schematic diagram of cooling system

markb63 · 1st April 2010, 23:28

hi , does anybody have a diagram showing the directional flow of the cooling system ? .
my reason for this is , i have changed my rad and fan ( thanks for the kenlow jules ) cleaned out the matrix removed the engine drain , refilled the cooling system with oat , still not getting red hot air out the heater .
i have also done a mod on the cooling rail , car is not overheating and running fine,but the bottom cooling rail is not getting as hot as it should i think ...
so i now think that the problem lies with the thermostat not allowing the coolant to circulate ?

sometimes the heater blows warmish air on low fan , but i think when its on fast because the flow is not good enough the blower is cooling it down , without the fan on both flow and return on the matrix are red hot .
your thoughts please thanks mark

1st April 2010, 23:28	#1
markb63 Avid contributor MG ZT 190 + Join Date: Feb 2010 Location: longbridge ( birmingham ) Posts: 246 Thanks: 0 Thanked 0 Times in 0 Posts	schematic diagram of cooling system hi , does anybody have a diagram showing the directional flow of the cooling system ? . my reason for this is , i have changed my rad and fan ( thanks for the kenlow jules ) cleaned out the matrix removed the engine drain , refilled the cooling system with oat , still not getting red hot air out the heater . i have also done a mod on the cooling rail , car is not overheating and running fine,but the bottom cooling rail is not getting as hot as it should i think ... so i now think that the problem lies with the thermostat not allowing the coolant to circulate ? sometimes the heater blows warmish air on low fan , but i think when its on fast because the flow is not good enough the blower is cooling it down , without the fan on both flow and return on the matrix are red hot . your thoughts please thanks mark