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Re: [Fot] IRS Diff Cover

To: <malaboge@aol.com>, <fot@autox.team.net>
Subject: Re: [Fot] IRS Diff Cover
From: "Peter Vucinic" <pvucinic@netspace.net.au>
Date: Thu, 11 Aug 2016 18:11:16 +1000
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <0605CF79-D1B9-45E0-B956-39E9D2C0BA46@netspace.net.au> <15672866b7c-2c0d-fcc2@webprd-m48.mail.aol.com>
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OK. So if your differential casing is THAT HOT to MELT/DAMAGE a POLY =
mount, purely from radiant heat, generated by the gear set/differential =
type? You are in trouble! Poly is good for around 230F. It means that =
you must be running internal temperature around 300F or greater!

=20

Synthetic fluid only and change regularly until you can fit an oil =
cooler.

=20

=20

From: malaboge@aol.com [mailto:malaboge@aol.com]=20
Sent: Wednesday, 10 August 2016 1:37 PM
To: pvucinic@netspace.net.au; fot@autox.team.net
Subject: Re: [Fot] IRS Diff Cover

=20

Nope, no chance of the exhaust...or anything else that might be hot back =
there. The heat looked like it came from the diff cover out to the poly =
bush. The bush was melted the most on the back edge where the cover had =
the biggest mass next to the bushing.
And this is with a Detroit locker, no heat building clutches inside!


-----Original Message-----
From: Peter Vucinic <pvucinic@netspace.net.au>
To: malaboge <malaboge@aol.com>
Sent: Tue, Aug 9, 2016 5:45 am
Subject: Re: [Fot] IRS Diff Cover

Wow! Melted poly mounts! Never seen that before! Sure it's not the =
exhaust systems proximity to the differential casing that's adding to =
the equation?

Regards

Peter Vucinic


On 9 Aug 2016, at 11:55 AM, malaboge@aol.com wrote:

Oh I'm so jealous of that finned alum diff cover!
BUT, a more practical question...do you think the most oil capacity, or =
directed internal oil dispersion is more important. (Already using =
RedLine heavy shock proof oil).
Some history...
The Duke of Oil, our 4A has melted a set of the poly mounts (see a =
previous pic someone else submitted...same deal here) in  a normal =
sprint race. So, diggin thru the pile-o-parts I find I have an early one =
piece TR6(?) diff cover that is pretty much a square reservoir in the =
back (the oil reservoir area looks about like the reservoir on the 2 =
piece 4A diff cover), and another later (?) one piece cover that directs =
the oil flingin around in the diff toward the ring gear and has more =
fins on it. However, the later more heavily finned unit holds about 8 =
ounces less fluid, but it directs the oil directly onto the gear and has =
those additional fins.=20

I would really like to skip the oil pump and cooler setup in the back of =
the car, but may have to go that way anyhow.

BUT,
Has anyone had any experience with running the later, smaller oil =
capacity but more finned and directed oil units? And how would it =
compare to the larger open chamber cover?

If not, who has installed a pump and cooler back there? What did you use =
for a cooler and where did you put the outlet and inlet on the =
diff...and why?

Usually in hot water myself...this time oil!

Nick in Nor Cal

_______________________________________________
fot@autox.team.net

http://www.fot-racing.com

Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/fot/pvucinic@netspace.net.au




