[DeTomaso] Clutch Pedal Spring

Tue Jul 28 23:52:52 EDT 2009

Well there you have it folks.  There is -no- spring on my clutch pedal.  
I can tell there -was- one at one time, as there is a wear mark right 
where it would have been making contact.  So, I think I'll take one 
listers suggestion, drill a couple of small holes and run a strong 
spring to it.  Well, not too strong that is.

Thanks all for the guidance,
Asa Jay

Asa Jay Laughton, MSgt, USAFR, Retired

& Shelley Marie
Spokane, WA

1971 Mach I Mustang  [ASA JAY]
1973 Pantera L 5533  [ASASCAT]

******************************     
http://www.asajay.com
http://www.teampanteraracing.com

asajay at asajay.com wrote:
> I don't recall -any- spring on the pedal.  Weird, I'm going to have to  
> look into that.
>
> Thanks for the suggestion on the slave adjustment, that sounds more  
> like the ticket I'm looking for.
>
> Asa Jay
>
> Quoting forestg at att.net:
>
>   
>>  Asa,
>> It sounds like your new clutch disc is thicker than the original   
>> thus moving the release fingers in farther. You could probably   
>> remove the arm from the throwout shaft and move it one spline closer  
>>  to the front. This should allow you to set free travel with the  
>> stop  screw. This might solve the whole problem but if the pedal  
>> still  does not return just get a coil spring at the hardware store  
>> and  drill a small hole in the pedal and hook the spring to the  
>> metal  framing under the dash. The original springs are tough to  
>> change and  will just break again anyway.
>> Good luck,
>> Forest
>>  -------------- Original message from "Tomas Gunnarsson"   
>> <guson at home.se>: --------------
>>
>>
>>     
>>> Asa Jay,
>>> You have two issues it seems. The master spring can not be relied   
>>> on to return the pedal. There's a return spring on the pedal, it's   
>>> there for a reason. With the master cylinder out, the pedal must be  
>>>  able to return to the stop on its own. In your case it's obvoius   
>>> that you have some kind of pedal travel issue as you have to pull   
>>> the pedal against the stop to fill the master from the reservoir.   
>>> You also mention pulling the slave out until it almost makes   
>>> contact with the throwout bearing. This is a similar problem, you   
>>> should be at that
>>> point at rest with the slave. You have a slave cylinder adjustment issue.
>>>
>>> Tomas
>>>
>>> ----- Original Message -----
>>> From: "Asa Jay Laughton"
>>> Cc: "Tomas Gunnarsson"
>>> Sent: Tuesday, July 28, 2009 5:01 AM
>>> Subject: Re: [DeTomaso] CNC Clutch, problems bleeding
>>>
>>>
>>>       
>>>> Bench bleed it, did that already.
>>>> Push it down to make sure the ports are lined up.  Huh?  If anything,
>>>> the rubber cup is covering the ports from the pedal already being
>>>> depressed.  Anyway, it seems to be a combination of problems, I think.
>>>>
>>>> I picked up a vacuum pump brake bleeder kit from Napa.  Hooked it all up
>>>> and got NOWHERE.  Nothing was moving, fluid level the same, and I -know-
>>>> the lines were clear as I blew it all out with compressed air.
>>>>
>>>> So I reach under the dash and pull the pedal about a quarter inch toward
>>>> the back of the car.  Shlluuuuurk, out went the fluid.  Refill the
>>>> reservoir, pump the vacuum again, repeat.  Eventually I got the entire
>>>> line filled.  Now, it -may- still have some air in it, I'm not sure.
>>>> But here is the thing.
>>>>
>>>> At rest, the slave likes to come a long way back.
>>>> At rest, the pedal isn't quite all the way up.
>>>> When pressing in the pedal, I don't get the kind of resistance I expect,
>>>> and not enough pedal travel to release the clutch.
>>>>
>>>> If I pull the pedal all the way up, then go to the slave and pull it out
>>>> so it's just ready to contact the throw-out bearing, I can depress the
>>>> clutch and get some good release action, and see the clearance open up
>>>> at the disc.  So what gives?
>>>>
>>>> The master only springs back from spring pressure inside the master.
>>>> Out of the car, it comes all the way back against the snap ring just
>>>> fine.  In the car?  I'm not so sure.  The slave has this massive spring
>>>> that pulls back the lever, but even the adjusting screw is all the way
>>>> in and still doesn't touch the stop.  There is about a half inch in
>>>> between the stop and the adjusting screw, so I can't get it to "rest"
>>>> farther out because there is nothing to stop it, (at least not yet).
>>>>
>>>> Photos would probably be good, but I've not taken any yet.  I'm at that
>>>> "need the experience of others" point.
>>>>
>>>> Thanks,
>>>> Asa Jay
>>>>
>>>> Asa Jay Laughton, MSgt, USAFR, Retired
>>>>
>>>> & Shelley Marie
>>>> Spokane, WA
>>>>
>>>> 1971 Mach I Mustang  [ASA JAY]
>>>> 1973 Pantera L 5533  [ASASCAT]
>>>>
>>>> ******************************
>>>> http://www.asajay.com
>>>> http://www.teampanteraracing.com
>>>>
>>>>
>>>>
>>>>         
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