: movement in diff output shaft |
I suspect the noise is internal, could be a bearing as suggested, or a chipped tooth on the crown wheel. |
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| Author: | Asiemek [ Mon Oct 31, 2016 9:25 pm ] |
| Post subject: | Re: movement in diff output shaft |
Just finished rebuilding my diff (literally this evening) found that the fibre washer as well as the no.4 bush was resulting in the lateral movement of the output shaft. As stated previously there will be some movement but heapes better now. |
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| Author: | niffty64 [ Tue Nov 01, 2016 8:00 am ] |
| Post subject: | Re: movement in diff output shaft |
thanks guys |
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