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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>OK. So if your differential casing is THAT HOT to MELT/DAMAGE a POLY =
mount, purely from radiant heat, generated by the gear set/differential =
type? You are in trouble! Poly is good for around 230F. It means that =
you must be running internal temperature around 300F or =
greater!<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Synthetic fluid only and change regularly until you can fit an oil =
cooler.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'> <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal style=3D'margin-left:36.0pt'><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
malaboge@aol.com [mailto:malaboge@aol.com] <br><b>Sent:</b> Wednesday, =
10 August 2016 1:37 PM<br><b>To:</b> pvucinic@netspace.net.au; =
fot@autox.team.net<br><b>Subject:</b> Re: [Fot] IRS Diff =
Cover<o:p></o:p></span></p></div><p class=3DMsoNormal =
style=3D'margin-left:36.0pt'><o:p>&nbsp;</o:p></p><div><div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;mar=
gin-left:36.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>N=
ope, no chance of the exhaust...or anything else that might be hot back =
there. The heat looked like it came from the diff cover out to the poly =
bush. The bush was melted the most on the back edge where the cover had =
the biggest mass next to the bushing.<br>And this is with a Detroit =
locker, no heat building clutches inside!<br><br><br>-----Original =
Message-----<br>From: Peter Vucinic &lt;<a =
href=3D"mailto:pvucinic@netspace.net.au";>pvucinic@netspace.net.au</a>&gt;=
<br>To: malaboge &lt;<a =
href=3D"mailto:malaboge@aol.com";>malaboge@aol.com</a>&gt;<br>Sent: Tue, =
Aug 9, 2016 5:45 am<br>Subject: Re: [Fot] IRS Diff =
Cover<o:p></o:p></span></p></div><div =
id=3D"AOLMsgPart_2_c1cd206c-8102-4239-8de1-7431b3b8f0ca"><div><div><p =
class=3DMsoNormal style=3D'margin-left:36.0pt'><span =
style=3D'font-size:14.0pt;font-family:"Comic Sans MS";color:black'>Wow! =
Melted poly mounts! Never seen that before! Sure it's not the exhaust =
systems proximity to the differential casing that's adding to the =
equation?<br><br>Regards<o:p></o:p></span></p><div><p class=3DMsoNormal =
style=3D'margin-left:36.0pt'><span =
style=3D'font-size:14.0pt;font-family:"Comic Sans MS";color:black'>Peter =
Vucinic<o:p></o:p></span></p></div></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:14.0pt;mar=
gin-left:36.0pt'><span style=3D'font-size:14.0pt;font-family:"Comic Sans =
MS";color:black'><br>On 9 Aug 2016, at 11:55 AM, <a =
href=3D"mailto:malaboge@aol.com"; target=3D"_blank">malaboge@aol.com</a> =
wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><div><p =
class=3DMsoNormal style=3D'margin-left:36.0pt'><span =
style=3D'font-size:14.0pt;font-family:"Comic Sans MS";color:black'>Oh =
I'm so jealous of that finned alum diff cover!<br>BUT, a more practical =
question...do you think the most oil capacity, or directed internal oil =
dispersion is more important. (Already using RedLine heavy shock proof =
oil).<br>Some history...<br>The Duke of Oil, our 4A has melted a set of =
the poly mounts (see a previous pic someone else submitted...same deal =
here) in&nbsp; a normal sprint race. So, diggin thru the pile-o-parts I =
find I have an early one piece TR6(?) diff cover that is pretty much a =
square reservoir in the back (the oil reservoir area looks about like =
the reservoir on the 2 piece 4A diff cover), and another later (?) one =
piece cover that directs the oil flingin around in the diff toward the =
ring gear and has more fins on it. However, the later more heavily =
finned unit holds about 8 ounces less fluid, but it directs the oil =
directly onto the gear and has those additional fins. <br><br>I would =
really like to skip the oil pump and cooler setup in the back of the =
car, but may have to go that way anyhow.<br><br>BUT,<br>Has anyone had =
any experience with running the later, smaller oil capacity but more =
finned and directed oil units? And how would it compare to the larger =
open chamber cover?<br><br>If not, who has installed a pump and cooler =
back there? What did you use for a cooler and where did you put the =
outlet and inlet on the diff...and why?<br><br>Usually in hot water =
myself...this time oil!<br><br>Nick in Nor =
Cal<o:p></o:p></span></p></div></div></blockquote><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:14.0pt;mar=
gin-left:36.0pt'><span style=3D'font-size:14.0pt;font-family:"Comic Sans =
MS";color:black'>_______________________________________________<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-racing.com</a><br><br>Donate: <a =
href=3D"http://www.team.net/donate.html"; =
target=3D"_blank">http://www.team.net/donate.html</a><br>Archive: <a =
href=3D"http://www.team.net/archive"; =
target=3D"_blank">http://www.team.net/archive</a><br>Forums: <a =
href=3D"http://www.team.net/forums"; =
target=3D"_blank">http://www.team.net/forums</a><br>Unsubscribe/Manage: =
<a =
href=3D"http://autox.team.net/mailman/options/fot/pvucinic@netspace.net.a=
u" =
target=3D"_blank">http://autox.team.net/mailman/options/fot/pvucinic@nets=
pace.net.au</a><br><br><o:p></o:p></span></p></div></blockquote></div></d=
iv></div></div></body></html>
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_______________________________________________
fot@autox.team.net

http://www.fot-racing.com

Archive: http://www.team.net/archive



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