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Re: rear hub locknut

To: Kip Williams <kipannette@hotmail.com>
Subject: Re: rear hub locknut
From: Dave & Marlene <rusd@velocitus.net>
Date: Tue, 03 Aug 2004 15:00:28 -0600
Hi Kip,

This nut requires a socket that is a 2 and 13/64 socket. It is 8 sided 
not 6 sided.  You can get it here, part # BCS T12, but they want $65 for 
it. It DOES have a nice square cut end with no entry taper & fits very well.
http://www.britishcarspecialists.com/
Maybe you can borrow one somewhere. Other 12 point sockets of strange 
sizes will get a partial grip on the nut. Even a pipe wrench. You can 
sometimes get the nut off with a makeshift tool but the nut is quite 
thin & should be put back very tight, about 80 - 100 ft-lb. You only get 
a couple of chances before ruining a very expensive nut so the correct 
socket is very helpful when tightening the nut.


There is a spacer ring between the bearing & the outer flange.  The ring 
protrusion beyond the flange, with gasket installed, is speced at .001" 
to .004". The pressure of the flange on the ring, when the lug nuts are 
fully torqued, should assure that the bearing is fully seated in the 
hub. A typical gasket measures .010" thick uncompressed, & .004" when 
compressed. So if the ring sticks out more than .004" the gasket won't 
seal. Use Hylomar HPF or equivalent on all gasket surfaces.

The lug nuts must be evenly torqued to 50 ft-lb for  a good gasket seal 
& to make sure that the flange seals well. It sometimes happens that 
these nuts work loose with the result that the splined hub comes loose. 
The first sign of this is oil leaking out of the hub flange. The second 
sign is a wheel coming off. The original nuts are self locking & not 
recommended for reuse. Most people have success with putting red Loctite 
on the used nuts.

Dave Russell
BN2

Kip Williams wrote:
> I found this message in the archives, but not the reply.  I now have the 
> same questions.  I'm wondering if someone would please post a response 
> again. Thanks-Kip 62 BT7 II
> 
>> Can someone provide me with the torque requirement for the rear hub
>> locknut. I searched the archives and was unable to find this information,
>> nor is it listed in the workshop manual.  I am also wondering if any type
>> gasket dressing is used on the thin paper joint gasket or if it is
>> installed as is.

Check out the new British Cars Forum:
http://www.team.net/the-local/tiki-view_forum.php?forumId=8




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