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Re: [Healeys] SAE 140 Use In Differential To Reduce Noise?

To: Michael Oritt <michael.oritt@gmail.com>, Doug Barker <douglas.barker@videotron.ca>
Subject: Re: [Healeys] SAE 140 Use In Differential To Reduce Noise?
From: john spaur <jmsdarch@sbcglobal.net>
Date: Thu, 24 Dec 2015 00:23:04 +0000 (UTC)
Cc: Austin Healey <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CAPTa0B7xvPitaAQsEPoV3TRtnb6z3YYV6u=nfq-GS1wPBcUkXg@mail.gmail.com>
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A long, long time ago, a friend of mine would use sawdust and banana peels.=
 I would not suggest you try this.
John
=20

    On Wednesday, December 23, 2015 2:11 PM, Michael Oritt <michael.oritt@g=
mail.com> wrote:
=20

 Graham--
Yes the bearings are splash-fed.=C2=A0 The weight of the oil will not affec=
t the lubrication to the bearings as the lower number is the same.=C2=A0 I =
doubt using oil with a higher upper number will have any beneficial effect.=
=C2=A0 Better to have the diff set up properly as others suggest though if =
you have been running the set for some time then the gears may already be w=
orn in to each other and you may not be able to have the R & P set reshimme=
d, etc.
Best--Michael Oritt


On Wed, Dec 23, 2015 at 2:02 PM, Doug Barker <douglas.barker@videotron.ca> =
wrote:

This goes way back but did anybody respond and if so what was the
conclusion?

-----Original Message-----
From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net=
]
On Behalf Of Graham Wilkie
Sent: Thursday, April 03, 2014 10:43 PM
To: healeys@autox.team.net
Subject: [Healeys] SAE 140 Use In Differential To Reduce Noise?

Hello All,

The differential on my 1966 BJ8 starts to whine once I have driven for
several miles, and everything has warmed up to normal operating temperature=
.
It only occurs during accelerator pedal movement down (under load). The
whining diminishes during coasting or deceleration.

The differential is filled with Penrite 80W 90 mineral gear oil. (Recently
changed).

I am considering replacing my differential gear oil with Penrite SAE 140
mineral gear oil. (Note no 'W' prefix; it is straight SAE 140). This produc=
t
claims it will reduce differential noise in older vehicles. I wonder if it
is suitable for our Healeys?

I seem to recall reading on the List that our rear wheel bearings are splas=
h
lubricated by differential oil, but cannot find any reference to that in my
workshop manual. Is that correct? I'm concerned that if that is the case,
will the SAE 140 be too viscous to splash lubricate the rear wheel bearings
effectively?

Would I be better of using a gear oil additive like Nulon G70 instead?

Any shared thoughts or suggestions would be greatly appreciated.

Thank you.

Regards, Graham Wilkie.
BJ8 Moruya NSW Australia.
_______________________________________________
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_______________________________________________
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Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys

ritt@gmail.com




_______________________________________________
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Healeys@autox.team.net
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sbcglobal.net



