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Probably AMSOIL 20/50 V twin and Mobile 1 5W can be tried in an O/D dogbox =
: both seem to have very good shear properties. I found that the Mobile 1 5=
W exists in several grades, including 5W 50. Maybe the thinner viscosities =
will find escape ways out of a TR box! xW - 50 engine oil is thicker than 7=
5W-90 gear oil, but probably the TR gearbox will not keep the thinner grade=
s like 5W - 30.=20
Marcel=20
Van: "John Hasty" <jhasty@mhc-law.com>=20
Aan: "van mulders marcel" <van.mulders.marcel@telenet.be>=20
Cc: "Terry Stetler" <tlizzard@msn.com>, "fot" <fot@autox.team.net>=20
Verzonden: Zondag 16 december 2018 23:47:49=20
Onderwerp: Re: [Fot] bike engine oil for overdrive gearbox?=20
We used Mobile 1 SAE 5 in our TZ 250 A 1990 AMA championship bike=20
Sent from my iPhone=20
On Dec 16, 2018, at 5:19 PM, van.mulders.marcel--- via Fot < [ mailto:fot@a=
utox.team.net | fot@autox.team.net ] > wrote:=20
Terry=20
[ https://www.widman.biz/mini_pics/classic-mini-oil.pdf | https://www.widma=
n.biz/mini_pics/classic-mini-oil.pdf ]=20
The adress above is an interesting article about engine/gearbox oil for cla=
ssic mini's. The conclusion of the author is that it's all about the right =
choice : engine oils that have the shear stability for the gears do exist. =
I've a dogbox, so it has straight cut gears (with less sliding action I thi=
nk) just like most bike gearboxes. Classic Mini's have frequently gearbox p=
roblems, maybe part of these can be avoided with the right oil. But most bi=
kes are not particulary weak in the gearbox area, so I think it is worth lo=
oking for a right oil to try in an overdrive gearbox. My car is acceleratin=
g fast, inclusive 4th gear, but when overdrive is engaged, rpm is climbing =
slowly. I've mounted a 25% overdrive now instead of a 28% so far : that wil=
l make things a little better, but I'm still trying to find ways to make th=
e overdrive less power sapping.=20
Marcel=20
Van: "fot" < [ mailto:fot@autox.team.net | fot@autox.team.net ] >=20
Aan: "fot" < [ mailto:fot@autox.team.net | fot@autox.team.net ] >=20
Verzonden: Zondag 16 december 2018 19:01:54=20
Onderwerp: Re: [Fot] bike engine oil for overdrive gearbox?=20
The OD shares it=E2=80=99s oil with the transmission. I=E2=80=99d really wo=
rry about transmission life with engine oil as it=E2=80=99s lubricant. Engi=
ne oil does not have the shear stability that gear oils do.=20
One of the worst features of the classic Mini is the fact that it shares it=
=E2=80=99s engine oil with the gearbox.=20
Terry Stetler=20
Sent from [ https://go.microsoft.com/fwlink/?LinkId=3D550986 |=20
Mail ] for Windows 10=20
From: Fot < [ mailto:fot-bounces@autox.team.net | fot-bounces@autox.team.ne=
t ] > on behalf of van.mulders.marcel--- via Fot < [ mailto:fot@autox.team.=
net | fot@autox.team.net ] >=20
Sent: Sunday, December 16, 2018 11:08:41 AM=20
To: fot=20
Subject: [Fot] bike engine oil for overdrive gearbox?=20
Like most TR racers I believe that an overdrive gearbox is worth some lapti=
me on most racetracks. But there are some drawbacks :9.5kgs weight penalty =
and the gap between 4th gear and 4th overdrive gear is too big. There is al=
so a considerable amount of power loss when the overdrive is engaged becaus=
e of the friction in the overdrive gears : but I think that in general mode=
rn engine oil can reduce the friction in the overdrive, compared to GL-4 ge=
ar oil, because it has much better friction modifiers. But are these fricti=
on modifiers compatible with the clutch in the overdrive?? Classic Mini's a=
nd most bikes have 1 oil pan for both engine and gearbox : what about using=
a modern bike oil or a modern (synthetic) classic mini oil in an overdrive=
