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Rear differential cone/fiber washer issues

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PLT-1 Avatar
PLT-1 Paul G
Weeki Wachee, Brooksville, USA   USA
I wonder if they will just break in ??...



58 MGA coupe 3.4



Edited 3 time(s). Last edit at 2017-07-17 07:24 AM by PLT-1.

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late 64 Terry O
Milton, Ont, Canada   CAN
" cleaned it all up and reassembled it." does this mean you did not change anything........? and you say "it still feels lumpy" does this mean you can feel it it is not smooth when you turn it over and the spider gears are moving..... , if you let the axles move and just the pinion and crown gear move (spider gears do not rotate), does the "lumpy" go away?.......confused smiley

PLT-1 Avatar
PLT-1 Paul G
Weeki Wachee, Brooksville, USA   USA
Sorry, ... Yes I replaced the fiber washers and cone washers... I was also very careful to orient the parts as the came out in order to replace them back into their previous positions.

I just went out there and I can't rotate the ring gear free of the carrier/spider assembly. It's binding up and rotating together. If I turn the axle quickly there is some slippage between the two parts (ring gear/spider assembly)
I was careful to replace the pin flat side to the driver side just as it was.
It's binding up somewhere, It seem like it wouldn't go together incorrectly ?
It went together easy, I did not beat on it. It just tapped right in??...
I guess I will pull it apart and look at it....




58 MGA coupe 3.4



Edited 2 time(s). Last edit at 2017-07-16 04:55 PM by PLT-1.

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Re: smiling smiley
#4
late 64 Terry O
Milton, Ont, Canada   CAN
yes they should go together easy..... only need your fingers to do this........if they are too tight then they will cause the "lumpy" or "notchy" feel that you may be encountering........ means the "washers" that you are using are too thick....... there should be a little "play " in those gears, the axles are binding which cause the spiders to move with the main crown gear.........only way not to feel this would be to pull the axles out of the diff enough that they do not engage on the gears..... this would then allow you to turn the crown gear only....... so the spiders are not in play......... but since you are pulling the spiders out again, then try the pinion again with out the spider gears engaged..... just go slow so that the axle gears do not fall out as well.......as now the axles are not engaged with spiders gears removed....... should be smooth and very little if any back lash....... thumbs up

Re: smiling smiley
#5
PLT-1 Avatar
PLT-1 Paul G
Weeki Wachee, Brooksville, USA   USA
Thank you guys for your help and advice !

OK, well... I took it all apart again and the ring gear/crown gear is smooth when not connected to the carrier/spider assembly.
I reassembled it again and it is doing the exact same thing.
NOTE: During the assembly (both times), I was able to slip the cone washers under the top and bottom spider gears while the spider gears where in place.
The assembly did go together pretty easily... I just tapped the pin in lightly, no problem.

I wonder if they will break in and smooth out ??...

Here is a new link....





58 MGA coupe 3.4



Edited 1 time(s). Last edit at 2017-07-17 07:25 AM by PLT-1.

Re: smiling smiley
#6
Donthuis Avatar
Donthuis Don van Riet
Rijswijk, ZH, Netherlands   NLD
I understood from posts a number of years ago, when I contemplated renewing them too, over time some wear will develop on those parts and free play will return. It sounds cynical, but is not meant like this: unlike the curved brass ones the flat fibre ones completely wear away in just a few years. Most people renewing them, will not find the old fibre ones back eye popping smiley
My present MG specialist stated the same: fibre ones do not last long enough thumbs down

I prepared two readymade slightly thicker flat brass ones to replace the fibre ones with, but since my banjo axle hardly gives a clunk, I have not mounted them since this preparation..... grinning smiley

In reply to # 3553441 by PLT-1 Thank you guys for your help and advice !

OK, well... I took it all apart again and the ring gear/crown gear is smooth when not connected to the carrier/spider assembly.
I reassembled it again and it is doing the exact same thing.
NOTE: During the assembly (both times), I was able to slip the cone washers under the top and bottom spider gears while the spider gears where in place.
The assembly did go together pretty easily... I just tapped the pin in lightly, no problem.

I wonder if they will break in and smooth out ??...

Here is a new link....


PLT-1 Avatar
PLT-1 Paul G
Weeki Wachee, Brooksville, USA   USA
Thank you Don !...




58 MGA coupe 3.4

Michael74MGB Avatar
Michael74MGB Michael Austin
Odessa, TX, USA   USA
1974 MG MGB MkIII "Maggy"
There isn't a lot that can be done, really. No shimming or other assembly tweaking. Put washers in, reassemble, done! They are fiber washers, and WILL over time wear in a bit. I'd seal it up, put in fresh 90wt, and see how it does on the road. Seems like spinning a diff with no load can cause all kinds of concerns, but they behave fine under load. Case in point: The old Fox body Ford Mustangs. Put one up on jack-stands and run it in gear and you'll swear the diff is going to explode from the racket it's making. Put it on the road and all is fine. I day drive it and see what you got; may indeed be OK....



74 MGB: APT VP11 cam, lifters, valve springs; 9:1; ported head; TT exhaust; vernier timing gear; wizard aluminum radiator; dizzy by Jeff S.; stock HIF4's; it goes on and on.....

ozieagle Avatar
ozieagle Gold Member Herb Adler
Geelong Victoria, Australia   AUS
1958 Wolseley 1500 "Wooly"
1966 MG MGB "Bl**dy B"
I had a different thought, depending on how you are "testing" the diff, maybe a wheel bearing is on the way out.

Herb



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PLT-1 Avatar
PLT-1 Paul G
Weeki Wachee, Brooksville, USA   USA
Thank you Michael and Herb !...
Yes, I have decided to just button it up and test it when the car is completed.
Thank you for your advice smileys with beer...




58 MGA coupe 3.4

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