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Re: [Fot] Dif. noise

To: "John H. Hasty" <jhasty@mhc-law.com>
Subject: Re: [Fot] Dif. noise
From: Scott Janzen via Fot <fot@autox.team.net>
Date: Wed, 19 Aug 2020 14:10:38 -0400
Cc: 'Friends of Triumph' Triumph <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <CAAGAaPVE3sPKj4nN8J8N0kWeawJw0G10p8nnaowGqq-i06eEmw@mail.gmail.com> <408779599.3310024.1597851516171@mail.yahoo.com> <1410854611.3315779.1597852096001@mail.yahoo.com> <839BA7B4-0937-4FBA-83D7-53AAEFCF2503@me.com> <CAAGAaPV5ZyZM0DZtsiEAw2E4aVXmVZq8j8V_8Mi1C=avR+4MMw@mail.gmail.com> <28F3BEB7-32C2-4E57-89A2-74DBD75D59D1@me.com> <902FD7D3-E60A-4818-BA08-83FCFA11CCF8@mhc-law.com> definitions=2020-08-19_11:2020-08-19, 2020-08-19 signatures=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-2004280000 definitions=main-2008190149
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ouch.  Even in the late 1970s, $200 did not get you much.  Beaters, we =
called them.

On Aug 19, 2020, at 2:00 PM, John H. Hasty <jhasty@mhc-law.com> wrote:

Gee Scott, given your age, a $200 car would have been a fairly current =
model back then!

Sent from my iPhone

> On Aug 19, 2020, at 1:52 PM, Scott Janzen via Fot <fot@autox.team.net> =
wrote:
>=20
> =EF=BB=BF well, there is the "ignore it" approach.  If you have a =
spare diff or three, no big deal - you could drive 'til it craps out, =
though at that point a rebuild is probably out of the question! =20
> Back in the old days in Pittsburgh, when I got a $200 car every winter =
to drive through the ice, salt and potholes, there was no maintenance, =
as long as it started.  Of course, that=E2=80=99s because I was =
preserving my sports car in the garage.
>=20
> On Aug 19, 2020, at 1:47 PM, McKearn McKearn <mckearn2@gmail.com =
>=20
> Thanks for the replies. (Some of you :)
>    I was pretty much planning to pull it apart again but was hoping =
someone would humor me into not worrying about it ..
>                                         P.J.
>=20
>  =20
>=20
> On Wed, Aug 19, 2020 at 10:52 AM Scott Janzen <sjanzen@me.com =
> You can=E2=80=99t really =E2=80=9Cpull the cover=E2=80=9D on a =
Spit/GT6 diff, but it=E2=80=99s easy enough to drop the whole diff and =
much easier to examine on the bench. =20
>=20
> On Aug 19, 2020, at 11:48 AM, vfracing--- via Fot <fot@autox.team.net =
>=20
> Pat;
> If it's a stock set up from the factory, my first suspicion would be =
one of the differential carrier bearings.  That is, if you are certain =
it is from the differential. Wheel bearings can be checked by pitching =
the car side to side (no traffic, wide open parking lot) to change the =
loading and hence the level of whine.
>=20
> But Bob is right: check it out NOW. The cover and perhaps the carrier =
should be pulled and a visual inspection made.  Look for pitting on the =
bearings and gear teeth, check the pattern (before pulling the carrier) =
with Bluing Compound (or, lacking that, bright colored paint)
>=20
> Hopefully it's just a bearing,
>=20
> Phil Gott
>=20
>=20
> -----Original Message-----
> From: Robert Lang via Fot <fot@autox.team.net =
> Sent: Wed, Aug 19, 2020 11:39 am
> Subject: Re: [Fot] Dif. noise
>=20
> CHECK IT BEFORE YOU DESTROY IT.=20
>=20
> Whining is because the gears aren't meshing properly. This will result =
in premature wear if you're lucky. If you are not lucky, you'll overheat =
the diff and / or otherwise destroy it. Sometimes the noise can be from =
something really dumb, like the ring gear bolts backing out and you find =
out when one of the bolts wedge in the diff case with the resulting =
damage to everything. Not that I've done that or anything.
>=20
> And keep in mind that scrap steel prices are "fairly low".
>=20
> Regards,
> Bob Lang
>=20
>=20
> On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via =
>=20
>=20
> Hi All.
>   I am hearing some whining going on behind me when driving my 68 =
GT6..
>  It is only at neutral acceleration/deceleration and above 40 MPH ( =
There is no whine when accelerating or decelerating).   Stock 3.27:1 =
rear end.
>                                                            Any =
thoughts ?
>                                   Thanks Pat
> _______________________________________________
>=20
> http://www.fot-racing.com <http://www.fot-racing.com/>
>=20
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">ouch.=
 &nbsp;Even in the late 1970s, $200 did not get you much. &nbsp;Beaters, =
we called them.<br class=3D""><div><br class=3D""><div class=3D"">On Aug =
19, 2020, at 2:00 PM, John H. Hasty &lt;<a =
href=3D"mailto:jhasty@mhc-law.com"; class=3D"">jhasty@mhc-law.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D"">

