[DeTomaso] Ruined rack
marshallgsmith
marshallgsmith at sbcglobal.net
Sun Apr 26 23:06:37 EDT 2020
That Dino guy should have gone to the famed Ferrari mechanic, Mike Drew!Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Mike Drew via DeTomaso <detomaso at server.detomasolist.com> Date: 4/26/20 4:04 PM (GMT-08:00) To: "Joseph F Byrd, Jr" <byrdjf at embarqmail.com> Cc: DeTomaso Mail List <detomaso at server.detomasolist.com> Subject: Re: [DeTomaso] Ruined rack Joseph,The backlash between the ring and pinion gears is controlled by a plunger with a coil-bound spring. The pressure on the back of the spring comes from a cover secured with two bolts. A series of almost impossibly thin shims between the underside of the cover and the rack housing sets the preload. Removing even one of these shims can have a pronounced effect on the steering. In rare instances it can remove unwanted slop, but most of the time it creates binding. Bad news. The fool who rebuilt this one got rid of ALL of the shims!MikeSent from my iPad> On Apr 26, 2020, at 15:52, Joseph F Byrd, Jr <byrdjf at embarqmail.com> wrote:> > Any ideal what the problem was that initially caused the "hard" steering. Was it possibly the pinion was too close to the rack?> > -----Original Message-----> From: DeTomaso <detomaso-bounces at server.detomasolist.com> On Behalf Of Mike Drew via DeTomaso> Sent: Sunday, April 26, 2020 6:16 PM> To: De Tomaso Forum <detomaso at server.detomasolist.com>> Subject: [DeTomaso] Ruined rack> > Guys,> > I’m doing a pandemic garage cleanup and came across my box of steering rack wreckage. > > Years ago I found out about a poor slob with a Ferrari 308 GT4 Dino. He had paid $1500 (!!!) to have a ‘professional Ferrari mechanic) rebuild his rack. When he got it back he found the car very difficult to steer, but he was told it would break in over time so he kept driving it. He drove it sporadically for a couple of years and it never got better, until one day one of his tie rods snapped into two pieces (!!!) and he went off the road, fortunately with little damage. > > Rick Moseley told him to send it to me, since it’s the same as the Pantera rack. > > I was astounded when I got it. Both tie rods had been so dramatically overtightened that they could not be moved AT ALL. When the suspension went up and down, the tie rods apparently BENT instead of moving! The rack was so tight that I couldn’t turn it either. I had to hold it in a vice and use vice-grips on the pinion and even then could barely move it.> > After I got the tie rods off, I took the rack apart and was astonished to see what had happened to the rack teeth:> > > _______________________________________________> > > Detomaso Email List is not managed by POCA> Posted emails must not exceed 1.5 Megabytes> DeTomaso mailing list> DeTomaso at server.detomasolist.com> http://server.detomasolist.com/mailman/listinfo/detomaso> > To manage your subscription (change email address, unsubscribe, etc.) use the links above.> > Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages._______________________________________________Detomaso Email List is not managed by POCAPosted emails must not exceed 1.5 MegabytesDeTomaso mailing listDeTomaso at server.detomasolist.comhttp://server.detomasolist.com/mailman/listinfo/detomasoTo manage your subscription (change email address, unsubscribe, etc.) use the links above.Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.
-------------- next part --------------
That Dino guy should have gone to the famed Ferrari mechanic, Mike
Drew!
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------
From: Mike Drew via DeTomaso <detomaso at server.detomasolist.com>
Date: 4/26/20 4:04 PM (GMT-08:00)
To: "Joseph F Byrd, Jr" <byrdjf at embarqmail.com>
Cc: DeTomaso Mail List <detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Ruined rack
Joseph,
The backlash between the ring and pinion gears is controlled by a
plunger with a coil-bound spring. The pressure on the back of the
spring comes from a cover secured with two bolts. A series of almost
impossibly thin shims between the underside of the cover and the rack
housing sets the preload.
Removing even one of these shims can have a pronounced effect on the
steering. In rare instances it can remove unwanted slop, but most of
the time it creates binding. Bad news.
The fool who rebuilt this one got rid of ALL of the shims!
Mike
Sent from my iPad
> On Apr 26, 2020, at 15:52, Joseph F Byrd, Jr <byrdjf at embarqmail.com>
wrote:
>
> Any ideal what the problem was that initially caused the "hard"
steering. Was it possibly the pinion was too close to the rack?
>
> -----Original Message-----
> From: DeTomaso <detomaso-bounces at server.detomasolist.com> On Behalf
Of Mike Drew via DeTomaso
> Sent: Sunday, April 26, 2020 6:16 PM
> To: De Tomaso Forum <detomaso at server.detomasolist.com>
> Subject: [DeTomaso] Ruined rack
>
> Guys,
>
> I'm doing a pandemic garage cleanup and came across my box of
steering rack wreckage.
>
> Years ago I found out about a poor slob with a Ferrari 308 GT4 Dino.
He had paid $1500 (!!!) to have a `professional Ferrari mechanic)
rebuild his rack. When he got it back he found the car very difficult
to steer, but he was told it would break in over time so he kept
driving it. He drove it sporadically for a couple of years and it never
got better, until one day one of his tie rods snapped into two pieces
(!!!) and he went off the road, fortunately with little damage.
>
> Rick Moseley told him to send it to me, since it's the same as the
Pantera rack.
>
> I was astounded when I got it. Both tie rods had been so dramatically
overtightened that they could not be moved AT ALL. When the suspension
went up and down, the tie rods apparently BENT instead of moving! The
rack was so tight that I couldn't turn it either. I had to hold it in
a vice and use vice-grips on the pinion and even then could barely move
it.
>
> After I got the tie rods off, I took the rack apart and was
astonished to see what had happened to the rack teeth:
>
>
> _______________________________________________
>
>
> Detomaso Email List is not managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> DeTomaso at server.detomasolist.com
> http://server.detomasolist.com/mailman/listinfo/detomaso
>
> To manage your subscription (change email address, unsubscribe, etc.)
use the links above.
>
> Members who post to this list grant license to the list to forward
any message posted here to all past, current, or future members of the
list. They also grant the list owner permission to maintain an archive
or approve the archiving of list messages.
_______________________________________________
Detomaso Email List is not managed by POCA
Posted emails must not exceed 1.5 Megabytes
DeTomaso mailing list
DeTomaso at server.detomasolist.com
http://server.detomasolist.com/mailman/listinfo/detomaso
To manage your subscription (change email address, unsubscribe, etc.)
use the links above.
Members who post to this list grant license to the list to forward any
message posted here to all past, current, or future members of the
list. They also grant the list owner permission to maintain an archive
or approve the archiving of list messages.
More information about the DeTomaso
mailing list