[Healeys] Wheel lightening on 100

[Thomas Willig]

Hi Tadek,

as said before the lightening of the standard 100 flywheel is the way to go.
If necessary I can send you a picture of my lighned flywheel. Let me know.

The lightening is a very straightforward job, any machine shop can do that. My
only advise is to balance all the individual components of an engine
separately. That means, apart from the crank and balancer, first the "shaved"
flywheel should be balanced alone, then the clutch cover should be fitted and
the balancing repeated, if necessary only "meat" from the clutch cover, not
the flywheel, has to be removed. Doing it that way, you can chance components
(like a new damper or race flywheel etc. etc.) at a later time without
disturbing the balance of the whole assembly. Of course all newly added
components have to be balanced separately before assembly. I did this
individual balancing on another non-Healey engine, and the result is a very
pleasant running engine.


Best regards


Thomas Willig


-----Urspr|ngliche Nachricht-----
Von: Mr. Bill [mailto:bn1 at pacbell.net]
Gesendet: Donnerstag, 5. November 2009 23:35
An: Tadeusz Malkiewicz
Cc: healeys at autox.team.net
Betreff: Re: [Healeys] Wheel lightening on 100

Tadek,

I bought mine from Bill Bolton in Cresswell, OR.   tricarb at aol.com   You
can buy them either outright or exchange.  It weighs 23 lbs. and has run
fine for 30,000+ miles.  The lightness causes no problem with the idle.
I run it with the 3-speed and the mechanical clutch.

Bill
'53 Red Car ;-)

Tadeusz Malkiewicz wrote:
> Well,
>
>
>
> Is there anyone than that can tell me precisely where to shave it?.. I
> assume it might be easier than finding a BJ8 wheel, especially that it
might
> not quite fit the mechanical clutch..
>
>
>
> BTW, what's the advantage of the BJ8 clutch?
>
>
>
> Tadek
>
>
>
>   _____
>
> From: Alan Seigrist [mailto:healey.nut at gmail.com]
> Sent: Thursday, November 05, 2009 10:03 AM
> To: Tadeusz Malkiewicz
> Cc: healeys at autox.team.net
> Subject: Re: [Healeys] Wheel lightening on 100
>
>
>
> Tadek -
>
> At 45 lbs, there is no downside to lightening the flywheel.
>
> You need that mass if you a driving a truck or lorry, but for the little
> half aluminum 100, there is no need for all that mass.  It won't affect
your
> torque hardly at all, and your revs will be much punchier.
>
> In addition you'll have less rotating mass which will make your car more
> stable and handle much better through the turns and panic stops.  There is
> almost no downside.  If you are putting a DW head on your 100, you should
> put a lighter flywheel.  I like the idea of the BJ8 clutch too... good
idea.
> Wish I could put it on my BN1.
>
> Alan
>
> '52 A90
> '53 BN1
> '59 Jag Mk IX
> '64 BJ8
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