Thanks Mike for redeeming my faith in the Healey gear boxes, somewhat
anyway. I will now retrieve some of the gears that I have previously cast
aside into the DOA box. I have several of the gears that you have
mentioned and really thought they were NFG, (not fery good) and was going
to use them for a tutorial trany for our club or friends.
Also you mentioned the pads that were positioned in the bellhousing and
the O/D plate to cushion the selector forks. I wasn't aware that there was
one in the O/D plate, was this for all versions of the 6 cylinder tranys?
FWIW, I tried shifting when I had my trany on the bench, with and without
the pad in the bell housing and it really does keep the selector rods and
forks from moving too far into the other gears. So needless to say they do
serve a rather important purpose and I'm surprised that they aren't
mentioned more often in rebuild procedures. And I'm also surprised that
there hasn't been one of these pads in place in any of the 5 boxes that I
have taken apart.
Where do they go?
I'm curious what material members have used for these pads. I personally
used a couple of pieces of sticky back vinyl flooring that is easily cut and
should stand up to the impact for quite sometime.(fingers crossed)
Mark
----- Original Message -----
From: "Michael Salter" <msalter@precisionsportscar.com>
To: <dicksonr@uwm.edu>
Cc: "'Tracy Drummond'" <bighealey@charter.net>; <healeys@autox.team.net>
Sent: Monday, April 12, 2004 7:42 AM
Subject: RE: You be the judge Photos and Chipped gears? How much is bad?
> Hi Randy,
> In my experience small chips out of the teeth have little effect on the
> operation of the gears themselves. The removed chips however can be
> devastating for the laygear bearings which is why I like to add an
> additional magnet into a Healey gearbox.
> As far as serviceability of gear teeth is concerned you need to look
> very carefully at the thrust faces of the gears to try to determine if
> the gear profile is correct. The profile is the cross sectional shape of
> the tooth. Often gears will wear in such a way that they develop a divot
> or hollow on what was originally a curved gear face. If this has
> occurred the gears really should not be used as they will both be noisy
> and will probably cause their mating gear to wear rapidly.
> That said however if I was building an "economy" Healey gearbox for my
> own use I would be fairly tolerant of the 1st gear condition because I
> never use 1st gear and the only time that that gear gets any use is in
> reverse.
>
> Michael Salter
> www.precisionsportscar.com
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