OT:huge sudden vibration(broken motor mount?)

[amalventano at sc.rr.com (Allyn)]

umm... i wouldnt drive that car much more until you change the mounts. heres
why:
with good side mounts, the rear mount can be removed with no jacking. if the
engine sits SO LOW that you have to jack it up 'inches' just to get it lined
back up, your side mounts are toast. this will cause the front+rear mounts
to support the engines weight. the rear mount isnt too bad, since it bolts
directly to the central frame of the car, but the front mount bolts to the
weakest part of an a1 (front cross member, under radiator). driving at all
risks splitting that cross member into several pieces, especially now that
the rear mount is fixed, even more stresses will be on the front mount.

side note: even all rubber missing from the side mounts shouldnt let the
engine go THAT low. i would look for missing bolts from the tranny bracket.

hth,
Al

----- Original Message ----- 
From: "Ryan Ruggles" <ryanruggles@uniserve.com>
To: "Allyn" <amalventano@sc.rr.com>
Cc: <scirocco-l@scirocco.org>
Sent: Thursday, September 18, 2003 1:02 PM
Subject: Re: OT:huge sudden vibration(broken motor mount?)


> Thanks for all of the information guys.  The reason the car was vibrating
so
> much is because the motor had slipped back so far that the throtle body
> (redline) idle bolt was sitting on the coil and it was vibrating the shite
> out of the car.  It almost punctured the coil!!  Anyways, when I jacked
the
> car up, I saw that the rear mount had split clean across and had slid down
> about 2-3 inches.
>
> SOOOOOOOOO......  I jacked up the motor and tranny and it slid right back
> on.  The motor is sitting higher than it ever has before so I am thinking
> this has been partiallly broken since I owned the car.  Then I wrapped
about
> 7 heavy-duy tie-straps to synch the mount into place. Heh heh...  Pretty
> cheap ass I know but it only has to hold for two days. I figure I should
> just do all of the mounts and get rid of all of the vibrations I've had to
> deal with since I've owned it.
>
> Thanks again
>
> Ryan
>
> ----- Original Message -----
> From: "Allyn" <amalventano@sc.rr.com>
> To: "Ryan Ruggles" <ryanruggles@uniserve.com>; <scirocco-l@scirocco.org>
> Sent: Wednesday, September 17, 2003 5:30 PM
> Subject: Re: OT:huge sudden vibration(broken motor mount?)
>
>
> > im guessing your passenger side mount just bit it. the vibration should
> peak
> > at ~3k rpm, and make the rear view mirror vibrate like hell. the reason
i
> > say passenger side is because the front/rear wouldnt cause vibration
> reving
> > in neutral, and the driver side mount doesnt have enough weight on it to
> > cause the huge vibration you describe.
> > hth
> > Al
> >
> > ----- Original Message -----
> > From: "Ryan Ruggles" <ryanruggles@uniserve.com>
> > To: <scirocco-l@scirocco.org>
> > Sent: Wednesday, September 17, 2003 1:20 PM
> > Subject: OT:huge sudden vibration(broken motor mount?)
> >
> >
> > > My girlfriend was driving my rabbit GTI and she heard a cluck and then
> > huge
> > > vibrations when the engine was revved up.  That's what she said
anyways.
> > So
> > > I go outside to check it out and holy SHITE!!!  It seems fine when
it's
> > > idling but as soon as you touch the gas peddle and rev the engine, the
> > whole
> > > car vibrates and it's SUPER loud.  I popped the hood to listen to the
> > engine
> > > itself and it sounds normal. It was dark and I couldn't really see
> > anything.
> > > I am thinking fubar'd motor mount.  Anyone have any other ideas.
> > >
> > > Thanks
> > >
> > > Ryan
> > >
> > >
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> >
> >
>
>
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