thanx alot crazy bhai!!
for ur replies and suggestions..
meri gari ki mileage is waqt 197k hai aur 189 pe engine bana tha (overhaul)
i have got 1 nali radiator.. inshallah i will go 4 a double nali wala... magar woh new kaheen se mil jae ga... i cannot trust the kabli ones caz this is pakistan u know.
after installing the radiator i will go for installing the thermo...
waise on long routes the car rarely overheats and the prob is in city only...
also for ur info.. i have done the following measures to keep my car not overheat...
1. never switch on interior fan at 3 or 4 speed..
always 2 in the noon and at 1 in the night.
this helps in maintaining good temp. caz the compressor responds to it. at 1speed it trips frequently.
radiator service every month even its working fine or not.
avoid noon driving at extreme hot temp outside.
but yesterday i had a chat with my uncle(mamooon)
he strongly apposed the idea of the thermo valve.
he said it is only needed in the countries where temp is very low.
in our countries the temp is mild all the times so it doesnt make any difference.
btw he is an automobile engineer with 30yr expe...
secondly he told me ke baleno and santro mein temp sensor is placed at the block of the engine not on the head.
so if the water level decreases in the car the temp remains same in the gauge since the sensor is taking readings from the block of the engine (which has got full water.)but at the other hand the water level is decreasing in the head thus, overheating the car and blowing the gasket.
so to avoid this, he said, check the water daily and fill it with coolant.
anyways thnx for everything.