[DeTomaso] Charlie’s clutch

Fri Apr 10 23:23:58 EDT 2020


> On Apr 10, 2020, at 20:12, Thomas Törnblom <thomas at hax.se> wrote:
> 
> Hi Mike,
> 
> I’m using a stock throwout setup but with a long throw slave cylinder. No shimming or adjustment needed. The clutch is very easy to operate even with a long throw cylinder and the extra stroke makes for easy gear shifts 

>>>Yes, the higher effort of the long throw is offset by the lighter effort of the diaphragm clutch.
> 
> >I think my clutch has passed through your house btw 😊

>>>Yours and everybody else’s in Europe it seems! :)

Mike
> 
>> 10 apr. 2020 kl. 23:49 skrev Mike Drew <MikeLDrew at aol.com>:
>> 
>> Thomas,
>> 
>> That’s fascinating. We have always been told that a conventional 351C clutch won’t work in a Pantera due to the higher finger height which causes it to strike the inside of the bellhousing. But perhaps that’s not true for diaphragm clutches like this?
>> 
>> What did you use for your throwout bearing? Did you have to shim it forward because of the lower finger height?
>> 
>> The Centerforce website only gives a single application for this part number—Ford E-100 econoline Van. But the Summit website shows applications for virtually every Ford car and truck of the period. 
>> 
>> Thanks!
>> 
>> Mike
>> 
>> Sent from my iPad
>> 
>>>> On Apr 10, 2020, at 03:30, Thomas Törnblom <thomas at hax.se> wrote:
>>> 
>>> This is the one I’m  currently using with my Fidanza flywheel.
>>> 
>>> <image0.jpeg>
>>> 
>>> 
>>> $375 from Summit. 
>>> 
>>> Thomas
>>> 
>>>>> 10 apr. 2020 kl. 09:28 skrev Thomas Törnblom <thomas at hax.se>:
>>>> 
>>>> No, if you use the standard 351C Centerforce clutch instead of the Pantera specific one, which works fine, there is ino machining required. I’m currently using that.
>>>> 
>>>> I had a Pantera specific one and drilled the flywheel myself but as I had severe vibrations I suspected that that was the problem and replaced it with the standard 351C CF clutch, with no improvement.
>>>> Turned out that the balancing the machine shop had done was totally wrong and I used another crank and the problem is gone.
>>>> 
>>>> Thomas
>>>> 
>>>>>> 10 apr. 2020 kl. 02:00 skrev Mike Drew via DeTomaso <detomaso at server.detomasolist.com>:
>>>>> 
>>>>> Because it requires expensive (in Spain) machine work to redrill the flywheel. If they get it even a bit wrong the car will shake like a wet dog. 
>>>>> 
>>>>> Or, the purchase of a $600 Centerforce aluminum flywheel.  I don’t know if they offer an iron version or not. 
>>>>> 
>>>>> The fact that they sell a clutch that requires so much extra cost and/or effort because they can’t be bothered to make it correctly, rules them out IMHO.  Their clutch itself is quite good (although the whole weights thing is a total BS gimmick they came up with to circumvent McLeod’s patent on their diaphragm clutch) and if I had one in a car I certainly would feel perfectly fine with it. 
>>>>> 
>>>>> But I would never convert a car to use it, if I could help it. 
>>>>> 
>>>>> Mike
>>>>> 
>>>>> Sent from my iPad
>>>>> 
>>>>>>> On Apr 9, 2020, at 15:48, Thomas Törnblom <tipo874 at gmail.com> wrote:
>>>>>> 
>>>>>> Care to tell why Centerforce is out of the question?
>>>>>> 
>>>>>> Not trying to change anyone’s mind, just curious as I’m pleased with the ones I’ve used/am using.
>>>>>> 
>>>>>> Thomas
>>>>>> 
>>>>>>>> 9 apr. 2020 kl. 23:40 skrev Julian Kift <julian_kift at hotmail.com>:
>>>>>>> 
>>>>>>>    Mcleod Diaphragm, because you said he can't have a Centerforce
>>>>>>> 
>>>>>>> Julian
>>>>>>> __________________________________________________________________
>>>>>>> 
>>>>>>> From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of
>>>>>>> Mike Drew via DeTomaso <detomaso at server.detomasolist.com>
>>>>>>> Sent: Thursday, April 9, 2020 1:09 PM
>>>>>>> To: De Tomaso Forum <detomaso at server.detomasolist.com>
>>>>>>> Subject: [DeTomaso] Charlie's clutch
>>>>>>> 
>>>>>>> All,
>>>>>>> Since a Charlie is asleep on India I will ask another question on his
>>>>>>> behalf.
>>>>>>> He needs a new clutch, and will not be using a Centerforce so don't
>>>>>>> even ask.
>>>>>>> McLeod is the way to go. He has options of course.
>>>>>>> If he sticks with a three-finger clutch he can use an organic or
>>>>>>> dual-friction disc. These would be the simplest and least expensive
>>>>>>> alternative.
>>>>>>> If he switches to diaphragm style, that entails greater expense, not
>>>>>>> even considering the added cost of the purchase of an adjustable
>>>>>>> throwout bearing. He would also have to choose between organic or
>>>>>>> dual-friction disc.
>>>>>>> His motor is a 351-inch Cleveland with Aussie heads and a nice cam. So
>>>>>>> it has loads of torque and perhaps 400-425 hp. The car is exclusively
>>>>>>> street-driven and while the vast majority is highway cruising, he does
>>>>>>> beat on it on occasion.
>>>>>>> So: three-finger or diaphragm? Organic or dual-friction? He has four
>>>>>>> options with progressively greater costs, and his budget is not
>>>>>>> unlimited.
>>>>>>> Weigh in with your opinions as to what he should do, and why you think
>>>>>>> he should do what you suggest?
>>>>>>> Mike
>>>>>>> Sent from my iPad
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>