hi please help here are the symptoms

whenever the i start the engine the tempereature gauge goes above 100 but not on the red lines and only drops down to 90 when driving.
what i have recently had repaired
new head gasket
new skimmed cylinder head
recent as in 2 days oil change and oil filter
the water pump and radiator thermostat are both fine before i did an oil change i had plumes of white smoke when i revved engine now the white smoke is still there but minimal i beleive this is water vapour please help me i need to know whats causing temperature to be so high its a 1.6 ltr 16v

krista campbell, July 2008

however todat we took out the thermostat temperature went back to normal and stopped smoking no smoke from the exhaust now whatsoever insteasd we now have a rattling noise sounding like its coming from cam belt any ideas

krista, July 2008

i'm sorry to say that it sounds to me as if the cylider head is cracked

barrie, July 2008