thanks for your response.
I replaced the T belt 15000 miles ago and I had the vibrations before then but i will investigate the crank pulley. The clutch kit and DMF that I will be fitting is a genuine SACHS kit, have you ever heard of any issues with these. Are these kits as good as factory fitted ones.
Thanks

RM, September 2013

I have never had any dealings with Sachs kits but being German would expect good quality from them.have fitted after market clutch/DMF kits to some motors and have experienced poor quality/problems,ie.g/box out again after 2k miles.There are instances where solid flywheel/clutch kits are available now but personally would fit like for like where possible.DMF`s are there for a reason and think you are doing the correct thing fitting one.

cdc, September 2013