Terios 1997 problems

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Hi chaps.

This is my first post , so Please be easy on me Smile

A friend of mine bought a 1997 Daihatsu terios with a blown head gasket , He took it to his mechanic who had the head skimmed , and two valves replaced and had the head tested and its good.

The cylinders are also good no wear anywhere , He fitted a new head gasket , put everything back together but it still wont turn over , mechanic recons no compression , but the car did run before He stripped it down.

He checked valve clearance and adjusted it , still thinks engine cranks quickly indicating no compression.

Are these engines (1.3L 1997 model) interference or safe engines?

Thanks for your help