Felix et al,
Here is the correspondence I had with FTE about getting technical info on Porsche clutch master and slave cylinders. Maybe this will be of use to some of you:
Dear Mr Hubby
Thank you for your below email.
I have discussed this matter with our technicians and found out the
following:
The maximum piston strokes are:
KG19074.1.1 = 34 mm
KN2393B1 = 21,6 mm -> and the clutch release path is 18,9 mm
Hope I was able to assist you.
Should you have further questions please let me know.
Kind regards
Christine Hammer
Teamleiterin Export / Sales Manager IAM
FTE automotive
_______________________________________
FTE automotive GmbH
Andreas-Humann-Str. 2
D-96106 Ebern
Tel.: +49 9531/81 3642
Fax: +49 9531/81 53642
http://www.fte.de----- Weitergeleitet von Gabi Heinzel/EBN/FTE am 06.07.2005 07:16 -----
larry.hubby@hp.c
om An: Gabi.Heinzel@fte.de
Kopie:
05.07.2005 19:07 Thema: FTE-Kontaktformular
Nachricht gesendet am Tuesday, 05.07.2005 um 19:07:
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Title : Herr
Surname : Hubby
First name: Larry
Street : 985 Harriet St
Postcode : 94301
City : Palo Alto, CA
Country : USA
Telephone : (650) 857-2259
eMail : larry.hubby@hp.com
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Message:
I am using your part numbers KG19074.1.1 and KN2393D1 in an automotive hydraulic cluth application, but not the one for which it was originally designed. I need to know one additional piece of design information, the maximum stroke for the slave cylinder. I am using a stroke of about 21mm (measured from the neutral position at which the internal spring holds the piston, out to full extension) at present, and this seems to cause the rubber boot which seals around the slave shaft to protrude from the cylinder significantly. I am worried that I am in danger of pushing the piston out of the slave cylinder and causing the unit to fail. If this situation is normal (the protrusion) and the stroke is not excessive, I would like to know. Otherwise I can re-design the system to use less stroke but more pressure.