This is a multi-part message in MIME format.
--===============4005294413782298712==
boundary="----=_NextPart_000_0024_01D79A54.5D6FB010"
This is a multi-part message in MIME format.
------=_NextPart_000_0024_01D79A54.5D6FB010
charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Yes the sliding joint only ever goes towards the gearbox, and the UJs do =
have to be aligned correctly. My Haynes has an exploded drawing showing =
them incorrectly aligned and assembled drawing showing them correct. My =
WSM is correct. It's much easier to show in a picture of course, but =
I'll try describing it in less than 1000 words.
The flange halves of the UJs must have their axes in the same direction =
as each other i.e. if the gearbox flange half is vertical then the axle =
flange half must be vertical as well. Get it wrong and you get =
excessive wear in the UJs .
But that's not the whole story.
As said the sliding joint comes apart which means it can be reassembled =
in as many ways as there are splines. Two of these ways will give the =
correct flange orientation, but only one of them is how the shaft would =
have been balanced originally. Get them 180 degrees out and you could =
get significant imbalance and vibration. There should be alignment =
marks on the two halves of the sliding joint but they are often missing =
and even when there are very faint. More info with pictures here =
http://www.mgb-stuff.org.uk/ps.htm
Both Haynes and the WSM make great play about when removing the =
propshaft you should mark the flanges it goes back on the car as it came =
off. That's a nice to have, but it's not essential, as the shaft is =
balanced as a unit and should run correctly whichever way the pairs of =
flanges are bolted up to each other. After all, if you were buying a =
new propshaft the flanges wouldn't have been marked.
PaulH.
----- Original Message -----=20
The sliding joint (sleeve & spline) end is forward, toward the =
gearbox.
As the driveshaft may have been separated at the sliding joint =
(they will pull apart when off the car), check that the yokes of the =
universal joints are aligned.
Bob
On Aug 25, 2021, at 3:29 PM, <jimray@hartcom.net> <jimray@hartcom.net> =
wrote:
Can anyone give me the correct orientation (front to back) of the =
driveshaft on an 80 MGB. Does the end with the sleeve and spline connect =
to the differential or the transmission. I=E2=80=99ve seen examples of =
both configurations.
------=_NextPart_000_0024_01D79A54.5D6FB010
charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
=EF=BB=BF<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Dutf-8" http-equiv=3Dcontent-type>
<META name=3DGENERATOR content=3D"MSHTML 8.00.6001.23588"></HEAD>
<BODY dir=3Dauto bgColor=3D#ffffff>
<DIV>Yes the sliding joint only ever goes towards the gearbox, and the =
UJs do=20
have to be aligned correctly. My Haynes has an exploded drawing =
showing=20
them incorrectly aligned and assembled drawing showing them =
correct. My=20
WSM is correct. It's much easier to show in a picture of course, =
but I'll=20
try describing it in less than 1000 words.</DIV>
<DIV> </DIV>
<DIV>The flange halves of the UJs must have their axes in the same =
direction as=20
each other i.e. if the gearbox flange half is vertical then the axle =
flange half=20
must be vertical as well. Get it wrong and you get excessive wear =
in the=20
UJs .</DIV>
<DIV> </DIV>
<DIV>But that's not the whole story.</DIV>
<DIV> </DIV>
<DIV>As said the sliding joint comes apart which means it can be =
reassembled in=20
as many ways as there are splines. Two of these ways will give the =
correct=20
flange orientation, but only one of them is how the shaft would have =
been=20
balanced originally. Get them 180 degrees out and you could get=20
significant imbalance and vibration. There should be alignment =
marks on=20
the two halves of the sliding joint but they are often missing and even =
when=20
there are very faint. More info with pictures here <A=20
href=3D"http://www.mgb-stuff.org.uk/ps.htm";>http://www.mgb-stuff.org.uk/p=
s.htm</A>
<DIV> </DIV></DIV>
<DIV>Both Haynes and the WSM make great play about when removing the =
propshaft=20
you should mark the flanges it goes back on the car as it came =
off. That's=20
a nice to have, but it's not essential, as the shaft is balanced as a =
unit and=20
should run correctly whichever way the pairs of flanges are bolted =
up to=20
each other. After all, if you were buying a new propshaft the =
flanges=20
wouldn't have been marked.</DIV>
<DIV> </DIV>
<DIV>PaulH.</DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV><BR></DIV>
<DIV dir=3Dltr></DIV>
<DIV dir=3Dltr> The sliding joint (sleeve & spline) =
end is=20
forward, toward the gearbox.</DIV>
<DIV dir=3Dltr> As the driveshaft may have been separated =
at the=20
sliding joint (they will pull apart when off the car), check that the =
yokes of=20
the universal joints are aligned.</DIV>
<DIV dir=3Dltr>Bob</DIV>
<DIV dir=3Dltr><BR></DIV>
<DIV dir=3Dltr><BR>On Aug 25, 2021, at 3:29 PM, <<A=20
href=3D"mailto:jimray@hartcom.net";>jimray@hartcom.net</A>> <<A=20
href=3D"mailto:jimray@hartcom.net";>jimray@hartcom.net</A>>=20
wrote:<BR><BR></DIV>
<BLOCKQUOTE type=3D"cite">
<DIV dir=3Dltr>
<META name=3DGenerator content=3D"Microsoft Word 15 (filtered =
medium)">
<STYLE>@font-face {
font-family: Cambria Math;
}
@font-face {
font-family: Calibri;
}
@page WordSection1 {size: 8.5in 11.0in; margin: 1.0in 1.0in 1.0in 1.0in; =
}
P.MsoNormal {
MARGIN: 0in; FONT-FAMILY: "Calibri",sans-serif; FONT-SIZE: 11pt
}
LI.MsoNormal {
MARGIN: 0in; FONT-FAMILY: "Calibri",sans-serif; FONT-SIZE: 11pt
}
DIV.MsoNormal {
MARGIN: 0in; FONT-FAMILY: "Calibri",sans-serif; FONT-SIZE: 11pt
}
SPAN.EmailStyle17 {
FONT-FAMILY: "Arial",sans-serif; COLOR: windowtext; mso-style-type: =
personal-compose
}
.MsoChpDefault {
FONT-FAMILY: "Calibri",sans-serif; mso-style-type: export-only
}
DIV.WordSection1 {
page: WordSection1
}
</STYLE>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]-->
<DIV class=3DWordSection1>
<P class=3DMsoNormal><SPAN=20
style=3D"FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 14pt">Can =
anyone give me=20
the correct orientation (front to back) of the driveshaft on an 80 =
MGB. Does=20
the end with the sleeve and spline connect to the differential or =
the=20
transmission. I=E2=80=99ve seen examples of both=20
=
configurations.<O:P></O:P></SPAN></P></DIV></DIV></BLOCKQUOTE></BLOCKQUOT=
E></BODY></HTML>
------=_NextPart_000_0024_01D79A54.5D6FB010--
--===============4005294413782298712==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Mgs@autox.team.net
Archive: http://www.team.net/pipermail/mgs http://autox.team.net/archive
Unsubscribe: http://autox.team.net/mailman/options/mgs/mharc@autox.team.net
--===============4005294413782298712==--
|