--===============2876443078839741706==
boundary="----=_Part_8322223_1934595958.1635619471701"
------=_Part_8322223_1934595958.1635619471701
Content-Transfer-Encoding: quoted-printable
Is there a need for one? Never needed one on my 100.
=20
=20
=20
-----Original-Nachricht-----
Betreff: Re: [Healeys] Crankshaft
Datum: 2021-10-30T20:34:14+0200
Von: "Bob Spidell via Healeys" <healeys@autox.team.net>
An: "gradea1@charter.net" <gradea1@charter.net>
=20
=20
=20
=20
Begs the question: Anyone make an aftermarket balancer for the 100s?=20
Without looking, I think there=E2=80=99s enough room for one.
On Oct 30, 2021, at 10:17 AM, Henry G Leach via Healeys
<healeys@autox.team.net> wrote:
The "weakness" in the original 100, A-90 crankshaft was the lack of a
harmonic balancer, coupled with a huge heavy flywheel. More than
likely, the crank that was sought after for replacement, had cracks
near the rear main area where it vibrated itself to death. A case for
not revving the engine over 4000 rpms. (Donald Healey set strict orders
for all his racers to keep the revs down).
=20
They (BMC) fixed all that, or should I say Morris Motors, fixed it by
adding the harmonic balancer to the early 100-6 engine. Too bad they
lost points in other areas, but by the time the 2912cc engine was
developed, they did in fact fix all that...best six made! Hank
=20
-----------------------------------------
From: "David Porter via Healeys" <healeys@autox.team.net>
To: "Michael MacLean", "healeys@autox.team.net"
Cc:
Sent: Saturday October 30 2021 4:20:15AM
Subject: Re: [Healeys] Crankshaft
Don't over think this. Just because it will rev much better doesn't
mean it gets used all the time, but it's there. Of course the addition
of other lighter bits and an AL head and expensive harmonic balancer
will have you at a greater expense. Speed costs money, how fast do you
want to go?. The AH four makes excellent bottom end torque. The huge
main caps handle it just fine. The original crank is the weak link. DP
On October 30, 2021, at 3:22 AM, Michael MacLean via Healeys
<healeys@autox.team.net> wrote:
Wouldn't you have to beef up the main caps and add straps across them
to handle the crank in higher RPM? Just a thought with only 3 main
bearings and no harmonic balancer.
Mike MacLean
On Fri, Oct 29, 2021 at 8:48 PM WILLIAM B LAWRENCE via Healeys <
healeys@autox.team.net> wrote:
I=E2=80=99d say it doesn=E2=80=99t transform the engine by itself, bu=
t it provides a
stronger basis for the other mods that will.
=20
Bill Lawrence
BN1 #554
------------------------------------------------------------------
From: Healeys <healeys-bounces@autox.team.net> on behalf of Bob
Spidell via Healeys <healeys@autox.team.net>
Sent: Saturday, October 30, 2021 1:16 AM
To: richard mayor <boyracer466@gmail.com>
Cc: healeys@autox.team.net <healeys@autox.team.net>
Subject: Re: [Healeys] Crankshaft
=20
=20
Does it de-stroke the engine (shorter throws)?
=20
On Oct 29, 2021, at 5:05 PM, richard mayor via Healeys <
healeys@autox.team.net> wrote:
But a lightened flywheel will get you there quicker.
On Fri, Oct 29, 2021 at 3:19 PM Michael Salter via Healeys <
healeys@autox.team.net> wrote:
David, how does changing the crankshaft give you 2000
additional RPM?
Lighter rods and pistons, balancing, cam timing, bigger valves,
porting, bigger carbs, shorter stroke, even increased
compression may all contribute to higher RPM but a crank alone
will not make any difference, neither will a lightened
flywheel.=20
M
On Fri., Oct. 29, 2021, 6:03 p.m. David P via Healeys, <
healeys@autox.team.net> wrote:
lighter, stronger, 2000+ additional rpms ,add a wee bit of
cam and its a stormer and looks dead stock.. add a real seal
and go have some fun. As I said IMHO.. It ain't cheap. dp I
understand one is going on BAT in the near future. Black over
red..
On 10/29/2021 3:25 PM, Michael Salter via Healeys wrote:
Confirmation bias is a very powerful force.
=20
M
On Fri., Oct. 29, 2021, 3:35 p.m. Bob Spidell via
Healeys, <healeys@autox.team.net> wrote:
OK, I'll bite: How does a Welch crank transform a a
100? I get that
they're steel and stronger, and should withstand more
RPM/HP, but does
the crank alone do it?
