i know its a rover not a vaux but i dont thinkits a specifically rover prob so here goes
got rover metro 1.1 which ive had to replace the bottom end as no'1 cylinder cracked, after much greif(horrible car to work on) the new bottom end was installed with the original head albe it cleaned up and tested.
now the car runs fine but thetemp just rises and rises which at firts i thought was a guage / sensor problem as the engine seemed very cool so we let it carry on running in the red for a few mins , engine still quite cool????
so we replaced the stat checking that it did work replaced and tested all temp sensors and cleaned all coolent hoses and it still does it the block gets hot, in fact it got so hot the oil in the head thinned and a tappet got noisey, of course i havent let the temp rise to the red sinse but its got me stumped now.
the water around the block gets hot, the stat does open but the water in the rad stays cold, water is passing freely through the rad checked that already, which leads me to beleive the water is not moving around the lump so ive bled the system counless times through both bleed valves but no joy???? ive still to check the water pump as 2 of the securing nuts have rusted but there is no obvious sighn of wear........................PLEASE HELP
And sorry about the long post but its been going on a long time.