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Re: [TR] Flat Towing a TR6

To: "johnniedonnelly@gmail.com" <johnniedonnelly@gmail.com>, "triumphstag@gmail.com" <triumphstag@gmail.com>
Subject: Re: [TR] Flat Towing a TR6
From: DAVID MASSEY <dave1massey@cs.com>
Date: Wed, 7 Jul 2021 11:37:07 +0000 (UTC)
Cc: "triumphs@autox.team.net" <triumphs@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <20201123025430.BD3E9A0A47@autox.team.net> <a1eca401-81aa-f3e1-b715-c1bd823d8ab3@bradakis.com> <29C0B690-2866-4AED-9556-DEDF9CE3726F@hxcore.ol> <000001d6c1cb$6cda8370$468f8a50$@cox.net> <CANLCLaHZMQ4NK-fHrCV2aBGyJiuNngxp5or0HDq-DhNv2Ha-tg@mail.gmail.com> <CAC_63yXZf-3HP47Y=hr6CgzL3N-QmA=HPMFzGBxvZq1f3t-iHg@mail.gmail.com>
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 I flat towed a TR6 50 miles.=C2=A0 Within a year the transmission was maki=
ng ominous noises of galled mainshaft bushings.=C2=A0 But others have made =
reports of no issues.
Quick question: did your transmission have overdrive?=C2=A0 I have a workin=
g theory that transmissions with overdrive survive much better because the =
moving drive shaft will rotate the planetary gear assembly which is partial=
ly submerged in oil.=C2=A0 The rotating planetary gear assembly will distri=
bute oil about the OD case and some, enough, finds its way into the main ge=
arset lubricating the mainshaft bushings.=C2=A0 Non-overdrive transmissions=
 have no such feature and the bushings go dry.
I know nothing about the Toyota box but I suspect it is more like the non-O=
D Triumph unit.

=20
Dave=20

=20
=20
-----Original Message-----
From: Johnnie Donnelly <johnniedonnelly@gmail.com>
To: Sujit Roy <triumphstag@gmail.com>
Cc: Triumphs <triumphs@autox.team.net>
Sent: Tue, Jul 6, 2021 9:22 pm
Subject: Re: [TR] Flat Towing a TR6

Many many moons ago, the oil pump shaft broke rendering the engine useless.=
 Decided to get a tow dolly and pull it 500 miles to home. That was in 1972=
. The tranny still functioned perfectly 40 years later before being replace=
d by a HVDA toyota. So there's two issues here; is flat towing really a pro=
blem?=C2=A0 =C2=A0and .... can a Toyota conversion be flat towed?
Johnnie
On Mon, Nov 23, 2020 at 9:46 PM Sujit Roy <triumphstag@gmail.com> wrote:

That's a great demo. My son asked me how a gearbox worked and I told him wh=
y didnt he ask me a few months earlier.=C2=A0 I had a Triumph Stag box apar=
t and just pit back the top cover
On Mon, Nov 23, 2020, 11:12 AM <jpaynepbr@cox.net> wrote:

That is really cool.=C2=A0 Good show!=C2=A0=C2=A0From: Triumphs <triumphs-b=
ounces@autox.team.net> On Behalf Of Dean
Sent: Monday, November 23, 2020 10:44 AM
To: Mark J Bradakis <mark@bradakis.com>; triumphs@autox.team.net
Subject: Re: [TR] Flat Towing a TR6=C2=A0I built a cut away transmission to=
 show people how a transmission works =C2=A0and always showed them how the =
oil level was below The main gears and if they don=E2=80=99t turn they don=
=E2=80=99t bring up the oil.=C2=A0Dean Tetterton=C2=A0=C2=A0The black line =
shows the oil level. By turning the output flange you can see gears sitting=
 still and not pulling up the oil.=C2=A0=C2=A0By turning the knob on the cl=
utch disc you can operate the gears.=C2=A0=C2=A0You can also shift all the =
gears while it is turning. =C2=A0Sent from Mail for Windows 10=C2=A0From: M=
ark J Bradakis
Sent: Monday, November 23, 2020 11:40 AM
To: triumphs@autox.team.net
Subject: Re: [TR] Flat Towing a TR6=C2=A0On 11/22/20 7:50 PM, dave wrote:> =
But if you are flat towing the car, the transmission gears are moving.=C2=
=A0=C2=A0Actually the gears are NOT moving.=C2=A0 Just the mainshaft is tur=
ning, in unlubricated bearings and syncro bushings.=C2=A0mjb.=C2=A0=C2=A0**=
 triumphs@autox.team.net **=C2=A0Donate: http://www.team.net/donate.htmlArc=
hive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/arch=
ive=C2=A0Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs=
/tr3a58dean@gmail.com=C2=A0** triumphs@autox.team.net **

Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/a=
rchive

tag@gmail.com

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onnelly@gmail.com

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sey@cs.com

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<div style=3D"color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size=3D"3">I flat towed a TR6 50 miles.&nbsp; Within a year the=
 transmission was making ominous noises of galled mainshaft bushings.&nbsp;=
 But others have made reports of no issues.</font></div>

<div><font size=3D"3"><br>
</font></div>

<div><font size=3D"3">Quick question: did your transmission have overdrive?=
&nbsp; I have a working theory that transmissions with overdrive survive mu=
ch better because the moving drive shaft will rotate the planetary gear ass=
embly which is partially submerged in oil.&nbsp; The rotating planetary gea=
r assembly will distribute oil about the OD case and some, enough, finds it=
s way into the main gearset lubricating the mainshaft bushings.&nbsp; Non-o=
verdrive transmissions have no such feature and the bushings go dry.</font>=
</div>

<div><font size=3D"3"><br>
</font></div>

<div><font size=3D"3">I know nothing about the Toyota box but I suspect it =
is more like the non-OD Triumph unit.<br>
</font></div>

<div><font size=3D"3"></font><br>
</div>

<div> <br>
</div>

<div style=3D"clear:both"><font size=3D"4">Dave </font><br>
<br>
</div>

<div> <br>
</div>

<div> <br>
</div>

<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black"><font=
 size=3D"2">-----Original Message-----<br>
From: Johnnie Donnelly &lt;johnniedonnelly@gmail.com&gt;<br>
To: Sujit Roy &lt;triumphstag@gmail.com&gt;<br>
Cc: Triumphs &lt;triumphs@autox.team.net&gt;<br>
Sent: Tue, Jul 6, 2021 9:22 pm<br>
Subject: Re: [TR] Flat Towing a TR6<br>
<br>

<div id=3D"yiv0982776650">
<div dir=3D"ltr">
<div class=3D"yiv0982776650gmail_default" style=3D"font-size:small;">Many m=
any moons ago, the oil pump shaft broke rendering the engine useless. Decid=
ed to get a tow dolly and pull it 500 miles to home. That was in 1972. The =
tranny still functioned perfectly 40 years later before being replaced by a=
 HVDA toyota. So there's two issues here; is flat towing really a problem?&=
nbsp; &nbsp;and .... can a Toyota conversion be flat towed?</div>

<div class=3D"yiv0982776650gmail_default" style=3D"font-size:small;"><br>
</div>

<div class=3D"yiv0982776650gmail_default" style=3D"font-size:small;">Johnni=
e</div>
</div>
<br>

<div class=3D"yiv0982776650gmail_quote">
<div dir=3D"ltr" class=3D"yiv0982776650gmail_attr">On Mon, Nov 23, 2020 at =
9:46 PM Sujit Roy &lt;<a rel=3D"nofollow noopener noreferrer" ymailto=3D"ma=
ilto:triumphstag@gmail.com" target=3D"_blank" href=3D"mailto:triumphstag@gm=
ail.com">triumphstag@gmail.com</a>&gt; wrote:<br>
</div>
<blockquote class=3D"yiv0982776650gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;">
<div>That's a great demo. My son asked me how a gearbox worked and I told h=
im why didnt he ask me a few months earlier.&nbsp; I had a Triumph Stag box=
 apart and just pit back the top cover</div>
<br>