gearbox to reduce the friction in the overdrive and gain some acceleration=
when 4th overdrive gear is engaged?=20
Marcel=20
_______________________________________________=20
[ mailto:fot@autox.team.net | fot@autox.team.net ]=20
[ http://www.fot-racing.com/ | http://www.fot-racing.com ]=20
]=20
Archive: [ http://www.team.net/pipermail/fot | http://www.team.net/pipermai=
l/fot ]=20
.marcel@telenet.be |=20
http://autox.team.net/mailman/options/fot/van.mulders.marcel@telenet.be ]=
=20
BQ_BEGIN
_______________________________________________=20
[ mailto:fot@autox.team.net | fot@autox.team.net ]=20
[ http://www.fot-racing.com/ | http://www.fot-racing.com ]=20
]=20
Archive: [ http://www.team.net/pipermail/fot | http://www.team.net/pipermai=
l/fot ]=20
law.com |=20
http://autox.team.net/mailman/options/fot/jhasty@mhc-law.com ]=20
BQ_END
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--></style></div><div>Probably AMSOIL 20/50 V twin and Mobile 1=
5W can be tried in an O/D dogbox : both seem to have very good shear prope=
rties. I found that the Mobile 1 5W exists in several grades, including 5W =
50. Maybe the thinner viscosities will find escape ways out of a TR box!&nb=
sp; xW - 50 engine oil is thicker than 75W-90 gear oil, but probably the TR=
gearbox will not keep the thinner grades like 5W - 30.</div><div>Marcel</d=
iv><div><br></div><hr id=3D"zwchr" data-marker=3D"__DIVIDER__"><div data-ma=
rker=3D"__HEADERS__"><b>Van: </b>"John Hasty" <jhasty@mhc-law.com><br=
><b>Aan: </b>"van mulders marcel" <van.mulders.marcel@telenet.be><br>=
<b>Cc: </b>"Terry Stetler" <tlizzard@msn.com>, "fot" <fot@autox.te=
am.net><br><b>Verzonden: </b>Zondag 16 december 2018 23:47:49<br><b>Onde=
rwerp: </b>Re: [Fot] bike engine oil for overdrive gearbox?<br></div><div><=
br></div><div data-marker=3D"__QUOTED_TEXT__">
We used Mobile 1 SAE 5 in our TZ 250 A 1990 AMA championship bike<br>
<br>
<div id=3D"AppleMailSignature" dir=3D"ltr">Sent from my iPhone</div>
<div dir=3D"ltr"><br>
On Dec 16, 2018, at 5:19 PM, van.mulders.marcel--- via Fot <<a href=3D"m=
ailto:fot@autox.team.net" target=3D"_blank">fot@autox.team.net</a>> wrot=
e:<br>
<br>
</div>
<blockquote>
<div dir=3D"ltr">
<div style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; font-size=
: 10pt; color: #000000">
<div></div>
<div>Terry</div>
<div><br>
</div>
<div><a href=3D"https://www.widman.biz/mini_pics/classic-mini-oil.pdf"; targ=
et=3D"_blank">https://www.widman.biz/mini_pics/classic-mini-oil.pdf</a>&nbs=
p;<br>
</div>
<div>The adress above is an interesting article about engine/gearbox oil fo=
r classic mini's. The conclusion of the author is that it's all about the r=
ight choice : engine oils that have the shear stability for the gears do ex=
ist. I've a dogbox, so it has straight
cut gears (with less sliding action I think) just like most bike gearboxes=
. Classic Mini's have frequently gearbox problems, maybe part of these can =
be avoided with the right oil. But most bikes are not particulary weak in t=
he gearbox area, so I think it is
worth looking for a right oil to try in an overdrive gearbox. My car is ac=
celerating fast, inclusive 4th gear, but when overdrive is engaged, rpm is =
climbing slowly. I've mounted a 25% overdrive now instead of a 28% so far :=
that will make things a little
better, but I'm still trying to find ways to make the overdrive less power=
sapping.</div>
<div>Marcel</div>
<div><br>
</div>
<hr id=3D"zwchr">
<div><b>Van: </b>"fot" <<a href=3D"mailto:fot@autox.team.net"; target=3D"=
_blank">fot@autox.team.net</a>><br>
<b>Aan: </b>"fot" <<a href=3D"mailto:fot@autox.team.net"; target=3D"_blan=
k">fot@autox.team.net</a>><br>
<b>Verzonden: </b>Zondag 16 december 2018 19:01:54<br>
<b>Onderwerp: </b>Re: [Fot] bike engine oil for overdrive gearbox?<br>
