Bugga, timing belt snapped

The timing belt on the 2L diesel snapped yesterday, grr.

Gave no warning, just let go with no noise as I pulled up at some lights so engine was just about idling.

Pushed it off the road and checked, I could see it was not outa diesel, the engine cranked freely so I removed the oil cap on the rocker cover and cranked it knowing in my heart the o/h cam would not be moving, I was correct and I hated myself, my fault, I shoulda done the valve adjustments a few thousand km ago, I would have seen the belt was starting to fray then, grr.
Had it towed home by RAC.


so the big question is:

HOW DO YOU TELL IF the VALVES or PISTONS are DAMAGED ?

-> "WITH-OUT" lifting the head, as it's a real *** of a job and the new belt has to go back over the cam drive gear on the head, I don't want to put it on, adjust the valve and pump timing and then remove it, just to replace some damaged pistons or bent valves etc. that I did not check, for whatever reason.

Have removed the belt and it's a complete mess, cleaned the front valve train/gear cover and no damage there so will go to Perth by bus and come back next week and fix the ol girl.
Mainey...