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vibration/shudder at 70 - possible alternatives (other than wheel balance?)
- Subject: vibration/shudder at 70 - possible alternatives (other than wheel balance?)
- From: derrickmd18@juno.com (der flo)
- Date: Thu, 24 Apr 2003 07:00:47 -0400
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If your tires are out of round then theres your problem. I brought some
rims with tires and they was out of round and I had your same probem.
And if u balance the tires they should be at zero on both sides.
On Thu, 24 Apr 2003 01:20:55 -0400 "Allyn" <amalventano@sc.rr.com>
writes:
i agree with this theory, but i just shot it out of the water tonight ---
i put in a fresh set of rebuilt half shafts. while it did help the issue
slightly, the shudder at 70 is still there. over the past week of
narrowing the problem down, i have these facts remaining:
- vibration seems to be coming from front right.
- front right is the wheel is the one i had sent off to the straightener
(it came back *very* close to perfectally true.
- jacked up front right and spun it (via engine). the wheel seems to be
straight as it spins, but the tire seems like it may be slightly out of
round. i'll have to check this out some more later.
Al
----- Original Message -----
From: L F
To: Michael Abatzis ; scirocco-l@scirocco.org
Sent: Wednesday, April 23, 2003 7:33 PM
Subject: Re: vibration/shudder at 70 - possible alternatives (other than
wheel balance?)
I gotta' chime in here fellas; I've been driving cars for a lot of years
and learned that a harmonic vibration most likely is NOT a wheel
imbalance.
I'd lean towards CV joint or engine imbalance (I've had both of these
situations result in harmonics)
Larry
sandiego16v
----- Original Message -----
From: Michael Abatzis
To: scirocco-l@scirocco.org
Sent: Tuesday, April 22, 2003 8:41 AM
Subject: RE: vibration/shudder at 70 - possible alternatives (other than
wheel balance?)
try getting a mounted balance--the wheels are balanced on the car, so it
essentially balances all that rotating mass (rotors, hubs, etc). my shop
does it for $8 wheel. i had the wheels/tires balanced unmounted first,
then
mounted; i was amazed how much tweaking needed to be done with the
mounted
balance. the car is lowered, and is rock solid as fast as i care to
go...
-Michael Abatzis
Hotlanta! GA-->Soon to be New Orleans!
1988 Scirocco 2L 16v RIP-->parting, finally taking orders:
www.learnlink.emory.edu/~mabatzi/mikes_page1.html
1987 Scirocco 2L 16v...
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<DIV>If your tires are out of round then theres your problem. I =
brought=20
some rims with tires and they was out of round and I had your same probem.&=
nbsp;=20
And if u balance the tires they should be at zero on both sides.</DIV>
<DIV> </DIV>
<DIV>On Thu, 24 Apr 2003 01:20:55 -0400 "Allyn" <<A=20
href=3D"mailto:amalventano@sc.rr.com";>amalventano@sc.rr.com</A>> writes:=
</DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-LEFT: 10px; MARGIN-LEFT: 10px; BORDER-LEFT: #000000 2px =
solid">
<DIV><FONT face=3DArial size=3D2>i agree with this theory, but i just =
shot it out=20
of the water tonight --- i put in a fresh set of rebuilt half shafts. =
while it=20
did help the issue slightly, the shudder at 70 is still there. over the =
past=20
week of narrowing the problem down, i have these facts remaining:</FONT><=
/DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>- vibration seems to be coming from =
front=20
right.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>- front right is the wheel is the one i =
had sent=20
off to the straightener (it came back *very* close to perfectally=20
true.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>- jacked up front right and spun it (via=
engine).=20
the wheel seems to be straight as it spins, but the tire seems like it =
may be=20
slightly out of round. i'll have to check this out some more=20
later.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Al</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-=
LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>=
From:</B>=20
<A title=3Drocco16v@netzero.net href=3D"mailto:rocco16v@netzero.net";>L =
F</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A title=3Dabatzis2@hotmail.=
com=20
href=3D"mailto:abatzis2@hotmail.com";>Michael Abatzis</A> ; <A=20
title=3Dscirocco-l@scirocco.org=20
href=3D"mailto:scirocco-l@scirocco.org";>scirocco-l@scirocco.org</A> </=
DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, April 23, 2003 =
7:33=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: vibration/shudder =
at 70 -=20
possible alternatives (other than wheel balance?)</DIV>
<DIV><BR></DIV>
<DIV><FONT face=3DArial size=3D2>I gotta' chime in here fellas; I=
've been=20
driving cars for a lot of years and learned that a=20
<EM>harmonic</EM> <EM>vibration </EM>most likely is NOT a wheel=20
imbalance. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2> I'd lean towards CV joint or =
engine=20
imbalance (I've had both of these situations result in=20
harmonics)</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Larry</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>sandiego16v</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B=
>From:</B>=20
<A title=3Dabatzis2@hotmail.com href=3D"mailto:abatzis2@hotmail.com";>=
Michael=20
Abatzis</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A title=3Dscirocco-l@=
scirocco.org=20
href=3D"mailto:scirocco-l@scirocco.org";>scirocco-l@scirocco.org</A> <=
/DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, April 22, 2003 =
8:41=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: vibration/shudder=
at 70=20
- possible alternatives (other than wheel balance?)</DIV>
<DIV><BR></DIV>try getting a mounted balance--the wheels are balanced=
on=20
the car, so it <BR>essentially balances all that rotating mass (=
rotors,=20
hubs, etc). my shop <BR>does it for $8 wheel. i had the wheels/tires=
=20
balanced unmounted first, then <BR>mounted; i was amazed how much =
tweaking=20
needed to be done with the mounted <BR>balance. the car is =
lowered,=20
and is rock solid as fast as i care to go...<BR><BR><BR>-Michael=20
Abatzis<BR>Hotlanta! GA-->Soon to be New Orleans!<BR>1988 Scirocco=
2L=20
16v RIP-->parting, finally taking orders: <BR><A=20
href=3D"http://www.learnlink.emory.edu/~mabatzi/mikes_page1.html";>www=
.learnlink.emory.edu/~mabatzi/mikes_page1.html</A><BR>1987=20
Scirocco 2L=20
16v...<BR><BR><BR><BR><BR>___________________________________________=
______________________<BR>MSN=20
8 helps eliminate e-mail viruses. Get 2 months FREE*. <BR><A=20
href=3D"http://join.msn.com/?page=3Dfeatures/virus";>http://join.msn.=
com/?page=3Dfeatures/virus</A><BR><BR><BR>_________________________________=
______________<BR>Scirocco-l=20
mailing list<BR><A=20
href=3D"mailto:Scirocco-l@scirocco.org";>Scirocco-l@scirocco.org</A><=
BR><A=20
href=3D"http://neubayern.net/mailman/listinfo/scirocco-l";>http://=
neubayern.net/mailman/listinfo/scirocco-l</A><BR></BLOCKQUOTE></BLOCKQUOTE>
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