</div>
<div><br>
</div>
<div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal">The OD shares it=E2=80=99s oil with the transmission=
. I=E2=80=99d really worry about transmission life with engine =
oil as it=E2=80=99s lubricant. Engine oil does not have the shear sta=
bility that gear oils do.</p>
<p class=3D"MsoNormal">One of the worst features of the classic Mini is the=
fact that it shares it=E2=80=99s engine oil with the gearbox.</p>
<p class=3D"MsoNormal"> </p>
<p class=3D"MsoNormal">Terry Stetler</p>
<p class=3D"MsoNormal"> </p>
<p class=3D"MsoNormal">Sent from <a href=3D"https://go.microsoft.com/fwlink=
/?LinkId=3D550986" target=3D"_blank">
Mail</a> for Windows 10</p>
<p class=3D"MsoNormal"> </p>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><span style=3D"font-size: 11pt; color=
: #000000; font-family: Calibri, sans-serif;"><b>From:</b> Fot
<<a href=3D"mailto:fot-bounces@autox.team.net"; target=3D"_blank">fot-bo=
unces@autox.team.net</a>> on behalf of van.mulders.marcel--- via Fot <=
;<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.net=
</a>><br>
<b>Sent:</b> Sunday, December 16, 2018 11:08:41 AM<br>
<b>To:</b> fot<br>
<b>Subject:</b> [Fot] bike engine oil for overdrive gearbox?</span>
<div> </div>
</div>
<div>
<div style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; font-size=
: 10pt; color: #000000">
<div>Like most TR racers I believe that an overdrive gearbox is worth some =
laptime on most racetracks. But there are some drawbacks :9.5kgs weight pen=
alty and the gap between 4th gear and 4th overdrive gear is too big. There =
is also a considerable amount of
power loss when the overdrive is engaged because of the friction in the ov=
erdrive gears : but I think that in general modern engine oil can reduce th=
e friction in the overdrive, compared to GL-4 gear oil, because it has much=
better friction modifiers. But
are these friction modifiers compatible with the clutch in the overdrive??=
Classic Mini's and most bikes have 1 oil pan for both engine and gearbox :=
what about using a modern bike oil or a modern (synthetic) classic mini oi=
l in an overdrive gearbox to reduce
the friction in the overdrive and gain some acceleration when 4th overdriv=
e gear is engaged?</div>
<div>Marcel</div>
</div>
</div>
<br>
_______________________________________________<br>
<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.net<=
/a><br>
<br>
<a href=3D"http://www.fot-racing.com"; target=3D"_blank">http://www.fot-raci=
ng.com</a><br>
<br>
//www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/fot"; target=3D"_blank">ht=
tp://www.team.net/pipermail/fot</a><br>
n.mulders.marcel@telenet.be" target=3D"_blank">
http://autox.team.net/mailman/options/fot/van.mulders.marcel@telenet.be</a>=
<br>
</div>
</div>
</div>
</blockquote>
<blockquote>
<div dir=3D"ltr"><span>_______________________________________________</spa=
n><br>
<span><a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.tea=
m.net</a></span><br>
<span></span><br>
<span><a href=3D"http://www.fot-racing.com"; target=3D"_blank">http://www.fo=
t-racing.com</a></span><br>
<span></span><br>
<span>Donate: <a href=3D"http://www.team.net/donate.html"; target=3D"_blank"=
>http://www.team.net/donate.html</a></span><br>
<span>Archive: <a href=3D"http://www.team.net/pipermail/fot"; target=3D"_bla=
nk">http://www.team.net/pipermail/fot</a></span><br>
<span>Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman/options/=
fot/jhasty@mhc-law.com" target=3D"_blank">
http://autox.team.net/mailman/options/fot/jhasty@mhc-law.com</a></span><br>
<span></span><br>
<span></span><br>
</div>
</blockquote><br></div></div></body></html>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/pipermail/fot
--===============3742948791422940841==--
|