[Healeys] remountinbg rear bearing

[warthodson at aol.com]

According to the parts book there was only one spacer available, (not several
thicknesses to choose from). In my limited experience (four rear axle
rebuilds) the bearing & spacer always have resulted in them being about .004"
to .006" proud of the flange surface, not including the gasket. To achieve the
.001" minimum specified in the manual would require a gasket of about .003"
thickness, which I believe was typical of the original gaskets. However, the
currently available gaskets that I have received from Moss & Victoria British
are more like .012" plus or minus. The new gaskets do make good templates for
making your own gasket using regular paper which is about .003"-.004" thick.
The only challenge in making a gasket for this application is getting the
holes for the studs in the correct locations. Hole punches are the only
special tool required unless you consider a pair of scissors a special tool.
Gary Hodson





-----Original Message-----
From: Bob Spidell <bspidell at comcast.net>
To: BJ8 Healeys <sbyers at ec.rr.com>
Cc: healeys at autox.team.net
Sent: Tue, May 31, 2011 9:38 am
Subject: Re: [Healeys] remountinbg rear bearing


These instructions have always cornfused me. If the bearing is pressed against
the "... abutment shoulder in the hub ..." there won't be much adjustment
possible (unless you have a press strong enough to compress the hardened steel
bearing race, and distort it). The only way to adjust the 'protrusion' would
be to use differing width spacers. I've always interpreted this as 'make sure
the spacer is at least a slight bit above the face of the hub.' If it isn't,
you probably have an ill-fitting bearing.

Or am I missing something?

Bob

On 5/31/2011 6:43 AM, BJ8 Healeys wrote:
> The shop manual says: "When re-assembling [the bearing hub] it is essential
> that the outer face of the bearing spacer should protrude from .001 in.
> (.025 mm.) to .004 in. (.1 mm.) beyond the outer face of the hub and the
> paper washer, when the bearing is pressed into position. This ensures that
> the bearing is gripped between the abutment shoulder in the hub and the
> driving flange of the axle shaft."
>
> I achieved this measurement by using two 0.003 front wheel bearing shims
> equally spaced around the flange of the hub housing with the bearing spacer
> on top of the bearing, and the paper gasket in place. Using a metal bar
> spanning across the bearing spacer, I tapped on the bar to press in the
> bearing and spacer until the bar was seated on the shims on each side.
>
> Steve Byers
> HBJ8L/36666 > BJ8 Registry
> Havelock, NC USA
>
>

-- *******************************************************************
Bob Spidell San Jose, CA bspidell at comcast.net

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