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Tombo
PostPosted: Mon Sep 07, 2009 5:30 pm 
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I'm about to put a rod change box together, ony i can't find my manuals (still in boxes somewhere :oops: )

What i'm after is the top picture of the box so i put the selectors back on the cluster the right way.

Also what is the diff side housing shim process, really i need the formula for the clearance minus gasket thickness to set the preload.

Thanks,
Tom

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drmini in aust
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PostPosted: Mon Sep 07, 2009 7:24 pm 
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Sorry I don't have a pic of the selectors, but they are not hard to figure out.

Later style diff `angular contact' bearings (with `thrust' marked on one side) have .005" preload when new. The thrust marked faces go to outside.
Early style `deep groove' diff bearings only got .001-.002" preload.

I assemble the RH side cover and tighten the 5 bolts.
Then, I sit the box on its RH side. This stops the shims behind the LH cover falling about and getting trapped out of position before the cover is tightened..

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simon k
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PostPosted: Mon Sep 07, 2009 10:00 pm 
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drmini in aust wrote:
Sorry I don't have a pic of the selectors, but they are not hard to figure out.

Later style diff `angular contact' bearings (with `thrust' marked on one side) have .005" preload when new. The thrust marked faces go to outside.
Early style `deep groove' diff bearings only got .001-.002" preload.


the current ones aren't marked with 'thrust' sides are they?

the gaskets I put in my gearbox a few weeks ago were .015" thick - so twice that is pretty thick. I put a shim between the inner race and the crown wheel to move the bearing out so it didn't need 60 odd thou of shims

shims = gasket - .002"

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drmini in aust
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PostPosted: Mon Sep 07, 2009 10:09 pm 
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Yeah the side gaskets now are bloody thick.
I put a .010" shim on the RH cover to start with.
I have also built a few boxes with NO side cover gaskets, just Loctite 515 Master Gasket sealant. No leaks... :wink:

re the bearings, the angular contact outer rings have a thick side, this goes outwards. Used to be marked `thrust' but maybe the caring folk who make these now don't bother. :lol:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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simon k
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PostPosted: Mon Sep 07, 2009 10:16 pm 
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drmini in aust wrote:
re the bearings, the angular contact outer rings have a thick side, this goes outwards. Used to be marked `thrust' but maybe the caring folk who make these now don't bother. :lol:


oh balls.... I hope that's the side with the writing on it

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drmini in aust
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PostPosted: Mon Sep 07, 2009 10:21 pm 
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Yep it is, you can sleep now Simon. :P

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simon k
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PostPosted: Mon Sep 07, 2009 10:25 pm 
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drmini in aust wrote:
Yep it is, you can sleep now Simon. :P


thanks Kev - dodged another bullet :roll:

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Tombo
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PostPosted: Tue Sep 08, 2009 7:25 am 
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simon k wrote:
shims = gasket - .002"

Thanks Simon,

Thats the equasion i was after :D

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Dean Hutton's first car was a Mini.

kimini wrote:
:mrgreen: It's the boobs and testosterone that make this place fun-ner :lol: !!

Jimmyinamini wrote:
It's not nice to throw spank on the floor.
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