[Healeys] 100S modifications

[Alan Seigrist]

Yes, Actually if I recall correctly the distributor on a standard 100 runs
of this same gear, but because it's on the wrong side it reaches across the
crank to connect, that's why the distributor drive shaft is so long on the
100.

On Wed, Oct 19, 2011 at 8:59 AM, Michael Salter <
msalter at precisionsportscar.com> wrote:

> Hi Gary,
> I'll try to answer your questions.
> I'm not an expert on casting techniques but. as far as I can figure, to
> make
> the 100S block the pattern for the deck of the block was changed with
> repositioned bosses for the studs and incidentally more material where the
> generator would eventually mount.
> Moving the distributor to the other side of the block was necessitated by
> the manifolds which were located on the right side of the 100S head.
> The actual process of moving the distributor was not too difficult because
> there is already a 1/2 engine speed quill shaft over there which is used to
> drive the tachometer in the original 100 configuration. All they had to do
> was cast up a special pedestal, incorporating a tachometer drive (just like
> the one used on the pre BJ8 6 cylinder cars)  and bolt it on.
>
> Michael Salter
>
> On Tue, Oct 18, 2011 at 4:31 PM, Tadeusz Malkiewicz <
> tadeusz.malkiewicz at gmail.com> wrote:
>
> > DW makes the heads, but there could be others..
> >
> > http://www.bighealey.co.uk/content/100s-aluminium-cylinder-heads
> >
> > Kilmartin brothers do the chassis parts to a great level of detail..
> >
> > At this point, a good replica is probably a matter of $$$$$.. :-)
> >
> > BR, Tadek
> >
> > -----Original Message-----
> > From: healeys-bounces at autox.team.net [mailto:
> > healeys-bounces at autox.team.net]
> > On Behalf Of warthodson at aol.com
> > Sent: Tuesday, 18 October 2011 12:34 PM
> > To: austin.healey at gmail.com
> > Cc: healeys at autox.team.net
> > Subject: Re: [Healeys] 100S modifications (was Distributor cap
> > orientation-details)
> >
> > Mike's article is very interesting, but I am not sure it answers my
> > original
> > question. Let me restate it. It is my understanding that the 100S engine
> > used a 100 engine block. Was the 100S engine based on using use a 100
> > engine
> > block casting (before it had been machined) and then machining it to 100S
> > specifications or was it based on using an already machine 100 engine
> block
> > & modifying it where necesssary? Also, how did they move the distributor
> > from one side to the other side? I cannot picture how the distrbutor
> would
> > be mounted on the side of the block not originally intended for the
> > distributor.
> > Also, how was the distributor driven? Finally, based on Mike's article,
> > what
> > did the factory deal with  moving the head studs for the 100S engine?
> > Gary Hodson
> >
> >
> > ------------------------------
> >
> > _
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