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Should this happen?
Padstar - 27/4/14 at 04:52 PM

Hi,

I was always under the impresion that the rear MX5 differential was not meant to come apart with ease.

Whilst i was moving the car out the garage last weekend the one of the cogs that links the drive shaft to the diff popped out? Should this happen and if so how do i put it back? I have tried a simple push but it only goes in so far. I didnt want to give it a whack as it looked like if it is supposed to come apart then there is probably some logic behind it rather than just a swift twatt with the mallet.

Currently it looks like this.

Dif 1
Dif 1


Dif 2
Dif 2


theprisioner - 27/4/14 at 04:54 PM

Is this car on the road?


ali f27 - 27/4/14 at 05:01 PM

Kinda know were the last comment is going next those welds are really crap


jacko - 27/4/14 at 05:03 PM

Never mind the diff what about the welds
Sorry but they don't look very good
Jacko

What welder have you used stick ?

[Edited on 27/4/14 by jacko]


Padstar - 27/4/14 at 05:09 PM

No its not on the road and yes i know the welds are crap.

I have a profesional fabricator coming to redo all the welding - thanks for the concern.


jacko - 27/4/14 at 05:18 PM

quote:
Originally posted by Padstar
No its not on the road and yes i know the welds are crap.

I have a profesional fabricator coming to redo all the welding - thanks for the concern.



Thats good as we would not like to think you hurt your self if something broke
This forum is great to stop people making mistakes and helping if we can
good luck with the build
Jacko


Padstar - 27/4/14 at 05:26 PM

Thanks, I very quickly realised that my welding skills were not anywhere near good enough hence calling in for help from a pro.

Any comments on the diff?


ali f27 - 27/4/14 at 06:01 PM

well have you pulled it all the way out is it held in with a circlip or other fixing bearing in mind that will be how you dissasemble it anyway so probs alright have never had 1 in bits so somebody else will have better answer


Slimy38 - 27/4/14 at 06:20 PM

The MX5 diff has stub spindles that are just locked in with a circlip. To reinsert requires the skilled application of 'summat heavy' ... you do just tap it back in place. The little flared collar is meant to sit inside the oil seal lip as a guide on how far it needs to go back in.

Under normal working the distance between the diff and the rear upright doesn't change (or at least not very much), so there are no forces present to pull it open. However, I still needed to get a crowbar on mine to separate the stub spindles from the diff, so that does suggest yours wasn't clipped in.

Have you had it apart before? Can you still see the circlip on the end of the spindle, is it intact?


chrism - 27/4/14 at 06:24 PM

Have a look through the service manual and it should tell you how they are removed and installed.

https://drive.google.com/file/d/0BxnNZZ_tBs7_bXZ0NEs2VDhXZjg/edit?u sp=sharing