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Re: Rear axle

To: "Max Heim" <>, "MG List" <>
Subject: Re: Rear axle
From: "mgamgb" <>
Date: Sat, 16 Jul 2005 11:01:27 +1200
The diff carrier location is set by selecting spacer washers that go on the
outside of the diff carrier bearings. There is no threaded adjustment for
the location of the carrier as there is in the banjo diff.
The spacer washer thickness are determined beforehand by measuring up the
housing and the assembleled diff carrier complete with bearings.
This allows for production variations in the machining of the housing,
carrier, and the bearings themselves.

The calculations for the thickness of the spacer washers include an alowance
for the necessary preload on the diff carrier bearings, so to allow for
assembly the housing has to be stretched slightly.

Ian F

----- Original Message ----- 
From: "Max Heim" <>
To: "MG List" <>
Sent: Saturday, July 16, 2005 4:46 AM
Subject: Re: Rear axle

> Yes, that is pretty scary, all right.
> But what I don't understand is the need for this gimcrack procedure in the
> first place. If I'm the engineer, and the first axle comes off the line,
> we start to dismantle it for QA, and the pumpkin is .012" too large to
> out of the housing, I don't go back to my drawing board and invent a
> medieval device to spread the casing, and immediately order it into
> production. I go to the housing drawing and change the hole dimension by
> .015, and send it out as a change order. That would be the rational
> response, but then it is pretty obvious that rationality didn't have a lot
> to do with the arcane goings-on inside the ineffable
> Austin-Morris-Nuffield-Leyland universe... again, I say, good grief...
> --
> Max Heim
> '66 MGB GHN3L76149
> If you're near Mountain View, CA,
> it's the primer red one with chrome wires
> on 7/15/05 5:58 AM, Bob Howard at wrote:
> > Max,
> >  Take a look at illustration Ha.1 in the workshop manual.  That's the
> > bizzare stretcher rig.  The Salisbury axles have deep holes in the
> > casting, into which the bolt&nut you see in the middle of the beams fit.
> > Looks like a tool left over from the Inquisition, doesn't it?
> > Bob
> >
> >
> > On Thu, 14 Jul 2005 15:05:11 -0700 Max Heim <>
> > writes:
> >> I've never done this job (I have a banjo), but I'm gathering that the
> >> lack of 1/100th of an inch of space requires using a spreader tool?
> > Heck,
> >> I'd get out the grinder, too, in that situation. How did they ever let
> > that
> >> out of engineering? Good grief...
> >>
> >>
> >> --
> >>
> >> Max Heim
> >> '66 MGB GHN3L76149
> >> If you're near Mountain View, CA,
> >> it's the primer red one with chrome wires

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