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Re: [Mgs] backing up shudder

To: mike@duvallvideo.com
Subject: Re: [Mgs] backing up shudder
From: mgbob--- via Mgs <mgs@autox.team.net>
Date: Sat, 20 Jun 2015 20:39:03 GMT
Cc: mgs@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: mgs@autox.team.net
Full-name: "mgbob@juno.com" <mgbob@juno.com>
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  Welcome back to the judder club.    In the TD, causes can be all you l=
isted:   Front mount-possible, I suppose you could use a pry bar gently =
and life engine to see if rubber has un-stuck from the metal. Originals =
lasted 50 years. Today's improved replacements about 1/5 of that. Lift g=
ently, though, as you don't want to cause separation if it has not alrea=
dy happened.  Stabiliser-check that movement of engine is about 1/8 inch=
, which is about the "give" in the rubbers. If more, look further, to ad=
justing the bar if there is evidence that the turnbuckle has moved (not =
likely), and inspection of the rubbers.   Transmission mount--from under=
neath, push up and pull down on the gearbox tail or at the flange. There=
 should not be much movement. If the rubbers are bulged and cracked, the=
y may be bad. Changing them is not complicated, but can be time taking a=
nd messy. Oil mess from engine is usual cause of their deterioration, th=
ough. No need to remove it; just shove the gearbox around to judge free =
movement, of which there should be less than 1/8 inch.   Axle U bolts--t=
he usual cause. If you have not already installed those wear plates on t=
op of the axle, remove one bolt and feel for groove worn where the U bol=
t passes over axle tube. Buy a pair of the wear plates if there is any g=
roove, and not a bad thing to have them installed anyway. MGA and later =
had them on the axles from new.  Best of luck finding it--this can be a =
challenge. I have been chasing it for a decade.Bob

---------- Original Message ----------
From: Mike Duvall via Mgs <mgs@autox.team.net>
To: mgs@autox.team.net
Subject: [Mgs] backing up shudder
Date: Sat, 20 Jun 2015 12:28:20 -0500


Both my A and TD started jumping or shuddering when backing up.    I had=
 this happen before-  seems odd it started again on 2 cars but coinciden=
ce I&rsquo;m sure.

I searched and can&rsquo;t find much so I want to know if I&rsquo;m miss=
ing anything&hellip;

Possible:
front engine mount
transmission mount  (do I have to take it out to see on the TD?) =

axle U bolts =


TD engine stabilizer

TD clutch (seems like might have been the problem last time but what do =
I adjust here)


Other ideas or what am I missing?   I read pilot bearings but were repla=
ced so I doubt much wear. =


Thanks, Mike
_______________________________________________

Mgs@autox.team.net
Archive: http://www.team.net/archive
Unsubscribe: http://autox.team.net/mailman/options/mgs/mgbob@juno.com

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<html><div>&nbsp; Welcome back to the judder club. &nbsp;</div><div>&nbs=
p; In the TD, causes can be all you listed:</div><div>&nbsp; &nbsp;Front=
 mount-possible, I suppose you could use a pry bar gently and life engin=
e to see if rubber has un-stuck from the metal. Originals lasted 50 year=
s. Today's improved replacements about 1/5 of that. Lift gently, though,=
 as you don't want to cause separation if it has not already happened.</=
div><div>&nbsp; Stabiliser-check that movement of engine is about 1/8 in=
ch, which is about the "give" in the rubbers. If more, look further, to =
adjusting the bar if there is evidence that the turnbuckle has moved (no=
t likely), and inspection of the rubbers.&nbsp;</div><div>&nbsp; Transmi=
ssion mount--from underneath, push up and pull down on the gearbox tail =
or at the flange. There should not be much movement. If the rubbers are =
bulged and cracked, they may be bad. Changing them is not complicated, b=
ut can be time taking and messy. Oil mess from engine is usual cause of =
their deterioration, though. No need to remove it; just shove the gearbo=
x around to judge free movement, of which there should be less than 1/8 =
inch.&nbsp;</div><div>&nbsp; Axle U bolts--the usual cause. If you have =
not already installed those wear plates on top of the axle, remove one b=
olt and feel for groove worn where the U bolt passes over axle tube. Buy=
 a pair of the wear plates if there is any groove, and not a bad thing t=
o have them installed anyway. MGA and later had them on the axles from n=
ew.</div><div>&nbsp; Best of luck finding it--this can be a challenge. I=
 have been chasing it for a decade.</div><div>Bob</div><div><br><br>----=
------ Original Message ----------<br>From: Mike Duvall via Mgs &lt;mgs@=
autox.team.net&gt;<br>To: mgs@autox.team.net<br>Subject: [Mgs] backing u=
p shudder<br>Date: Sat, 20 Jun 2015 12:28:20 -0500<br><br><br>Both my A =
and TD started jumping or shuddering when backing up. &nbsp;&nbsp;&nbsp;=
I had this happen before- &nbsp;seems odd it started again on 2 cars but=
 coincidence I&rsquo;m sure.<br><br>I searched and can&rsquo;t find much=
 so I want to know if I&rsquo;m missing anything&hellip;<br><br>Possible=
:<br>front engine mount<br>transmission mount &nbsp;(do I have to take i=
t out to see on the TD?) <br>axle U bolts <br><br>TD engine stabilizer<b=
r><br>TD clutch (seems like might have been the problem last time but wh=
at do I adjust here)<br><br><br>Other ideas or what am I missing? &nbsp;=
&nbsp;I read pilot bearings but were replaced so I doubt much wear. <br>=
<br>Thanks, Mike<br>_______________________________________________<br><=
br>Mgs@autox.team.net<br>Donate: http://www.team.net/donate.html<br>Sugg=
ested annual donation &nbsp;$12.75<br>Archive: http://www.team.net/archi=
ve<br>Forums: http://www.team.net/forums<br>Unsubscribe: http://autox.te=
am.net/mailman/options/mgs/mgbob@juno.com</p></html>

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_______________________________________________

Mgs@autox.team.net
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Unsubscribe: http://autox.team.net/mailman/options/mgs/mharc@autox.team.net

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