how do i change the water pump on my 1996 corsa?

drain cooling sytem,slacken three coolant pump pully bolts,remove drivebelt (if you know how to its not a simple job either)release clips on radiator top and bottom hose heater hose and expansion tank hose from pump housingand thermostat housing , disconect temp sensor wiring plug,unscrew slackend bolts,these bolts secure the pump and the timing cover to the cylimder head,withdraw pump(it may need light tap to free it)with soft hammer to free it from dowels,recover pump sealing ring discard it replace with new one,if pump faulty get new onereplace and hey presto its almost done then just fit back together in reverse hope that helps you unless engine is sohc 1.4or 1.6 then you have to remove timing belt and covers ond the cogs ect to get to it....

martin
June 2005