<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" =
class=3D"">

<div dir=3D"auto" class=3D"">
Gee Scott, given your age, a $200 car would have been a fairly current =
model back then!<br class=3D"">
<br class=3D"">
<div dir=3D"ltr" class=3D"">Sent from my iPhone</div>
<div dir=3D"ltr" class=3D""><br class=3D"">
<blockquote type=3D"cite" class=3D"">On Aug 19, 2020, at 1:52 PM, Scott =
Janzen via Fot &lt;<a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a>&gt; wrote:<br class=3D"">
<br class=3D"">
</blockquote>
</div>
<blockquote type=3D"cite" class=3D"">
<div dir=3D"ltr" class=3D"">=EF=BB=BF well, there is the "ignore it" =
approach. &nbsp;If you have a spare diff or three, no big deal - you =
could drive 'til it craps out, though at that point a rebuild is =
probably out of the question! &nbsp;
<div class=3D"">Back in the old days in Pittsburgh, when I got a $200 =
car every winter to drive through the ice, salt and potholes, there was =
no maintenance, as long as it started. &nbsp;Of course, that=E2=80=99s =
because I was preserving my sports car in the garage.<br class=3D"">
<div class=3D""><br class=3D"">
<div class=3D"">On Aug 19, 2020, at 1:47 PM, McKearn McKearn &lt;<a =
href=3D"mailto:mckearn2@gmail.com"; class=3D"">mckearn2@gmail.com</a>&gt; =
wrote:</div>
<br class=3D"Apple-interchange-newline">
<div class=3D"">
<div dir=3D"ltr" class=3D"">
<div class=3D"">Thanks for the replies. (Some of you :)</div>
<div class=3D"">&nbsp;&nbsp; I was pretty much planning to pull it apart =
again but was hoping someone would humor me into not worrying about it =
..</div>
<div class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; P.J.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">&nbsp;&nbsp;</div>
</div>
<br class=3D"">
<div class=3D"gmail_quote">
<div class=3D"gmail_attr" dir=3D"ltr">On Wed, Aug 19, 2020 at 10:52 AM =
Scott Janzen &lt;<a href=3D"mailto:sjanzen@me.com"; =
class=3D"">sjanzen@me.com</a>&gt; wrote:<br class=3D"">
</div>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-widt=
h:1px;border-left-style:solid">
<div style=3D"overflow-wrap: break-word;" class=3D"">You can=E2=80=99t =
really =E2=80=9Cpull the cover=E2=80=9D on a Spit/GT6 diff, but it=E2=80=99=
s easy enough to drop the whole diff and much easier to examine on the =
bench. &nbsp;<br class=3D"">
<div class=3D""><br class=3D"">
<div class=3D"">On Aug 19, 2020, at 11:48 AM, vfracing--- via Fot &lt;<a =
href=3D"mailto:fot@autox.team.net"; target=3D"_blank" =
class=3D"">fot@autox.team.net</a>&gt; wrote:</div>
<br class=3D"">
<div class=3D"">
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Pat;</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">If it's a stock set up from the factory, my first suspicion =
would be one of the differential carrier bearings.&nbsp; That is, if you =
are certain it is from the differential. Wheel bearings
 can be checked by pitching the car side to side (no traffic, wide open =
parking lot) to change the loading and hence the level of whine.</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D"">
</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">But Bob is right: check it out NOW. The cover and perhaps the =
carrier should be pulled and a visual inspection made.&nbsp; Look for =
pitting on the bearings and gear teeth, check the pattern
 (before pulling the carrier) with Bluing Compound (or, lacking that, =
bright colored paint)<br class=3D"">
</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D"">
