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Gents, when heats becomes a problem then you should definitely try the =
Lucas oils. Measure temperatures before and after the change, the =
difference is usually quite big !
=20
De : Fot [mailto:fot-bounces@autox.team.net] De la part de fubog1 via =
Fot
Envoy=C3=A9 : mercredi 10 ao=C3=BBt 2022 19:25
=C3=80 : fot@autox.team.net
Cc : fot@autox.team.net
Objet : Re: [Fot] Final drive (differential) oil
=20
Bob you bring up another good point as well, there's a big difference =
between a 20 minute sprint race & an enduro, the heat is a much bigger =
consideration...
=20
Glen Efinger
=20
=20
-----Original Message-----
From: Bob Kramer Gmail via Fot <fot@autox.team.net>
To: fubog1 <fubog1@aol.com>
Cc: fot@autox.team.net
Sent: Wed, Aug 10, 2022 11:51 am
Subject: Re: [Fot] Final drive (differential) oil
Good point Glen. Welding up the center section makes the soft yellow =
metal cone washers moot. =20
=20
I=E2=80=99ve found EP90 GL4 from Car Quest (available from Advance) as a =
good substitute for StaLube GL4, but it overheats and failed us in =
endurance racing. It has always worked in the shorter vintage race, and =
is cheap enough the drain and refill often.=20
=20
Sent from my iPhone
On Aug 10, 2022, at 10:03 AM, fubog1 via Fot <fot@autox.team.net> wrote:
=EF=BB=BF=20
Welded rear gears aren't that fussy about lube, any good hypoid gear oil =
should be OK;
I usually use 80-90 Valvo in them.
The metal in the sample is a different story, they normally don't "make" =
any metal in operation.
You'll have to remove the cover & get a visual on things, check the =
lash, mesh pattern & preloads best possible in situ.
=20
Glen Efinger
=20
=20
-----Original Message-----
From: Philip Gott via Fot <fot@autox.team.net>
To: Friends Of Triumph <fot@autox.team.net>
Sent: Tue, Aug 9, 2022 9:53 pm
Subject: [Fot] Final drive (differential) oil
Amici:
At the risk of opening Pandora=E2=80=99s box, May I ask what gear oil =
you would recommend for the rear end in my TR4A (solid axle)? I am =
running Mobil 1 75-140 and found some metal flakes on my magnetic filler =
plug after Pitt Race. Usually there are some whiskers, but the metal =
flakes are concerning. The rear end is a welded diff carrying a =
relatively new (3 seasons) 4.1 gear set. I have yet to pull the cover. =
Backlash seems =E2=80=9Cnormal.=E2=80=9D The rear end was set up by =
Quantum Mechanics whom I trust.
What do you all run for oil (brand and viscosity) and what is your =
experience?
Thanks and regards,
Phil
=20
Sent from my iPhone
_______________________________________________
fot@autox.team.net
=20
http://www.fot-racing.com <http://www.fot-racing.com/>=20
=20
Archive: http://autox.team.net/archive <http://autox.team.net/archive> =
http://www.team.net/pipermail/fot
http://autox.team.net/mailman/options/fot/fubog1@aol.com
=20
=20
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
http://autox.team.net/mailman/options/fot/rkramer56@gmail.com
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com <http://www.fot-racing.com/>=20
Archive: http://autox.team.net/archive <http://autox.team.net/archive> =
http://www.team.net/pipermail/fot
http://autox.team.net/mailman/options/fot/fubog1@aol.com
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</o:shapelayout></xml><![endif]--></head><body lang=3DFR-CH link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-family:"Garamond","serif";color:#44546A'>Gents, when heats =
becomes a problem then you should definitely try the Lucas oils. Measure =
temperatures before and after the change, the difference is usually =
quite big !<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Garamond","serif";color:#44546A'><o:p> </o:p><=
/span></p><p class=3DMsoNormal><b><span lang=3DFR =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De :</s=
pan></b><span lang=3DFR =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Fot =
[mailto:fot-bounces@autox.team.net] <b>De la part de</b> fubog1 via =
Fot<br><b>Envoy=C3=A9 :</b> mercredi 10 ao=C3=BBt 2022 =
19:25<br><b>=C3=80 :</b> fot@autox.team.net<br><b>Cc :</b> =
fot@autox.team.net<br><b>Objet :</b> Re: [Fot] Final drive =
(differential) oil<o:p></o:p></span></p><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>B=
ob you bring up another good point as well, there's a big difference =
between a 20 minute sprint race & an enduro, the heat is a much =
bigger consideration...<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>G=
len Efinger<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>-=
----Original Message-----<br>From: Bob Kramer Gmail via Fot =
