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Terry=20
https://www.widman.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" <fot@autox.team.net>=20
Aan: "fot" <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 <fot-bounces@autox.team.net> on behalf of van.mulders.marcel--- v=
ia Fot <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
fot@autox.team.net=20
http://www.fot-racing.com=20
Archive: http://www.team.net/pipermail/fot=20
arcel@telenet.be=20
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f; font-size: 10pt; color: #000000"><div><style><!--
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--></style></div><div>Terry</div><div><br data-mce-bogus=3D"1"></div><div>h=
ttps://www.widman.biz/mini_pics/classic-mini-oil.pdf <br></div><div>Th=
e adress above is an interesting article about engine/gearbox oil for class=
ic mini's. The conclusion of the author is that it's all about the right ch=
oice : 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 think=
) just like most bike gearboxes. Classic Mini's have frequently gearbox pro=
blems, maybe part of these can be avoided with the right oil. But most bike=
s are not particulary weak in the gearbox area, so I think it is worth look=
ing for a right oil to try in an overdrive gearbox. My car is accelerating =
fast, inclusive 4th gear, but when overdrive is engaged, rpm is climbing sl=
owly. 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" data-marker=3D"__DIVIDER__"><div data-marker=3D"__HEADERS__"><b>=
Van: </b>"fot" <fot@autox.team.net><br><b>Aan: </b>"fot" <fot@auto=
x.team.net><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><d=
iv><br></div><div data-marker=3D"__QUOTED_TEXT__">
<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 face=3D"Calibri, sans-serif" da=
ta-mce-style=3D"font-size: 11pt; color: #000000; font-family: Calibri, sans=
-serif;" style=3D"font-size: 11pt; color: #000000; font-family: Calibri, sa=
ns-serif;" color=3D"#000000"><b>From:</b> Fot <fot-bounces@autox.team.ne=
t> on behalf of van.mulders.marcel--- via Fot <fot@autox.team.net>=
<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>fot@autox.team.net<b=
r><br>http://www.fot-racing.com<br><br>Donate: http://www.team.net/donate.h=
tml<br>Archive: http://www.team.net/pipermail/fot<br>Unsubscribe/Manage: ht=
tp://autox.team.net/mailman/options/fot/van.mulders.marcel@telenet.be<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
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