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For what it's worth, I switched to the 9lb alloy flywheel on my TR3. =C2=A0=
I believe the stock one is 32 lbs. =C2=A0I don't notice any difference get=
ting started in 1st gear, and it does spin up nice and fast.=C2=A0=0A=0ARy=
e=0APH: 530-FIND-RYE=0A=0AOn Sep 10, 2018, at 06:26 AM, John Macartney <jo=
hn.macartney@ukpips.org.uk> wrote:=0A=0AI think I'm correct in saying one =
of the reasons for the heavier flywheel is=0Athat the wet liner four engin=
e was originally designed for the Standard=0AVanguard with a two speed (lo=
w and high) gearbox with overdrive and also the=0AFerguson tractor - both =
of which engines needed to develop shedloads of=0Atorque at very low engin=
e speeds. In both instances, much heavier flywheels=0Awere required. Even =
if the early TR's could have got away with lighter=0Aunits, that would hav=
e meant having two different units. In those early post=0AWW2 days, iron a=
nd steel in the UK was in such short supply that having a=0A'common' flywh=
eel across the range made economic sense from a production=0Acost viewpoin=
t. Just an opinion=0A=0AJonmac=0A=0A-----Original Message-----=0AFrom: Tri=
umphs <triumphs-bounces@autox.team.net> On Behalf Of=0Ajpaynepbr@cox.net=0A=
Sent: 23 July 2018 00:38=0ATo: 'TERRY SMITH' <terryrs@comcast.net>; Randal=
l <tr3driver@ca.rr.com>;=0AAndrew Uprichard <auprichard@uprichard.net>; Ge=
orge Haynes=0A<ghaynestr4@aol.com>; triumphs@autox.team.net=0ASubject: Re:=
[TR] Electric Fans: Something Different=0A=0AI believe the TR2/3/4 was mo=
re or less "balanced" internally. The flywheel=0Aweighs about 3x what it n=
eeds to. I believe they used the flywheel to=0Asmooth it out.=0A=0AJonas P=
ayne=0APBR Consulting Services, LLC=0A702.882.6711=0A=0A=0A=0A** triumphs@=
autox.team.net **=0A=0ADonate: http://www.team.net/donate.html=0AArchive: =
ribe/Manage:=0Ahttp://autox.team.net/mailman/options/triumphs/john.macartn=
ey@ukpips.org.uk=0A=0A=0A---=0AThis email has been checked for viruses by =
Avast antivirus software.=0Ahttps://www.avast.com/antivirus=0A=0A** triump=
hs@autox.team.net **=0A=0ADonate: http://www.team.net/donate.html=0AArchiv=
e: http://www.team.net/pipermail/triumphs http://www.team.net/archive=0A=0A=
c.com=0A
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<html><body><div>For what it's worth, I switched to the 9lb alloy flywheel on
my TR3. =
I believe the stock one is 32 lbs. I don't notice any differen=
ce getting started in 1st gear, and it does spin up nice and fast. </=
div><div><br data-mce-bogus=3D"1"></div><div class=3D"x-apple-signature">R=
ye<br>PH: 530-FIND-RYE</div><div><br>On Sep 10, 2018, at 06:26 AM, John Ma=
cartney <john.macartney@ukpips.org.uk> wrote:<br><br></div><div><blo=
ckquote type=3D"cite"><div class=3D"msg-quote"><div class=3D"_stretch"><sp=
an class=3D"body-text-content">I think I'm correct in saying one of the re=
asons for the heavier flywheel is<br>that the wet liner four engine was or=
iginally designed for the Standard<br>Vanguard with a two speed (low and h=
igh) gearbox with overdrive and also the<br>Ferguson tractor - both of whi=
ch engines needed to develop shedloads of<br>torque at very low engine spe=
eds. In both instances, much heavier flywheels<br>were required. Even if t=
he early TR's could have got away with lighter<br>units, that would have m=
eant having two different units. In those early post<br>WW2 days, iron and=
steel in the UK was in such short supply that having a<br>'common' flywhe=
el across the range made economic sense from a production<br>cost viewpoin=
t. Just an opinion<br><br>Jonmac<br><br>-----Original Message-----<br>From=
: Triumphs <triumphs-bounces@autox.team.net> On Behalf Of<br><a href=
=3D"mailto:jpaynepbr@cox.net"; data-mce-href=3D"mailto:jpaynepbr@cox.net";>j=
paynepbr@cox.net</a><br>Sent: 23 July 2018 00:38<br>To: 'TERRY SMITH' <=
terryrs@comcast.net>; Randall <tr3driver@ca.rr.com>;<br>Andrew Up=
richard <auprichard@uprichard.net>; George Haynes<br><ghaynestr4@=
aol.com>; <a href=3D"mailto:triumphs@autox.team.net"; data-mce-href=3D"m=
ailto:triumphs@autox.team.net">triumphs@autox.team.net</a><br>Subject: Re:=
[TR] Electric Fans: Something Different<br><br>I believe the TR2/3/4 was =
more or less "balanced" internally. The flywheel<br>weighs about 3x what i=
t needs to. I believe they used the flywheel to<br>smooth it out.<br><br>J=
onas Payne<br>PBR Consulting Services, LLC<br>702.882.6711<br><br><br><br>=
** <a href=3D"mailto:triumphs@autox.team.net"; data-mce-href=3D"mailto:triu=
mphs@autox.team.net">triumphs@autox.team.net</a> **<br><br>Donate: <a href=
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