[ha_pe_1968]

Thank's a lot for all advices.
And sorry but have forgotten to tell what parts are in the car:
Roush 427R
Mc Leod clutch
Tremec TKO 600

The grinding was solved with the 1" master cylinder, mounting the clutch pedal at the one of the three holes with the most travel for the master cylinder, and adjusting the clutch pedal 1" higher then the brake pedal. When the fluid is fresh everything works great. After a few rides in the mountaines it can be that when i park the car in first gear that i have problems to get out the first gear ...after i am out of the first all gears work without grinding again. Installation should be ok, was done by Olthoff 7 years ago. The noise is new.
What i can really not understand is that there are a lot other cars which have no problems with heat at the clutch fluid and have the same setup.
In the meanwhile i really can understand people with a cable setup or automatic.

Greetings
Peter