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<DIV>Yes you can install a light flywheel or a 6 cylinder flywheel in BN1
with a 3 speed. But you CAN NOT use the later 6 cylinder style clutch
cover. The cover will hit the bell housing and stop the engine from
turning. ‘</DIV>
<DIV> </DIV>
<DIV>The best answer is to use the 3 speed cover on the light flywheel.</DIV>
<DIV> </DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: #000000">David
Nock<BR>British Car
Specialists<BR>209-948-8767<BR>www.britishcarspecialists.com</DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=michael.oritt@gmail.com
href="mailto:michael.oritt@gmail.com">Michael Oritt</A> </DIV>
<DIV><B>Sent:</B> Tuesday, January 08, 2019 4:37 AM</DIV>
<DIV><B>To:</B> <A title=bspidell@comcast.net
href="mailto:bspidell@comcast.net">Bob Spidell</A> </DIV>
<DIV><B>Cc:</B> <A title=healeys@autox.team.net
href="mailto:healeys@autox.team.net">healeys@autox.team.net</A> </DIV>
<DIV><B>Subject:</B> Re: [Healeys] Lightweight Flywheel</DIV></DIV></DIV>
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<DIV class=gmail_default style="COLOR: #3333ff">I have a DW lightened flywheel
as well as an hydraulically activated BJ8 diaphragm clutch on my BN1. It
is a great setup and the clutch's operation is extremely smooth and light.
However, all of this lives within a Smitty's bell housing so I cannot speak to
if and how this would function within a stock housing. BTW I modified an
early six-cylinder Moss fiberglass transmission tunnel that mates with the
original fixed rear tunnel section and fabricated a new bulkhead piece.</DIV>
<DIV class=gmail_default style="COLOR: #3333ff"> </DIV>
<DIV class=gmail_default style="COLOR: #3333ff">Best--Michael Oritt</DIV></DIV>
<DIV> </DIV>
<DIV class=gmail_quote>
<DIV dir=ltr>On Tue, Jan 8, 2019 at 1:11 AM Bob Spidell <<A
href="mailto:bspidell@comcast.net">bspidell@comcast.net</A>> wrote:<BR></DIV>
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<P>Does this conversion retain the BN1/2's mechanical clutch?</P>
<DIV class=gmail-m_-2375546770219136501moz-cite-prefix>On 1/6/2019 1:01 PM,
Curtis Arndt wrote:<BR></DIV>
<BLOCKQUOTE type="cite">
<DIV dir=ltr>Regarding lightening flywheels on a BN2, the best
solutions I've heard of comes from Bruce Phillips at "Healey Surgeons" in
Maryland, and is something he did on his BN2 decades ago with great
success. Substitute the stock 100 flywheel for one from a BJ8... This
accomplishes several things, first, it greatly reduces the weight without
having to compromise an original flywheel (plus it's an original Austin
Healey part), and secondly allows the use of the superior BJ8 diaphragm
clutch. Bruce and others who've tried this swear by the
conversion.
<DIV> </DIV>
<DIV>Supposedly, it does not work too well with a BN1 transmission since
according to Bruce, the setup requires that the BN1 transmission bell
housing be modified, i.e., material ground away for clearance? I have
not been able confirm this, but fellow Concours member and performance
expert John Hodgman told me he didn't think there would be a problem, and
was investigating whether or not it could work on his BN1. </DIV>
<DIV> </DIV>
<DIV>Comments?</DIV>
<DIV> </DIV>
<DIV>Cheers,</DIV>
<DIV> </DIV>
<DIV>Curt</DIV></DIV>
<DIV> </DIV>
<DIV class=gmail_quote>
<DIV dir=ltr>On Sat, Jan 5, 2019 at 6:13 PM <<A
href="mailto:glemon@neb.rr.com" target=_blank>glemon@neb.rr.com</A>>
wrote:<BR></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">I
had my flywheel lightened by a local machine shop. It was done in
conjunction with an engine rebuild to M spec, so it was hard to evaluate
the effect on performance. However I can say there were no I'll
effects as far as idle or clutch/take off operation with the lightened
flywheel.<BR><BR>Greg Lemon<BR>Former BN1 owner<BR><BR>---- WILLIAM B
LAWRENCE <<A href="mailto:ynotink@msn.com"
target=_blank>ynotink@msn.com</A>> wrote: <BR>> I have a lightened
flywheel in my BN1 (26 pounds as opposed to 42) and I've used it for over
13 years with no known ill effects. The engine has been out for an
unrelated failure and the crank checked out crack free. I use the car for
highway cruising and around town and I don't spend much time above about
3200 RPM. I have Mike Lempert's 3.54:1 gears (hypoid final drive) and the
28% overdrive which gives an 80 MPH cruise at around that RPM. No land
speed records, but no speeding tickets either...<BR>> <BR>> Bill
Lawrence<BR>> BN1 #554<BR>> ________________________________<BR>>
From: Healeys <<A href="mailto:healeys-bounces@autox.team.net"
target=_blank>healeys-bounces@autox.team.net</A>> on behalf of Michael
Salter <<A href="mailto:michael.salter@gmail.com"
target=_blank>michael.salter@gmail.com</A>><BR>> Sent: Friday,
January 4, 2019 1:03 AM<BR>> To: Charlie Schott<BR>> Cc: <A
href="mailto:healeys@autox.team.net"
target=_blank>healeys@autox.team.net</A><BR>> Subject: Re: [Healeys]
Lightweight Flywheel<BR>> <BR>> Read this first<BR>> <A
href="http://www.netbug.net/blogmichael/2017/01/03/austin-healey-100-crank-failures/"
rel=noreferrer
target=_blank>http://www.netbug.net/blogmichael/2017/01/03/austin-healey-100-crank-failures/</A><BR>>
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