[DeTomaso] suggestion re: vibration

Sun Jun 24 16:57:32 EDT 2018

Good point. input and output must have the same angle. Input angle is always 0 degrees from the gearbox. Very, very seldom the rear axle is adjusted exact to 0 degrees. That causes lots of vibrations. Can be seen easily on damaged decklid corners. A swap to CV joints solves all these problems. I have never seen damaged decklid corners on CV joint driven Panteras. Vibrations eat power. A swap to CV joints are the cheapest HP on the wheels. SACC Restaurations have a nice set for a reasonable price.

Roland Jaeckel

Am 24.06.2018 um 22:38 schrieb Joseph F. Byrd, Jr.:

Here is an youtube demstrating u joint jerking.  Phasing is shown at 02:00
https://www.youtube.com/watch?v=gmV4qwLfOMY

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf Of Christer Eriksson
Sent: Sunday, June 24, 2018 16:21 PM
To: Mike Drew
Cc: detomaso at server.detomasolist.com<mailto:detomaso at server.detomasolist.com>; laurieferrari at aol.com<mailto:laurieferrari at aol.com>; unnerstad.ekelundatgmail.com at aol.com<mailto:unnerstad.ekelundatgmail.com at aol.com>
Subject: Re: [DeTomaso] suggestion re: vibration

I have not disembeld the shafts but previous Owner may have? I belive this could be the issue and I guess I need to dig further into it. At the same time I will Inspect the Engine joints to be secure.
Thanks for all your advice!
Best regards Christer

I would defenitly come back when the issue is solved!

sön 24 juni 2018 kl. 06:29 skrev Mike Drew <MikeLDrew at aol.com><mailto:MikeLDrew at aol.com>:

Christer,

Did you dismantle the two halves of the driveshafts? If so, and you
didn’t get them assembled exactly as they had been before, you could
have easily created an imbalance or out-of-phase condition.

Mike

Sent from my iPad

On Jun 23, 2018, at 12:21, Christer Eriksson <

unnerstad.ekelund at gmail.com<mailto:unnerstad.ekelund at gmail.com>> wrote:

  The halfshaft should be individualy balanced, need to rebalance?

  Could it be that they need to be rotated 180 degrees=reclocked?

  Thanks

  lAP:r 23 juni 2018 kl. 18:50 skrev Laurie Ferrari via DeTomaso
  <[1]detomaso at server.detomasolist.com><mailto:[1]detomaso at server.detomasolist.com>:

Reliable source suggests you most likely need to reclock your half

    shafts!A  Th
    ey are probably not clocked correctly.
    23 juni 2018 kl. 16:28 skrev Christer Eriksson <[1]unnerstad.ekelund
    at [2]gmail.co
    m>:

A  A Dear forum,

A  A During acceleration Iave got heavy vibrations in my #2783,

    nothing

A  A during de-accelerating nor continious speed. So heavy that the

    rearview

A  A mirror turns....

A  A Any ideas would be welcome!

A  A Thanks ChristerA

!DSPAM:5b2e59371181377914284!

    References
    A  A 1. [3]http://server.detomasolist.com/mailman/listinfo/detomaso
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-------------- next part --------------
   Good point. input and output must have the same angle. Input angle is
   always 0 degrees from the gearbox. Very, very seldom the rear axle is
   adjusted exact to 0 degrees. That causes lots of vibrations. Can be
   seen easily on damaged decklid corners. A swap to CV joints solves all
   these problems. I have never seen damaged decklid corners on CV joint
   driven Panteras. Vibrations eat power. A swap to CV joints are the
   cheapest HP on the wheels. SACC Restaurations have a nice set for a
   reasonable price.

   Roland Jaeckel

   Am 24.06.2018 um 22:38 schrieb Joseph F. Byrd, Jr.:

Here is an youtube demstrating u joint jerking.  Phasing is shown at 02:00
[1]https://www.youtube.com/watch?v=gmV4qwLfOMY

-----Original Message-----
From: DeTomaso [[2]mailto:detomaso-bounces at server.detomasolist.com] On Behalf Of
 Christer Eriksson
Sent: Sunday, June 24, 2018 16:21 PM
To: Mike Drew
Cc: [3]detomaso at server.detomasolist.com; [4]laurieferrari at aol.com; [5]unnerstad.
ekelundatgmail.com at aol.com
Subject: Re: [DeTomaso] suggestion re: vibration

I have not disembeld the shafts but previous Owner may have? I belive this could
 be the issue and I guess I need to dig further into it. At the same time I will
 Inspect the Engine joints to be secure.
Thanks for all your advice!
Best regards Christer

I would defenitly come back when the issue is solved!

soen 24 juni 2018 kl. 06:29 skrev Mike Drew [6]<MikeLDrew at aol.com>:

Christer,

Did you dismantle the two halves of the driveshafts? If so, and you
didn't get them assembled exactly as they had been before, you could
have easily created an imbalance or out-of-phase condition.

Mike

Sent from my iPad

On Jun 23, 2018, at 12:21, Christer Eriksson <

[7]unnerstad.ekelund at gmail.com> wrote: