[DeTomaso] Clutch master/slave

[Mike Drew]

Les,

Not all replacement masters are created equal. The ones with DETOMASO cast in the side are legendarily junk. 

I was with a couple of Pantera vendors at an event a few years back and they were talking about them. One said “I have a huge box of defective ones that customers have returned”.  The other then said, “I bet my box is bigger than your box!”  Then they both had a good laugh. I didn’t think it was especially funny, because I know how difficult it is to change the damn things.

The only quality factory clutch master cylinders I’m aware of come from either Roland Jäckel in Germany, or Marino Perna of Pantera East (who imports them from Germany).   I can’t speak to Brand X replacements from Wilwood etc. 

Lori’s car had one of the DETOMASO units and it failed when about three years old (well past when some have failed—some were bad right out of the box) so we replaced it with one from Marino, which has been going strong for seven years now. 

My vintage 1993 NOS Italian unit finally failed a few weeks ago. I plan to replace it with one of Marino’s, and then try to get a rebuild kit to restore my old one to have as a spare.....

Mike

Sent from my iPad

> On Jun 23, 2018, at 20:47, L GRAY <tipo874a at msn.com> wrote:
> 
>  Don,
>       Your clutch master exhibits the classic symptoms of a failing master cylinder. The seals are no longer able to hold full hydraulic pressure. When you pump the clutch pedal a few times, you are building enough pressure to let the clutch release but only for less than a minute. 
>      Time to replace the master and possibly the slave cylinder, if it has been in the car for as long as the master has. 
>      Almost all of the PANTERA vendors sell these units. Your choice, Pantera’s by Wilkinson, Full Throttle Pantera’s, Pantera Performance Center - Colorado, Larry Stick up in Reno-Tahoe area, Precision Proformance-Bob Byars ....
>      If you get the POCA newsletter from a few months ago, you’ll find all of the vendors listed there with contact information. (Be sure to check an edition from around January to see them all.)  Hope this helps you. 
> 
> Leslie A. Gray
> 
>> On Jun 23, 2018, at 5:52 PM, Don Franck <panteradon at gmail.com> wrote:
>> 
>>  Second tech question of the day.
>> 
>>  Drove the car quite a ways today and am having difficulty shifting.A
>>  Seems like the hotter the car gor the worse the problem.A  It wiuld
>>  shift easier if i pumped the clutch pedal a few times.A  By the time i
>>  pulled into the garage, the car died as i could not release the clutch.
>> 
>>  So, options? A  We did bleed the system a year or so ago and it did not
>>  help the situation.
>> 
>>  Rebuild the master and slave?A  If so, where can i get parts.
>> 
>>  Replace them?A  Recommend vendors?
>> 
>>  I do have braided steel hydraulic lines so the line is not the issue.
>> 
>>  Thanks for any and all suggestions.
>> 
>>  Don
>> 
>>  --
>>  Don
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