[DeTomaso] Seals

[jderyke at aol.com]

Two problems with stock clutch slave cylinders. First, they are made of some sort of pre-rusted iron. Pits form immediately even in the box. Second, when you hone out the pits that tear up seals, the resulting bore is often either too oversized for new replacement seals to fit, or the honed bore becomes cone-shaped front-to-back. So the repair usually leaks within a week. And since the clutch hydraulics wear out as a system, fixing the slave often causes a matching master to begin leaking.

The REAL Fix is to find a slave (or master) that does not instantly corrode: hard-anodized aluminum or a steel or brass liner pressed in a stocker. This has been a problem since the Pantera was still in production. All the above 'fixes' applies to clutch masters too. Some originality-freaks use silicone fluid in non-leaking clutches only. Clutch pressures are low enough so the stuff works half-way-decently on the street, unlike in brakes. But I wouldn't drive Silver State events with silicone fluids anywhere in my car.
 

 

-----Original Message-----
From: Stephen Nelson <steve at snclocks.com>
To: detomaso <detomaso at poca.com>
Sent: Thu, Jul 3, 2014 11:22 am
Subject: [DeTomaso] Seals


   Got to the point I needed seals for the clutch slave cylinder on 5332.
   Talked to Dennis at my favorite supplier - Panty Perf - he doesn't
   carry.  So, tried a couple of seal outfits here in Portland.  Unanimous
   opinion - people don't carry seals any more, but one shop did manage to
   find a 1 inch piston that would go in, and all I would have to do is
   turn a different cup on the end that the rod goes into.

   So, being from OKC - I called Sealco in OKC.
   [1]http://www.sealcompany.com/  God bless Sealco.  I used to live in
   OKC - needed any kind of seal they had it.  And yup, like $3.30 each -
   no problem.


   Youse guys need seals - Call Sealco!


   Stephen Nelson

References

   1. http://www.sealcompany.com/

 
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-------------- next part --------------
   Two problems with stock clutch slave cylinders. First, they are made of
   some sort of pre-rusted iron. Pits form immediately even in the box.
   Second, when you hone out the pits that tear up seals, the resulting
   bore is often either too oversized for new replacement seals to fit, or
   the honed bore becomes cone-shaped front-to-back. So the repair usually
   leaks within a week. And since the clutch hydraulics wear out as a
   system, fixing the slave often causes a matching master to begin
   leaking.
   The REAL Fix is to find a slave (or master) that does not instantly
   corrode: hard-anodized aluminum or a steel or brass liner pressed in a
   stocker. This has been a problem since the Pantera was still in
   production. All the above 'fixes' applies to clutch masters too. Some
   originality-freaks use silicone fluid in non-leaking clutches only.
   Clutch pressures are low enough so the stuff works half-way-decently on
   the street, unlike in brakes. But I wouldn't drive Silver State events
   with silicone fluids anywhere in my car.

   -----Original Message-----
   From: Stephen Nelson <steve at snclocks.com>
   To: detomaso <detomaso at poca.com>
   Sent: Thu, Jul 3, 2014 11:22 am
   Subject: [DeTomaso] Seals
   Got to the point I needed seals for the clutch slave cylinder on 5332.
   Talked to Dennis at my favorite supplier - Panty Perf - he doesn't
   carry.  So, tried a couple of seal outfits here in Portland.  Unanimous
   opinion - people don't carry seals any more, but one shop did manage to
   find a 1 inch piston that would go in, and all I would have to do is
   turn a different cup on the end that the rod goes into.

   So, being from OKC - I called Sealco in OKC.
   [1][1]http://www.sealcompany.com/  God bless Sealco.  I used to live in
   OKC - needed any kind of seal they had it.  And yup, like $3.30 each -
   no problem.


   Youse guys need seals - Call Sealco!


   Stephen Nelson

References

   1. [2]http://www.sealcompany.com/

_______________________________________________

Detomaso Forum Managed by POCA

DeTomaso mailing list
[3]DeTomaso at poca.com
[4]http://poca.com/mailman/listinfo/detomaso_poca.com

References

   1. http://www.sealcompany.com/
   2. http://www.sealcompany.com/
   3. mailto:DeTomaso at poca.com
   4. http://poca.com/mailman/listinfo/detomaso_poca.com