</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Hopefully it's just a bearing,</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D"">
</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D"">Phil Gott</div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:10pt" =
class=3D""><br class=3D"">
<br class=3D"">
-----Original Message-----<br class=3D"">
From: Robert Lang via Fot &lt;<a href=3D"mailto:fot@autox.team.net"; =
target=3D"_blank" class=3D"">fot@autox.team.net</a>&gt;<br class=3D"">
To: FOT list &lt;<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank" =
class=3D"">fot@autox.team.net</a>&gt;; McKearn McKearn &lt;<a =
href=3D"mailto:mckearn2@gmail.com"; target=3D"_blank" =
class=3D"">mckearn2@gmail.com</a>&gt;<br class=3D"">
Sent: Wed, Aug 19, 2020 11:39 am<br class=3D"">
Subject: Re: [Fot] Dif. noise<br class=3D"">
<br class=3D"">
</div>
<div id=3D"gmail-m_1305250608599246961yiv9913073415" class=3D"">
<div class=3D"">
<div style=3D"font-family:Helvetica =
Neue,Helvetica,Arial,sans-serif;font-size:13px" class=3D"">
<div class=3D""></div>
<div dir=3D"ltr" class=3D"">CHECK IT BEFORE YOU DESTROY IT. <br =
clear=3D"none" class=3D"">
</div>
<div dir=3D"ltr" class=3D""><br clear=3D"none" class=3D"">
</div>
<div dir=3D"ltr" class=3D"">Whining is because the gears aren't meshing =
properly. This will result in premature wear if you're lucky. If you are =
not lucky, you'll overheat the diff and / or otherwise destroy it. =
Sometimes the noise can be from something really
 dumb, like the ring gear bolts backing out and you find out when one of =
the bolts wedge in the diff case with the resulting damage to =
everything. Not that I've done that or anything.<br clear=3D"none" =
class=3D"">
</div>
<div dir=3D"ltr" class=3D""><br clear=3D"none" class=3D"">
</div>
<div dir=3D"ltr" class=3D"">And keep in mind that scrap steel prices are =
"fairly low".</div>
<div dir=3D"ltr" class=3D""><br clear=3D"none" class=3D"">
</div>
<div dir=3D"ltr" class=3D"">Regards,</div>
<div dir=3D"ltr" class=3D"">Bob Lang</div>
<div dir=3D"ltr" class=3D""><br clear=3D"none" class=3D"">
</div>
<div class=3D""><br clear=3D"none" class=3D"">
</div>
</div>
<div =
id=3D"gmail-m_1305250608599246961yiv9913073415ydp256e4462yahoo_quoted_7989=
025310" class=3D"">
<div style=3D"color:rgb(38,40,42);font-family:&quot;Helvetica =
Neue&quot;,Helvetica,Arial,sans-serif;font-size:13px" class=3D"">
<div id=3D"gmail-m_1305250608599246961yiv9913073415yqt68010" class=3D"">
<div class=3D"">On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn =
McKearn via Fot &lt;<a href=3D"mailto:fot@autox.team.net"; =
target=3D"_blank" class=3D"">fot@autox.team.net</a>&gt; wrote:
</div>
<div class=3D""><br clear=3D"none" class=3D"">
</div>
<div class=3D""><br clear=3D"none" class=3D"">
</div>
<div class=3D"">
<div =
id=3D"gmail-m_1305250608599246961yiv9913073415ydp256e4462yiv0720270631" =
class=3D"">
<div dir=3D"ltr" class=3D"">
<div class=3D"">Hi All.</div>
<div class=3D"">&nbsp; I am hearing some whining going on behind me when =
driving my 68 GT6..</div>
<div class=3D"">&nbsp;It is only at neutral acceleration/deceleration =
and above 40 MPH ( There is no whine when accelerating or decelerating). =
&nbsp; Stock 3.27:1 rear end.</div>
<div class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;&nbsp; Any thoughts ?</div>
<div class=3D"">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Thanks =
Pat</div>
</div>
</div>
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