Just a quick question, I had my flywheel resurfaced last year when I replaced the clutch and now its really hard to shift unless I adjust the clutch so it has no free play.

My Question is if they took to much material off the flywheel will that cause the clutch to drag?
and the clutch I changed wasn't the original one, so now I am wondering if the old owner had it resurfaced already.

 

if the flywheel gets too thin the fingers on the pressure plate will be further away from the release bearing and you will have to adjust the clutch further. will it give your symptom? possibly. the input shaft needs to slow down enough for you to get it into gear (the clutch is splined to it). if your pedal needs to be higher up to push the same distance it could be the culprit. you could always pull it back out and measure the thickness, there are specs.
a dragging clutch isn't good. there should always be some free play or it's just like riding with your foot on the pedal causing the clutch to slip a little while driving down the road, and also will add strain to your release bearing over time.

 

any idea where I could find the specs, I searched and couldn't find anything.