[DeTomaso] Techno question:Clutch&Slave II

adin at frontier.net adin at frontier.net
Fri Oct 19 09:28:32 EDT 2007 

Sounds like a linkage issue to me.

Does the clutch work properly for the gears you can find?  If so, this  
points to linkage.

Having never fooled (its a fool that messes with womething not  
completely understood) with the linkage, I can't guess where the  
mismatch is, but the differential Dx leads me to this conclusion.

Wish I could type the magic words for you . . . .


David in Durango


Quoting Charles Engles <cengles at cox.net>:

> Dear Larry and David and Forum,
>
>
>                      There is no grinding.    Once warm and at freeway
> speeds, I cannot physically get the shift lever to make the right and
> up movement into fourth or down into fifth.   If I really finagle it,
> then it can go into "fifth", but it is actually third by rpm readings.
>  No grinding.   Reverse, First, Second and Third are reliably there but
> fourth and fifth *silently* disappear in a couple of miles.
>
>
>                     Could it be....the shift linkage is out of wack?
>
>
>                                              I appreciate the cyber
> help, Chuck Engles
>
>
>
>
> ----- Original Message ----- From: <adin at frontier.net>
> To: <larry at ohiotimecorp.com>
> Cc: <detomaso at realbig.com>
> Sent: Thursday, October 18, 2007 9:01 PM
> Subject: Re: [DeTomaso] Techno question:Clutch&Slave II
>
>
>> Good point, but I'm locked in now.
>>
>> (and hope he meant it wouldn't go in, not was grinding - he didn't say
>> grinding, did he?)
>>
>>
>> David, from the land of the Rockies?
>>
>>
>> Quoting Larry - Ohio Time Corp <larry at ohiotimecorp.com>:
>>
>>> David,
>>>
>>> I guess it would matter if by not going in he means it grinds (I   
>>> am correct)
>>> or it does not find the gear at all (the rest of the forum is right).
>>>
>>> What say ye Chuck?
>>>
>>> Larry (go tribe) - Cleveland
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
>>> Behalf Of adin at frontier.net
>>> Sent: Thursday, October 18, 2007 4:06 PM
>>> To: detomaso at realbig.com
>>> Subject: Re: [DeTomaso] Techno question:Clutch&Slave II
>>>
>>> I'm in the Gray Forrest camp - it also shifts, does it not, r/1/2/3 when
>>> hot?
>>>
>>> In my little world, all gears points to clutch whereas some gears
>>> indicates a linkage issue.
>>>
>>> That's my final answer and I'm locking it in!
>>>
>>> David in Durango
>>>
>>>
>>>
>>> Quoting Larry - Ohio Time Corp <larry at ohiotimecorp.com>:
>>>
>>>> Gray and Forrest,
>>>>
>>>> But, and like my Ante Bertha it's a big Butt.
>>>>
>>>> 1. Chuck still has only 20 thousands clearance at the clutch/flywheel.
>>>>
>>>> 2. It shifts fine when cold.
>>>>
>>>> Hmmmmm?
>>>>
>>>> Larry - Cleveland
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
>>> On
>>>> Behalf Of Gray Gregory
>>>> Sent: Thursday, October 18, 2007 3:37 PM
>>>> To: SOBill at aol.com; cengles at cox.net
>>>> Cc: detomaso at realbig.com
>>>> Subject: Re: [DeTomaso] Techno question:Clutch&Slave II
>>>>
>>>> Chuck,
>>>>
>>>> I'm inclined to agree with Forrest. If you're able to get some gears and
>>>> not others that tells me you are getting clutch disengagement
>>>> (especially since reverse is one of those gears) so the problem is more
>>>> likely in the shift linkage. My guess is they failed to get the shift
>>>> rod back in the same place on the ZF it was prior to removal.
>>>>
>>>> Gray
>>>>
>>>> -----Original Message-----
>>>> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
>>>> On Behalf Of SOBill at aol.com
>>>> Sent: Thursday, October 18, 2007 12:55 AM
>>>> To: cengles at cox.net
>>>> Cc: detomaso at realbig.com
>>>> Subject: Re: [DeTomaso] Techno question:Clutch&Slave II
>>>>
>>>> Chuck,
>>>>
>>>> Is the release arm in the right place?
>>>>
>>>> Here's how to tell. Remove the lever return spring. Move the  release
>>>> arm
>>>> until you fell the throwout bearing come to stop against  the pressure
>>>> plate
>>>> release fingers. The release arm should be forward  of straight up so
>>>> that it will
>>>> go thru straight up when the clutch is being  released. If the release
>>>> arm is
>>>> not forward of straight up, mark the release arm  and the shaft with a
>>>> position reference line, remove the arm from the  shaft, rotate the arm
>>>> one spline
>>>> forward, and reinstall the arm. The  purpose of this positioning of the
>>>> release
>>>> arm is to ensure that the slave  cylinder movement moves the release arm
>>>> thru
>>>> the maximum distance when the  clutch pedal is pressed.
>>>>
>>>> Next set the freeplay between the throwout bearing and the  clutch
>>>> release
>>>> fingers and set the stop bolt.
>>>>
>>>> Next adjust the rod into the slave cylinder.
>>>>
>>>> Then rehook the spring.
>>>>
>>>> Depending on which ZF you have, they require different clutch  friction
>>>> discs
>>>> because they have different input shafts.
>>>>
>>>> The -1 ZFs have a 1 1/8 inch diameter shaft with 10  splines.
>>>>
>>>> The -2 ZFs have a 1 1/16 inch diameter shaft with 10  splines.
>>>>
>>>> These shaft and spline differences are small, but could become
>>>> important
>>>> when things are cold or hot.
>>>>
>>>> In addition, the clutch friction discs should have the Marcel  springs
>>>> (those
>>>> wavy things) between the friction pads and the center metal disc  of the
>>>>
>>>> friction plate removed. This makes the clutch disc thinner and is what
>>>> DeTomaso
>>>> did at the factory. Depending on what type of pressure plate you have,
>>>> you may
>>>> be able to visually verify the status of the Marcels.
>>>>
>>>> Have fun,
>>>>
>>>> SOBill  Taylor
>>>> sobill at aol.com
>>>>
>>>>
>>>>
>>>> ************************************** See what's new at
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