[DeTomaso] transaxle

Richard Greenblum Richard at richardgreenblum.com
Tue Nov 10 17:40:55 EST 2015


Tom,

Does the car rock back and forth a long way while in gear?  Mine did, and it
unfortunately turned out to be a very, very rare diff housing failure.  Mine
cracked, and I never mistreated the transaxle (no dropping the clutch, no
drag racing).

Richard
Austin, TX 


From:  DeTomaso <detomaso-bounces at poca.com> on behalf of deTomaso List
<detomaso at poca.com>
Reply-To:  "JDeRyke at aol. com" <JDeRyke at aol.com>
Date:  Tuesday, November 10, 2015 at 4:31 PM
To:  <tcabanski at tencom.com>, deTomaso List <detomaso at poca.com>
Subject:  Re: [DeTomaso] transaxle

   Sometimes,  broken bolt-heads will stick to the drain plug magnet or
   come out while draining the ZF- which slould be done yearly! Note you
   run the risk of destroying your ZF if one of the broken bolt heads gets
   caught in the ring & pinion mesh. At the very least, the bottom cover
   will be cracked as the bolthead squirts out at high velocity. At the
   worst, the whole case will open up like a walnut.... In a recent
   Newsletter, there were photos of an owner who found EIGHT broken bolts
   (out of ten total). This has been a well known problem since the
   Pantera was still being built. Mangustas were factory safety wired but
   very, very few Panteras.

   The two 11-1/2" long cross-bolts through the bearing side-plates and
   the lower cover keep one from removing the lower cover while the ZF is
   mounted in the car. And even if it was somehow removed, removing
   sheared ring gear bolts with no heads and properly torquing new US-made
   bolts in place, then safety wiring them all the while on your back
   under the car, is not an easy task. Remove the ZF and do this on the
   bench.

   -----Original Message-----
   From: Tom Cabanski <tcabanski at tencom.com>
   To: detomaso <detomaso at poca.com>
   Sent: Tue, Nov 10, 2015 1:31 pm
   Subject: [DeTomaso] transaxle
Have always heard an occasionally clunk when I'm waiting at a stop
   light
with the car in neutral.

   Thought it was a bad universal joint, but
checking them seems to show
   they are good & tight.

   I now think that
the ring gear bolts are loose or that one or more of
   the bolt heads may have
sheared off.

   They have not been safety wired.


   Is there an easy way
to confirm?

   Look for shaving on the bottom drain plug on in the gear
oil?

   Can you remove the anything while it is in the car to confirm?


Tom

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-------------- next part --------------
   Tom,
   Does the car rock back and forth a long way while in gear?  Mine did,
   and it unfortunately turned out to be a very, very rare diff housing
   failure.  Mine cracked, and I never mistreated the transaxle (no
   dropping the clutch, no drag racing).
   Richard
   Austin, TX

   From: DeTomaso <[1]detomaso-bounces at poca.com> on behalf of deTomaso
   List <[2]detomaso at poca.com>
   Reply-To: "JDeRyke at aol. com" <[3]JDeRyke at aol.com>
   Date: Tuesday, November 10, 2015 at 4:31 PM
   To: <[4]tcabanski at tencom.com>, deTomaso List <[5]detomaso at poca.com>
   Subject: Re: [DeTomaso] transaxle

      Sometimes,  broken bolt-heads will stick to the drain plug magnet or
      come out while draining the ZF- which slould be done yearly! Note
   you
      run the risk of destroying your ZF if one of the broken bolt heads
   gets
      caught in the ring & pinion mesh. At the very least, the bottom
   cover
      will be cracked as the bolthead squirts out at high velocity. At the
      worst, the whole case will open up like a walnut.... In a recent
      Newsletter, there were photos of an owner who found EIGHT broken
   bolts
      (out of ten total). This has been a well known problem since the
      Pantera was still being built. Mangustas were factory safety wired
   but
      very, very few Panteras.
      The two 11-1/2" long cross-bolts through the bearing side-plates and
      the lower cover keep one from removing the lower cover while the ZF
   is
      mounted in the car. And even if it was somehow removed, removing
      sheared ring gear bolts with no heads and properly torquing new
   US-made
      bolts in place, then safety wiring them all the while on your back
      under the car, is not an easy task. Remove the ZF and do this on the
      bench.
      -----Original Message-----
      From: Tom Cabanski <[6]tcabanski at tencom.com>
      To: detomaso <[7]detomaso at poca.com>
      Sent: Tue, Nov 10, 2015 1:31 pm
      Subject: [DeTomaso] transaxle
   Have always heard an occasionally clunk when I'm waiting at a stop
      light
   with the car in neutral.
      Thought it was a bad universal joint, but
   checking them seems to show
      they are good & tight.
      I now think that
   the ring gear bolts are loose or that one or more of
      the bolt heads may have
   sheared off.
      They have not been safety wired.
      Is there an easy way
   to confirm?
      Look for shaving on the bottom drain plug on in the gear
   oil?
      Can you remove the anything while it is in the car to confirm?
   Tom
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