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Hi Mitchell,
The set up of hypoid diff gears is relatively complex job requiring some
special tools and a good selection of the correct shims and considerable
experience.The process is well described in the factory workshop manual
however as others have noted if the gears are not "perfect" they will
always produce some noise regardless of how well they are set up.
I have an aftermarket spiral bevel 3.66/1 set in #174 and despite 3
attempts to make it silent it still "talks" to me.
The original crown wheel and pinion set that I removed from an Austin
Atlantic diff was silent from the time I initially installed it so I
suspect that the quality of manufacturing is very important.
Unfortunately I sold that one together with the original 2.92/1 with my
100S.
Michael S
BN1 #174
On Thu, Oct 27, 2016 at 10:31 AM, <dayton21@comcast.net> wrote:
> Experts,
>
>
>
> I had the Lempert gear set installed in my 1966 BJ8 this year put about
> 2000 miles on it.
>
> I have a pretty loud hum at about 35-45 mph=E2=80=A6=E2=80=A6=E2=80=A6the=
hum only occurs when
> accelerating=E2=80=A6..when you let off it goes away.
>
> Can someone tell me what is causing it ? can the new gears be
> readjusted if that=E2=80=99s the problem?
>
>
>
> Thanks in advance
>
> Mitchell
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=3D550986> for
> Windows 10
>
>
>
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--=20
*If you can't fix it with a hammer, you've got an electrical problem.*
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:comic sa=
ns ms,sans-serif;font-size:small">Hi Mitchell,<br></div><div class=3D"gmail=
_default" style=3D"font-family:comic sans ms,sans-serif;font-size:small">Th=
e set up of hypoid diff gears is=C2=A0 relatively complex job requiring som=
e special tools and a good selection of the correct shims and considerable =
experience.The process is well described in the factory workshop manual how=
ever as others have noted if the gears are not "perfect" they wil=
l always produce some noise regardless of how well they are set up.<br></di=
v><div class=3D"gmail_default" style=3D"font-family:comic sans ms,sans-seri=
f;font-size:small">I have an aftermarket spiral bevel 3.66/1 set in #174 an=
d despite 3 attempts to make it silent it still "talks" to me.<br=
></div><div class=3D"gmail_default" style=3D"font-family:comic sans ms,sans=
-serif;font-size:small">The original crown wheel and pinion set that I remo=
ved from an Austin Atlantic diff was silent from the time I initially insta=
lled it so I suspect that the quality of manufacturing is very important. <=
br>Unfortunately I sold that one together with the original 2.92/1=C2=A0 wi=
th my 100S.<br></div><div class=3D"gmail_default" style=3D"font-family:comi=
c sans ms,sans-serif;font-size:small">Michael S<br></div><div class=3D"gmai=
l_default" style=3D"font-family:comic sans ms,sans-serif;font-size:small">B=
N1 #174<br></div><div class=3D"gmail_default" style=3D"font-family:comic sa=
ns ms,sans-serif;font-size:small"><br></div><div class=3D"gmail_extra"><br>=
<div class=3D"gmail_quote">On Thu, Oct 27, 2016 at 10:31 AM, <span dir=3D"=
ltr"><<a href=3D"mailto:dayton21@comcast.net"; target=3D"_blank">dayton21=
@comcast.net</a>></span> wrote:<br><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div l=
ink=3D"blue" vlink=3D"#954F72" lang=3D"EN-US"><div class=3D"m_-727434104189=
2139056m_1669147753107231845WordSection1"><p class=3D"MsoNormal">Experts,</=
p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">I h=
ad the Lempert gear set installed in my 1966 BJ8=C2=A0 this year=C2=A0 put =
about 2000 miles on it.</p><p class=3D"MsoNormal">I have a pretty loud hum =
at about 35-45 mph=E2=80=A6=E2=80=A6=E2=80=A6the hum only occurs when accel=
erating=E2=80=A6..when you let off it goes away.</p><p class=3D"MsoNormal">=
Can someone tell me what is causing it ?=C2=A0=C2=A0=C2=A0=C2=A0 can the ne=
w gears be readjusted if that=E2=80=99s the problem?</p><p class=3D"MsoNorm=
al"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">Thanks in advance</p><p =
class=3D"MsoNormal">Mitchell</p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u>=
</p><p class=3D"MsoNormal">Sent from <a href=3D"https://go.microsoft.com/fw=
link/?LinkId=3D550986" target=3D"_blank">Mail</a> for Windows 10</p><p clas=
s=3D"MsoNormal"><u></u>=C2=A0<u></u></p></div></div><br>___________________=
___________<wbr>_________________<br>
rer" target=3D"_blank">http://www.team.net/donate.htm<wbr>l</a><br>
Archive: <a href=3D"http://www.team.net/archive"; rel=3D"noreferrer" target=
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<br>
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eam.net</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys"; rel=3D"noreferre=
r" target=3D"_blank">http://autox.team.net/mailman/<wbr>listinfo/healeys</a=
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<br>
s/michaelsalter@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://auto=
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<br>
<br></blockquote></div><br><br clear=3D"all"><br>-- <br><div class=3D"m_-72=
74341041892139056gmail_signature" data-smartmail=3D"gmail_signature"><div d=
ir=3D"ltr"><div><div dir=3D"ltr"><i><font size=3D"2"><span style=3D"color:b=
lack">If you can't fix it with a hammer, you've got an electrical p=
roblem.</span></font></i><br><br><div></div><div></div><div></div></div></d=
iv></div></div>
</div></div>
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