Check the tie rods and tie rod ends. Damage and wear to these parts can
also cause a front end shimmy.
----- Original Message -----
From: "Phil Roettjer" <Phil.Roettjer@quantum.com>
To: <morgans@autox.team.net>
Sent: Tuesday, April 25, 2000 10:31 AM
Subject: RE: exhaust manifold and more
> Gerjan,
> It sounds like you may have the dreaded sliding pillar wobble on your
front
> end. You should try all the alignment and tire balancing things first. In
> addition check to make sure the damper blades are set up properly. These
are
> the flat blades that run from the spindle assembly to the chassis. But if
> all this does not work you will need to rebuild your front end suspension
> (sliding pillars). I have not done this myself, but I am sure there are
many
> on the list who have and can comment. To rebuild them you need to replace
> the king pins and then rebush the sliding spindle assembly. The problem is
> that with too much wear this setup has a harmonic resonance that get
excited
> at about 50 MPH. I have heard people describe the vibration as being so
> severe at speeds above 50 that it feels like the car will shake apart. And
> by the way driving it in this condition is VERY dangerous. So you must
> figure out what is wrong and get it fixed.
>
> If you can get a copy of Fred Sisson's "The Morgan Bedside Reader" it is
all
> spelled out there. Fred is on this list, but I believe he is currently on
a
> trip to Australia.
>
> Good luck,
> Phil Roettjer
> Upton, Ma
> 67 +4
>
> > -----Original Message-----
> > From: Gerjan van de Walle [SMTP:gerjan.vandewalle@village.uunet.be]
> > Sent: Monday, April 24, 2000 3:12 PM
> > To: morgans@autox.team.net
> > Subject: exhaust manifold and more
> >
> > Hi all,
> > I have recently taken over a 1974 +8 from my dad, who owned it since
> > new. It is still in original condition, original paint, leather interior
> > etc. Technically however some things have to be improved. I would like
> > to consult all you out there on a few things:
> >
> > 1. Both exhaust manifolds each have a large crack in the middle, almost
> > splitting the manifold in two halves. Now I was told that the manifolds
> > of this particular type were not available anymore. There are two
> > numbers on each manifold:
> > 612601 and K WYF J5090.
> > Are these manifolds still available??? And if so, where can I buy them?
> >
> > Are there any major parts suppliers in the UK or on the European
> > continent?
> >
> > 2. The car also vibrates enormously at around 80 km/h (50 m/h). The
> > whole front of the car vibrates vigourously and it really dangourous to
> > to drive at that speed. The wheels have been balanced, the front
> > suspension has been overhauled, but without success. Now a damper has
> > been mounted between steering arm and chassis and this helpes a bit. But
> > the real ploblem is still there. Does anyone have a clue?
> >
> > Gerjan van de Walle
> > Belgium
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