Date:         Tue, 27 Apr 1999 23:35:20 -0400
Reply-To:     David Beierl <synergx@IBM.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
Comments:     RFC822 error: <W> MESSAGE-ID field duplicated. Last occurrence
              was retained.
From:         David Beierl <synergx@IBM.NET>
Subject:      Re: Syncro rear hub removal, spindle nut size
Comments: To: S2 <satew@MNINTER.NET>
In-Reply-To:  <001c01be9126$00782090$70c1c1c1@ntws01>
Content-Type: text/plain; charset="us-ascii"

At 22:20 4/27/99 -0500, S2 wrote:
>In my 1984 Haynes on page 151 it says "Wheel hub to wheel shaft (castellated
>nut) ...... 350nm  258 lbf ft".
>In my 1985 Bentley on page 46.6 and 46.9 it says 350nm (253 ft lb), but on
>page 42.4 it shows both a new and an old axle nut.  The new one is said to
>be torqued to 500nm (360 ft lb), and there is a note which I quote:
>
>During repairs on vehicles prior to VIN 25ZBH119362, install new sleeves and
>axle nuts and torque nuts to 500 Nm ( 360 ft lb ).

Ok -- I've got the '91 Bentley which has the note above, but omits any
other mention of the old nut and has a caution box saying to ALWAYS [their
emphasis] use a ten-slot nut and torque to 500 nm.

>
>It looks like the recommendation is to buy the new nut and sleeves and use
>the higher torque setting.  So, if one is using the old nut and does not
>replace the sleeves, should the lower torque be applied?  It looks like the
>new nut may be of sterner stuff than the old.

ISTM that they must have had problems with stripping out the splines, and
went to the stronger nut, the same way that they substituted a stronger
alternator pivot bolt with higher torque values on the 1.9l engines.  They
don't put it as a recommendation..."CAUTION On any repairs which require
removal of the axle nut ALWAYS reassemble using a 10-slot crown nut
tightened to the exact torque specification.  Failure to tighten the axle
nut to the correct specification could result in damage to the hub/axle
splines."

Certainly if you re-use the old nut you must use the lower torque value
(not even mentioned in '91 Bentley).

david
David Beierl - dbeierl@ibm.net