  
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<html><head></head><body><div style=3D"color:#000; background-color:#fff; f=
ont-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, =
sans-serif;font-size:16px"><div id=3D"yui_3_16_0_1_1450916437807_4708">A lo=
ng, long time ago, a friend of mine would use sawdust and banana peels. I w=
ould not suggest you try this.</div><div id=3D"yui_3_16_0_1_1450916437807_4=
731"><br></div><div id=3D"yui_3_16_0_1_1450916437807_4732">John<br></div><d=
iv id=3D"yui_3_16_0_1_1450916437807_4733"><span></span></div> <div class=3D=
"qtdSeparateBR"><br><br></div><div style=3D"display: block;" class=3D"yahoo=
_quoted"> <div style=3D"font-family: HelveticaNeue, Helvetica Neue, Helveti=
ca, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style=3D"font=
-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sa=
ns-serif; font-size: 16px;"> <div dir=3D"ltr"><font size=3D"2" face=3D"Aria=
l"> On Wednesday, December 23, 2015 2:11 PM, Michael Oritt &lt;michael.orit=
t@gmail.com&gt; wrote:<br></font></div>  <br><br> <div class=3D"y_msg_conta=
iner"><div id=3D"yiv1228093850"><div><div dir=3D"ltr"><div class=3D"yiv1228=
093850gmail_default" style=3D"color:#3333ff;">Graham--</div><div class=3D"y=
iv1228093850gmail_default" style=3D"color:#3333ff;"><br clear=3D"none"></di=
v><div class=3D"yiv1228093850gmail_default" style=3D"color:#3333ff;">Yes th=
e bearings are splash-fed.&nbsp; The weight of the oil will not affect the =
lubrication to the bearings as the lower number is the same.&nbsp; I doubt =
using oil with a higher upper number will have any beneficial effect.&nbsp;=
 Better to have the diff set up properly as others suggest though if you ha=
ve been running the set for some time then the gears may already be worn in=
 to each other and you may not be able to have the R &amp; P set reshimmed,=
 etc.</div><div class=3D"yiv1228093850gmail_default" style=3D"color:#3333ff=
;"><br clear=3D"none"></div><div class=3D"yiv1228093850gmail_default" style=
=3D"color:#3333ff;">Best--Michael Oritt</div><div class=3D"yiv1228093850gma=
il_default" style=3D"color:#3333ff;"><br clear=3D"none"></div><div class=3D=
"yiv1228093850gmail_default" style=3D"color:#3333ff;"><br clear=3D"none"></=
div></div><div class=3D"yiv1228093850gmail_extra"><br clear=3D"none"><div c=
lass=3D"yiv1228093850yqt1187686495" id=3D"yiv1228093850yqtfd21516"><div cla=
ss=3D"yiv1228093850gmail_quote">On Wed, Dec 23, 2015 at 2:02 PM, Doug Barke=
r <span dir=3D"ltr">&lt;<a rel=3D"nofollow" shape=3D"rect" ymailto=3D"mailt=
o:douglas.barker@videotron.ca" target=3D"_blank" href=3D"mailto:douglas.bar=
ker@videotron.ca">douglas.barker@videotron.ca</a>&gt;</span> wrote:<br clea=
r=3D"none"><blockquote class=3D"yiv1228093850gmail_quote" style=3D"margin:0=
 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">This goes way back =
but did anybody respond and if so what was the<br clear=3D"none">
conclusion?<br clear=3D"none">
<br clear=3D"none">
-----Original Message-----<br clear=3D"none">
From: <a rel=3D"nofollow" shape=3D"rect" ymailto=3D"mailto:healeys-bounces@=
autox.team.net" target=3D"_blank" href=3D"mailto:healeys-bounces@autox.team=
.net">healeys-bounces@autox.team.net</a> [mailto:<a rel=3D"nofollow" shape=
=3D"rect" ymailto=3D"mailto:healeys-bounces@autox.team.net"; target=3D"_blan=
k" href=3D"mailto:healeys-bounces@autox.team.net";>healeys-bounces@autox.tea=
m.net</a>]<br clear=3D"none">
On Behalf Of Graham Wilkie<br clear=3D"none">
Sent: Thursday, April 03, 2014 10:43 PM<br clear=3D"none">
To: <a rel=3D"nofollow" shape=3D"rect" ymailto=3D"mailto:healeys@autox.team=
.net" target=3D"_blank" href=3D"mailto:healeys@autox.team.net";>healeys@auto=
x.team.net</a><br clear=3D"none">
Subject: [Healeys] SAE 140 Use In Differential To Reduce Noise?<br clear=3D=
"none">
<br clear=3D"none">
Hello All,<br clear=3D"none">
<br clear=3D"none">
The differential on my 1966 BJ8 starts to whine once I have driven for<br c=
lear=3D"none">
several miles, and everything has warmed up to normal operating temperature=
.<br clear=3D"none">
It only occurs during accelerator pedal movement down (under load). The<br =
clear=3D"none">
whining diminishes during coasting or deceleration.<br clear=3D"none">
<br clear=3D"none">
The differential is filled with Penrite 80W 90 mineral gear oil. (Recently<=
br clear=3D"none">
changed).<br clear=3D"none">
<br clear=3D"none">
I am considering replacing my differential gear oil with Penrite SAE 140<br=
 clear=3D"none">
mineral gear oil. (Note no 'W' prefix; it is straight SAE 140). This produc=
t<br clear=3D"none">
claims it will reduce differential noise in older vehicles. I wonder if it<=
br clear=3D"none">
is suitable for our Healeys?<br clear=3D"none">
<br clear=3D"none">
I seem to recall reading on the List that our rear wheel bearings are splas=
h<br clear=3D"none">
lubricated by differential oil, but cannot find any reference to that in my=
<br clear=3D"none">
workshop manual. Is that correct? I'm concerned that if that is the case,<b=
r clear=3D"none">
will the SAE 140 be too viscous to splash lubricate the rear wheel bearings=
<br clear=3D"none">
effectively?<br clear=3D"none">
<br clear=3D"none">
Would I be better of using a gear oil additive like Nulon G70 instead?<br c=
lear=3D"none">
<br clear=3D"none">
Any shared thoughts or suggestions would be greatly appreciated.<br clear=
=3D"none">
<br clear=3D"none">
Thank you.<br clear=3D"none">
<br clear=3D"none">
Regards, Graham Wilkie.<br clear=3D"none">
BJ8 Moruya NSW Australia.<br clear=3D"none">
_______________________________________________<br clear=3D"none">
=3D"http://www.team.net/donate.html";>http://www.team.net/donate.html</a> Su=
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