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most likely the pinion has lost its preload and it is moving in and out
along the face of the ring gear...ie changing the pattern and causing a
whine. Sometimes the carrier bearings will wear and cause a pattern shift,
but usually a growling from the bearings accompanies the whine
Chip Collingwood
theukmotorsports.com
(804) 564-1839
On Wed, Aug 19, 2020 at 11:39 AM Robert Lang via Fot <fot@autox.team.net>
wrote:
> CHECK IT BEFORE YOU DESTROY IT.
>
> 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.
>
> And keep in mind that scrap steel prices are "fairly low".
>
> Regards,
> Bob Lang
>
>
> On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn McKearn via Fot <
> fot@autox.team.net> wrote:
>
>
> 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
> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
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> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
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Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:tahoma,s=
ans-serif;color:#0000ff">most likely the pinion has lost its preload and it=
is moving in and out along the face of the ring gear...ie changing the pat=
tern and causing a whine. Sometimes the carrier bearings will wear and caus=
e a pattern shift, but usually a growling from the bearings accompanies the=
whine</div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-s=
erif;color:#0000ff"><br></div><div><div dir=3D"ltr" class=3D"gmail_signatur=
e" data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div><font face=3D"c=
omic sans ms, sans-serif" color=3D"#0000ff">Chip Collingwood</font><div><a =
href=3D"http://theukmotorsports.com"; target=3D"_blank"><font face=3D"comic =
sans ms, sans-serif" color=3D"#0000ff">theukmotorsports.com</font></a></div=
><div><font face=3D"comic sans ms, sans-serif" color=3D"#0000ff">(804) 564-=
1839</font></div></div></div></div></div><br></div><br><div class=3D"gmail_=
quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Aug 19, 2020 at 11:39 =
AM Robert Lang via Fot <<a href=3D"mailto:fot@autox.team.net";>fot@autox.=
team.net</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D=
"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-le=
ft:1ex"><div><div style=3D"font-family:"Helvetica Neue",Helvetica=
,Arial,sans-serif;font-size:13px"><div></div>
<div dir=3D"ltr">CHECK IT BEFORE YOU DESTROY IT. <br></div><div dir=
=3D"ltr"><br></div><div dir=3D"ltr">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 destr=
oy 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></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">And =
keep in mind that scrap steel prices are "fairly low".</div><div =
dir=3D"ltr"><br></div><div dir=3D"ltr">Regards,</div><div dir=3D"ltr">Bob L=
ang</div><div dir=3D"ltr"><br></div><div><br></div>
=20
</div><div id=3D"gmail-m_4127443740588497965ydp256e4462yahoo_quoted=
_7989025310">
<div style=3D"font-family:"Helvetica Neue",Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
=20
<div>
On Wednesday, August 19, 2020, 10:59:08 AM EDT, McKearn=
McKearn via Fot <<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank=
">fot@autox.team.net</a>> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id=3D"gmail-m_4127443740588497965ydp256e4462yiv07=
20270631"><div dir=3D"ltr"><div>Hi All.</div><div>=C2=A0 I am hearing some =
whining going on behind me when driving my 68 GT6..</div><div>=C2=A0It is o=
nly at neutral acceleration/deceleration and above 40 MPH ( There is no whi=
ne when accelerating or decelerating). =C2=A0 Stock 3.27:1 rear end.</div><=
div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 Any thoug=
hts ?</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Thanks Pat</div=
></div>
</div>_______________________________________________<br><a href=3D"mailto:=
fot@autox.team.net" rel=3D"nofollow" target=3D"_blank">fot@autox.team.net</=
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<br>
</blockquote></div>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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