Bob
On 10/29/2021 8:10 AM, David P via Healeys wrote:
>
> pretty much hen's teeth is my guess. But a Welsh
crank, it transforms
> the engine. IMHO I'm sure Donald wishes they were
available in '54
>
> On 10/28/2021 2:29 PM, Robert Memler via Healeys
wrote:
>> I need a crankshaft for a 54 b;no. Does anyone have
a spare that they
>> would be willing to sell?
>>
>> Thanks, Bob Memler
>>
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=EF=BB=BF
------=_Part_8322223_1934595958.1635619471701
Content-Transfer-Encoding: quoted-printable
<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=
=3DUTF-8"/><title></title></head><body><p style=3D"margin: 0px;"><span styl=
e=3D"font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;te=
xt-decoration:none">Is there a need for one? Never needed one on my 100.<br=
/></span></p>
<p style=3D"margin: 0px;"><span style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:10pt;color:#000000;text-decoration:none"> </span></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;">-----Original-Nachricht-----</p>
<p style=3D"margin: 0px;">Betreff: Re: [Healeys] Crankshaft</p>
<p style=3D"margin: 0px;">Datum: 2021-10-30T20:34:14+0200</p>
<p style=3D"margin: 0px;">Von: "Bob Spidell via Healeys" <healeys@autox.=
team.net></p>
<p style=3D"margin: 0px;">An: "gradea1@charter.net" <gradea1@charter.net=
></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<div>
<div dir=3D"ltr"> </div>
<div dir=3D"ltr">Begs the question: Anyone make an aftermarket balancer for=
the 100s? Without looking, I think there’s enough room for one.</div=
>
<div dir=3D"ltr"><br />
<blockquote>On Oct 30, 2021, at 10:17 AM, Henry G Leach via Healeys <hea=
leys@autox.team.net> wrote:<br /><br /></blockquote>
</div>
<blockquote>
<div dir=3D"ltr">The "weakness" in the original 100, A-90 crankshaft was th=
e lack of a harmonic balancer, coupled with a huge heavy flywheel. Mo=
re than likely, the crank that was sought after for replacement, had cracks=
near the rear main area where it vibrated itself to death. A case for not =
revving the engine over 4000 rpms. (Donald Healey set strict orders for all=
his racers to keep the revs down).
<div> </div>
<div>They (BMC) fixed all that, or should I say Morris Motors, fixed it by =
adding the harmonic balancer to the early 100-6 engine. Too bad they =
lost points in other areas, but by the time the 2912cc engine was developed=
, they did in fact fix all that...best six made! Hank<br /><br />
<div class=3D"reply-new-signature"> </div>
<p style=3D"margin: 0px;">-----------------------------------------</p>
From: "David Porter via Healeys" <healeys@autox.team.net><br />To: "M=
ichael MacLean", "healeys@autox.team.net"<br />Cc: <br />Sent: Saturday Oct=
ober 30 2021 4:20:15AM<br />Subject: Re: [Healeys] Crankshaft<br /><br />
<p dir=3D"ltr" style=3D"margin: 0px;"><span style=3D"font-family: Calibri;"=
>Don't over think this. Just because it will rev much better doesn't mean i=
t gets used all the time, but it's there. Of course the addition of other l=
ighter bits and an AL head and expensive harmonic balancer will have you at=
a greater expense. Speed costs money, how fast do you want to go?. The AH =
four makes excellent bottom end torque. The huge main caps handle it just f=
ine. The original crank is the weak link. DP</span></p>
<span style=3D"font-family: Calibri;"><br /><br />On October 30, 2021, at 3=
:22 AM, Michael MacLean via Healeys <healeys@autox.team.net> wrote:<b=
r /><br /><br /></span>
<div dir=3D"ltr">
<div>Wouldn't you have to beef up the main caps and add straps across them =
to handle the crank in higher RPM? Just a thought with only 3 main be=
arings and no harmonic balancer.</div>
<div>Mike MacLean</div>
</div>
<br />
<div class=3D"gmail_quote">