<div class=3D"yiv0982776650gmail_quote">
<div dir=3D"ltr" class=3D"yiv0982776650gmail_attr">On Mon, Nov 23, 2020, 11=
:12 AM  &lt;<a rel=3D"nofollow noopener noreferrer" ymailto=3D"mailto:jpayn=
epbr@cox.net" target=3D"_blank" href=3D"mailto:jpaynepbr@cox.net";>jpaynepbr=
@cox.net</a>&gt; wrote:<br>
</div>
<blockquote class=3D"yiv0982776650gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;">
<div style=3D"" lang=3D"EN-US">
<div>
<div class=3D"yiv0982776650MsoNormal">That is really cool.&nbsp; Good show!=
<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0in 0in;">
<div class=3D"yiv0982776650MsoNormal"><b>From:</b> Triumphs &lt;<a rel=3D"n=
ofollow noopener noreferrer" ymailto=3D"mailto:triumphs-bounces@autox.team.=
net" target=3D"_blank" href=3D"mailto:triumphs-bounces@autox.team.net";>triu=
mphs-bounces@autox.team.net</a>&gt; <b>On Behalf Of </b>Dean<br>
<b>Sent:</b> Monday, November 23, 2020 10:44 AM<br>
<b>To:</b> Mark J Bradakis &lt;<a rel=3D"nofollow noopener noreferrer" ymai=
lto=3D"mailto:mark@bradakis.com"; target=3D"_blank" href=3D"mailto:mark@brad=
akis.com">mark@bradakis.com</a>&gt;; <a rel=3D"nofollow noopener noreferrer=
" ymailto=3D"mailto:triumphs@autox.team.net"; target=3D"_blank" href=3D"mail=
to:triumphs@autox.team.net">triumphs@autox.team.net</a><br>
<b>Subject:</b> Re: [TR] Flat Towing a TR6<u></u><u></u></div>
</div>
</div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal">I built a cut away transmission to sh=
ow people how a transmission works &nbsp;and always showed them how the oil=
 level was below <u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal">The main gears and if they don=E2=80=
=99t turn they don=E2=80=99t bring up the oil.<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal">Dean Tetterton<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><img style=3D"width:8.2604in;min-heig=
ht:5.5312in;" id=3D"yiv0982776650gmail-m_-8006370898837237141m_-70739974232=
45416296Picture_x0020_3" width=3D"793" height=3D"531"><u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal">The black line shows the oil level. B=
y turning the output flange you can see gears sitting still and not pulling=
 up the oil.<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><img style=3D"width:8.2604in;min-heig=
ht:5.5312in;" id=3D"yiv0982776650gmail-m_-8006370898837237141m_-70739974232=
45416296Picture_x0020_4" width=3D"793" height=3D"531"><u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal">By turning the knob on the clutch dis=
c you can operate the gears.<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><img style=3D"width:8.2604in;min-heig=
ht:5.5312in;" id=3D"yiv0982776650gmail-m_-8006370898837237141m_-70739974232=
45416296Picture_x0020_5" width=3D"793" height=3D"531"><u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal">You can also shift all the gears whil=
e it is turning. <u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal">Sent from <a rel=3D"nofollow noopener=
 noreferrer" target=3D"_blank" href=3D"https://go.microsoft.com/fwlink/?Lin=
kId=3D550986">Mail</a> for Windows 10<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0in 0in;">
<div class=3D"yiv0982776650MsoNormal"><b>From: </b><a rel=3D"nofollow noope=
ner noreferrer" ymailto=3D"mailto:mark@bradakis.com"; target=3D"_blank" href=
=3D"mailto:mark@bradakis.com";>Mark J Bradakis</a><br>
<b>Sent: </b>Monday, November 23, 2020 11:40 AM<br>
<b>To: </b><a rel=3D"nofollow noopener noreferrer" ymailto=3D"mailto:triump=
hs@autox.team.net" target=3D"_blank" href=3D"mailto:triumphs@autox.team.net=
">triumphs@autox.team.net</a><br>
<b>Subject: </b>Re: [TR] Flat Towing a TR6<u></u><u></u></div>
</div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal">On 11/22/20 7:50 PM, dave wrote:<u></=
u><u></u></div>

<div class=3D"yiv0982776650MsoNormal">&gt; But if you are flat towing the c=
ar, the transmission gears are moving.<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal">Actually the gears are NOT moving.&nb=
sp; Just the mainshaft is turning, in <u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal">unlubricated bearings and syncro bush=
ings.<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal">mjb.<u></u><u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

<div class=3D"yiv0982776650MsoNormal"><u></u>&nbsp;<u></u></div>

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