<fot@autox.team.net><br>To: fubog1 <fubog1@aol.com><br>Cc: =
fot@autox.team.net<br>Sent: Wed, Aug 10, 2022 11:51 am<br>Subject: Re: =
[Fot] Final drive (differential) oil<o:p></o:p></span></p><div =
id=3Dyiv4865240387><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>G=
ood point Glen. Welding up the center section makes the soft yellow =
metal cone washers moot. <o:p></o:p></span></p><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>I=
=E2=80=99ve found EP90 GL4 from Car Quest (available from Advance) as a =
good substitute for StaLube GL4, but it overheats and failed us in =
endurance racing. It has always worked in the shorter vintage =
race, and is cheap enough the drain and refill =
often. <o:p></o:p></span></p><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>S=
ent from my iPhone<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
br><br><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>O=
n Aug 10, 2022, at 10:03 AM, fubog1 via Fot <fot@autox.team.net> =
wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>=EF=
=BB=BF <o:p></o:p></span></p><div =
id=3Dyiv4865240387yqt05668><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>W=
elded rear gears aren't that fussy about lube, any good hypoid gear oil =
should be OK;<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>I=
usually use 80-90 Valvo in them.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>T=
he metal in the sample is a different story, they normally don't =
"make" any metal in =
operation.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Y=
ou'll have to remove the cover & get a visual on things, check the =
lash, mesh pattern & preloads best possible in =
situ.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>G=
len Efinger<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>-=
----Original Message-----<br>From: Philip Gott via Fot =
<fot@autox.team.net><br>To: Friends Of Triumph =
<fot@autox.team.net><br>Sent: Tue, Aug 9, 2022 9:53 pm<br>Subject: =
[Fot] Final drive (differential) oil<o:p></o:p></span></p><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>A=
mici:<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>A=
t the risk of opening Pandora=E2=80=99s box, May I ask what gear oil you =
would recommend for the rear end in my TR4A (solid axle)? I am running =
Mobil 1 75-140 and found some metal flakes on my magnetic filler plug =
after Pitt Race. Usually there are some whiskers, but the metal flakes =
are concerning. The rear end is a welded diff carrying a relatively new =
(3 seasons) 4.1 gear set. I have yet to pull the cover. Backlash =
seems =E2=80=9Cnormal.=E2=80=9D The rear end was set up by Quantum =
Mechanics whom I trust.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>W=
hat do you all run for oil (brand and viscosity) and what is your =
experience?<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>T=
hanks and regards,<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>P=
hil<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
o:p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>S=
ent from my iPhone<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>_=
______________________________________________<o:p></o:p></span></p></div=
><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><=
a href=3D"mailto:fot@autox.team.net"; =
target=3D"_blank">fot@autox.team.net</a><o:p></o:p></span></p></div><div>=
<p class=3DMsoNormal><span =
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v><div><p class=3DMsoNormal><span =
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style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>D=
onate: <a href=3D"http://www.team.net/donate.html"; =
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p></div><div><p class=3DMsoNormal><span =
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target=3D"_blank">http://www.team.net/pipermail/fot</a><o:p></o:p></span>=
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style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>U=
nsubscribe/Manage: <a =
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m</a><o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
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style=3D'margin-bottom:12.0pt'><span =
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______________________________________________<br>fot@autox.team.net<br><=
br>http://www.fot-racing.com<br><br>Donate: =
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http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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