[DeTomaso] Clutch master swap out

Will Kooiman will.kooiman at gmail.com
Fri Apr 12 07:54:31 EDT 2013


Note on effort:

A review on the 71 Boss 351 complained about the clutch pedal.  They felt it was too light.

I like my clutch pedal.  It is a long throw, with a diaphragm pressure plate.

Sent from my iPhone

On Apr 12, 2013, at 1:27 AM, Charles McCall <charlesmccall at gmail.com> wrote:

> 1) I replaced my stock slave with a long throw last year and was unable to
> tell the difference. If there was a difference, then it was not enough to
> be a nuicance or change the nature of the action.
> 2) I went with a long throw to give myself more margin for error or wear. I
> don't think I would have thrown away a perfectly good slave to replace it
> with a long throw, but since my slave failed and I had to buy a new one, I
> felt it was better to buy a long throw than a stock. I felt more
> comfortable having a little more clearance.
> 3) Clutch effort is more influenced by clutch type (Diaphragm, 3-finger,
> etc) or effort reduction kit than by long throw/stock slave cylinder. In
> the same car, I have experienced significantly different pedal effort based
> on clutch type. Night and Day different. Again, I can't honestly say that I
> noticed ANY difference in effort with the long throw slave. But I do spend
> a lot of time in the gym ;-)
> 
> 
> On Fri, Apr 12, 2013 at 8:12 AM, <JDeRyke at aol.com> wrote:
> 
>> 
>> In a message dated 4/11/13 12:25:07 PM, mikael_hass at mail.tele.dk writes:
>> 
>> 
>>> IMHO a long throw is not necessary if everything works as designed. That
>>> said, I've never driven a Pantera with a long throw slave, are they
>>> noticeably harder to push down? Is it a real nuisance or does one get
>> used
>>> to it quickly?
>> Your first sentance is key, my friend! 40+ years on from brand new, things
>> are NOT the same as designed, particularly the linkage which is all
>> metal-to-metal, has no provision for lube and so wears, reducing travel at
>> the
>> clutch. Simple check: if one can slide an 0.040" thick flat feeler gauge
>> in thru
>> the bellhousing access hole, between the flywheel & clutch plate with a
>> helper pushing the clutch pedal to the floor, you have approximately stock
>> clearance in your clutch system. Whether this is actually enough clearance
>> is
>> another debate.
>> Most cannot get 0.040" clearance, and worse, most do NOT push the pedal
>> clear to the floor when shifting. So the synchros get overworked matching
>> gear
>> speeds. Yes, usually one can tell if there's a long-throw slave inside.
>> IMHO, you quickly get used to the 5% or so extra effort. FWIW- J Deryke
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