Al:
I must be short on caffeine, what is the difference? BTW, I meant to say
"Drive shaft" not "Crank shaft" in my note (force of habit). Question:
Aren't the diff, transmission and shaft all supposed to be independently
balanced? The result from your experience would seem to say that the factory
balanced them when all was assembled and bolted together. I am beginning to
foresee a summer spend with the insides out of my cockpit :^(
Cheers,
Mark
-----Original Message-----
From: Paula J. Graffam [mailto:pjgraffam@juno.com]
Sent: Monday, March 24, 2003 8:28 PM
To: mhooper@pix-cinema.com
Cc: 6pack@autox.team.net
Subject: Re: Prop/driveshaft vibration
Hi Mark,
Correction . . . I oriented the diff. 180 degrees to the shaft NOT the
shaft to the differential. Sorry.
Al
On Mon, 24 Mar 2003 18:15:42 -0500 Mark Hooper <mhooper@pix-cinema.com>
writes:
> Well Al, you've got me. There must be some simple explanation, but I
> don't
> know what it is. By the way, when you said you rotated your crank
> shaft 180
> degreees does that mean relative to the transmission, the
> differential or
> one end of the shaft to the other?
>
> I have a hard vibration too and am trying to eliminate it.
>
> Mark
>
>
> -----Original Message-----
> From: Paula J. Graffam [mailto:pjgraffam@juno.com]
> Sent: Monday, March 24, 2003 6:12 PM
> To: mhooper@pix-cinema.com
> Cc: 6pack@autox.team.net
> Subject: Re: Prop/driveshaft vibration
>
>
> Hi Mark,
>
> I really don't have anything different with my speedo. The cable
> conversion is straight forward . . . it's simply connected to the
> right
> side of the tranny and is braced accordingly and tracks like the
> original. I don't see how the vibration could affect my speedo.
>
> Al
>
> On Mon, 24 Mar 2003 17:57:48 -0500 Mark Hooper
> <mhooper@pix-cinema.com>
> writes:
> > Al:
> > The only possible cause would be that the link between the speedo
> > cable and
> > the transmission was being affected by the vibration. That would
> > indicate
> > some sort of magnetic follower gear in the transmission which
> seems
> > amazingly unlikely for a mechanical speedo. What sort of
> speedometer
> > setup
> > do you have in the conversion?
> >
> > Mark Hooper
> > 1972 TR6
> >
> >
> > -----Original Message-----
> > From: Paula J. Graffam [mailto:pjgraffam@juno.com]
> > Sent: Monday, March 24, 2003 5:28 PM
> > To: 6pack@autox.team.net
> > Subject: Prop/driveshaft vibration
> >
> >
> > Hi Listers,
> >
> > After converting my tranny(van den Akker) I noticed a definate
> > vibration
> > at 60mph@ 3000+ rpm. Some call it harmonic vibration. After
> > talking to
> > Herman, he advised me to rotate the driveshaft 180degrees ( maybe
> I
> > incorrectly installed the shaft).
> >
> > Well it worked . . . much to my relief!!! I guess it's a common
> > troubleshooting technique. However, I also noticed that my rpms
> > DECREASED especially in 4th and 5th gears. I'm not sure why this
> > is.
> > Mind you now, I'm NOT complaining.
> > I'm now doing about 26k at 60mph and just about 29k at 70mph.
> >
> > Does anyone know why I'm doing better on the rpms AFTER the
> > correction?
> >
> > Regards,
> >
> > Al Graffam
> >
> > ________________________________________________________________
> >
>
>
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