[Healeys] Advice and guidance needed for OD reinstallation

[Michael Salter]

Bob, some years ago I was asked to resolve a "jumping out of 4th gear on
overrun" issue in a late BJ8 gearbox and discovered that the shims for both
the 1st and 3rd shaft bearings were missing entirely however there was also
some wear on the internal teeth on both sides of the 3/4 coupling sleeve.
I replaced the coupling sleeve and the shims on both bearings which
resolved the problem.
My conclusion was that the missing shims were the primary cause of the
problem and that the wear on the sleeve was caused by the axial movement of
the shaft(s) ; however that was supposition on my part and I would love to
hear more about this subject.

M

On Thu, Aug 28, 2025 at 10:39 AM Bob Spidell via Healeys <
healeys at autox.team.net> wrote:

> When I read this I thought "OMG, I didn't put these in when I did a
> gearbox/OD rebuild a few years ago, is that what causes the notorious
> jumping-out-of-fourth problem?!" So I checked my parts catalog--aka the
> Moss catalog--and didn't see them listed in the OD sections, but I did find
> them in the 'Internal gearbox, 4 speed' section showing the mainshaft
> assembly as 'plate, spring bearing' and 'plate, bearing,' but only for the
> pre-BJ8 cars on the front of the gearbox (by the first motion shaft). So,
> did I miss something, as I don't recall ever seeing them in the OD adapter
> in 2 rebuilds (the catalog doesn't show them)?
>
> For the BJ8, the catalog shows 2 available shim sizes, in lieu of the
> bellville washer and 'plate,' I presume, but I installed DWM's 'uprated'
> shim and had to have the bellhousing machined appropriately.
>
>
> https://www.bighealey.co.uk/index.php?route=product/product_grouped&product_id=34295
>
> Bob
>
> On 8/27/2025 1:30 PM, Michael Salter wrote:
>
> Those "rings" are the Bellville washer and shim that go into the adaptor
> plate to eliminate end float of the mainshaft bearing.
>
>
>
>
> ------------------------------
> *From:* Healeys <healeys-bounces at autox.team.net>
> <healeys-bounces at autox.team.net> on behalf of Leonard Berkowitz via
> Healeys <healeys at autox.team.net> <healeys at autox.team.net>
> *Sent:* Wednesday, August 27, 2025 3:50:01 PM
> *To:* healeys at autox.team.net <healeys at autox.team.net>
> <healeys at autox.team.net>
> *Subject:* [Healeys] Advice and guidance needed for OD reinstallation
>
> Hi. All
> I finally figured out how to get the OD out of my BJ7. Now for getting the
> new one installed. I found two rings sitting on the output shaft which I
> believe are fitted to the adapter plate. (See pics attached). The problem
> is going to be how to keep them in place while maneuvering the new OD into
> place. I was thinking of using either white lithium grease or wheel bearing
> grease.
> Any suggestions?
> Thank you in advance for any help you can offer.
>
> Len Berkowitz
>
>
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