how can i fix my slave cylindr on my nissan terrano 2.7td?

I suggest you ignore Glen's abusive remarks. Some people have low tolerance levels and cannot make allowance for mixed abilities. I suppose Glen would advocate having my handicapped son put down!

Try bleeding the clutch and whilst doing so replace the old fluid in the system by bleeding it until the new fresh clean fluid comes through. This solved the very same problem with my daughter's Shogun. People forget that clutch fluid is hygroscopic (same as brake fluid) and will absorb water over the years.
If fluid replacement does not solve your problem then you may need to consider replacing your slave cylinder completely, or at least the seals. Best of luck anyway.

Chicks Fan
November 2008