<div dir="ltr">do they make a lighter flywheel?  What about Aluminum?<div>Paul</div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Sep 10, 2018 at 9:30 AM John Macartney <<a href="mailto:john.macartney@ukpips.org.uk">john.macartney@ukpips.org.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I think I'm correct in saying one of the reasons for the heavier flywheel is<br>
that the wet liner four engine was originally designed for the Standard<br>
Vanguard with a two speed (low and high) gearbox with overdrive and also the<br>
Ferguson tractor - both of which engines needed to develop shedloads of<br>
torque at very low engine speeds. In both instances, much heavier flywheels<br>
were required. Even if the early TR's could have got away with lighter<br>
units, that would have meant 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' flywheel across the range made economic sense from a production<br>
cost viewpoint. Just an opinion<br>
<br>
Jonmac<br>
<br>
-----Original Message-----<br>
From: Triumphs <<a href="mailto:triumphs-bounces@autox.team.net" target="_blank">triumphs-bounces@autox.team.net</a>> On Behalf Of<br>
<a href="mailto:jpaynepbr@cox.net" target="_blank">jpaynepbr@cox.net</a><br>
Sent: 23 July 2018 00:38<br>
To: 'TERRY SMITH' <<a href="mailto:terryrs@comcast.net" target="_blank">terryrs@comcast.net</a>>; Randall <<a href="mailto:tr3driver@ca.rr.com" target="_blank">tr3driver@ca.rr.com</a>>;<br>
Andrew Uprichard <<a href="mailto:auprichard@uprichard.net" target="_blank">auprichard@uprichard.net</a>>; George Haynes<br>
<<a href="mailto:ghaynestr4@aol.com" target="_blank">ghaynestr4@aol.com</a>>; <a href="mailto:triumphs@autox.team.net" target="_blank">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 it needs to.  I believe they used the flywheel to<br>
smooth it out.<br>
<br>
Jonas Payne<br>
PBR Consulting Services, LLC<br>
702.882.6711<br>
<br>
<br>
<br>
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