<div class=3D"gmail_attr" dir=3D"ltr">On Fri, Oct 29, 2021 at 8:48 PM WILLI=
AM B LAWRENCE via Healeys <<a>healeys@autox.team.net</a>> wrote:</div=
>
<blockquote class=3D"gmail_quote" style=3D"margin: 0px 0px 0px .8ex; border=
-left: 1px solid #cccccc; padding-left: 1ex;">
<div>
<div>I’d say it doesn’t transform the engine by itself, but it =
provides a stronger basis for the other mods that will.</div>
<div> </div>
<div>Bill Lawrence</div>
<div>BN1 #554</div>
<hr style=3D"width: 98%;" />
<div dir=3D"ltr"><span style=3D"font-size: 11pt; color: #000000; font-famil=
y: Calibri, sans-serif;"><strong>From:</strong> Healeys <<a>healeys-boun=
ces@autox.team.net</a>> on behalf of Bob Spidell via Healeys <<a>heal=
eys@autox.team.net</a>><br /><strong>Sent:</strong> Saturday, October 30=
, 2021 1:16 AM<br /><strong>To:</strong> richard mayor <<a>boyracer466@g=
mail.com</a>><br /><strong>Cc:</strong> <a>healeys@autox.team.net</a> &l=
t;<a>healeys@autox.team.net</a>><br /><strong>Subject:</strong> Re: [Hea=
leys] Crankshaft</span>
<div> </div>
</div>
<div>
<div dir=3D"ltr"> </div>
<div dir=3D"ltr">Does it de-stroke the engine (shorter throws)?</div>
<div dir=3D"ltr"> </div>
<div dir=3D"ltr"><br />
<blockquote>On Oct 29, 2021, at 5:05 PM, richard mayor via Healeys <<a>h=
ealeys@autox.team.net</a>> wrote:<br /><br /></blockquote>
</div>
<blockquote>
<div dir=3D"ltr">
<div dir=3D"ltr">But a lightened flywheel will get you there quicker.</div>
<br />
<div>
<div dir=3D"ltr">On Fri, Oct 29, 2021 at 3:19 PM Michael Salter via Healeys=
<<a>healeys@autox.team.net</a>> wrote:</div>
<blockquote style=3D"margin: 0px 0px 0px .8ex; border-left: 1px solid #cccc=
cc; padding-left: 1ex;">
<div>David, how does changing the crankshaft give you 2000 additional RPM?
<div>Lighter rods and pistons, balancing, cam timing, bigger valves, portin=
g, bigger carbs, shorter stroke, even increased compression may all c=
ontribute to higher RPM but a crank alone will not make any difference, nei=
ther will a lightened flywheel. </div>
<div>M</div>
</div>
<br />
<div>
<div dir=3D"ltr">On Fri., Oct. 29, 2021, 6:03 p.m. David P via Healeys, <=
;<a>healeys@autox.team.net</a>> wrote:</div>
<blockquote style=3D"margin: 0px 0px 0px .8ex; border-left: 1px solid #cccc=
cc; padding-left: 1ex;">
<div>
<p style=3D"margin: 0px;">lighter, stronger, 2000+ additional rpms ,add a w=
ee bit of cam and its a stormer and looks dead stock.. add a real seal and =
go have some fun. As I said IMHO.. It ain't cheap. dp I underst=
and one is going on BAT in the near future. Black over red..</p>
<div>On 10/29/2021 3:25 PM, Michael Salter via Healeys wrote:</div>
<blockquote>
<div>Confirmation bias is a very powerful force.
<div> </div>
<div>M</div>
</div>
<br />
<div>
<div dir=3D"ltr">On Fri., Oct. 29, 2021, 3:35 p.m. Bob Spidell via Healeys,=
<<a>healeys@autox.team.net</a>> wrote:</div>
<blockquote style=3D"margin: 0px 0px 0px .8ex; border-left: 1px solid #cccc=
cc; padding-left: 1ex;">OK, I'll bite: How does a Welch crank transform a a=
100? I get that<br />they're steel and stronger, and should withstand more=
RPM/HP, but does<br />the crank alone do it?<br /><br />Bob<br /><br />On =
10/29/2021 8:10 AM, David P via Healeys wrote:<br />><br />> pretty m=
uch hen's teeth is my guess. But a Welsh crank, it transforms<br />> the=
engine. IMHO I'm sure Donald wishes they were available in '54<br />=
><br />> On 10/28/2021 2:29 PM, Robert Memler via Healeys wrote:<br /=
>>> I need a crankshaft for a 54 b;no. Does anyone have a spare that =
they<br />>> would be willing to sell?<br />>><br />>> Th=
anks, Bob Memler<br />>><br /><br />_________________________________=
______________<br />Support <a href=3D"http://Team.Net";>Team.Net</a> <a hre=
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