Lahiru85

Thank you my dear friends for valuable advices. I'll come back to you after 14th september

Dear Friends, 1.1 Both fans directly all the time 1.2 No thermostat during last two years (removed) 1.3 Thermostatic switch (sensor) replaced by a brand new Nissan genuine one (it is not a low cost Japanese substitution sensor ) 2 Can this happen for 10km of run with directly connected fans? In addition to that coolant leaks from interface connecting radiator plastic tank (not the expansion bottle) and aluminum tank (radiator) if radiator cap was closed. But the radiator plastic tank has no crack or any damage. Can this happen due to faulty radiator cap? 3.1 //You observe a coolant lean from near the pump under normal operation (radiator cap closed, both fans running and engine warm)?// Yes 3.2 ok, I’ll change water seal A radiator mechanic inspected the problem and told me that bolts of engine head should be tighten further because small leak there. But it is not done yet. Also I want to find very good mechanic to troubleshoot this problem after 13th september. I have a doubt regarding this problem whether this is a problem in engine head itself. I spent Rs.50k up to now regarding this problem and have a doubt of replacing engine and feared.

Yes friend, raced (via accelerator) After replacing gasket, the car does not start to boil with directly connected fans but the coolant runs out slowly from radiator cap opening (when the cap was removed). Coolant does not leak from water pump when the radiator cap was removed (leaking happens if radiator cap was fixed to radiator. If the water pump is faulty, coolant should leak any time, isn’t it? my understanding is the highly pressurizing the coolant circulating system above working level. Radiator was cleaned manually but the problem is still there. As you said, water lines could be blocked (you mean water lines of engine, isn’t it). This blockage may initiates to pressurize the coolant circulating system. Please tell me, which steps should follow my mechanic to solve this problem. If not, who are very good engine expert mechanics that can solve this problem? I’m in ja-Ela area and think my mechanic has no solutions above this level. Please advice

My dear friends, experts, I have a FB15 Ex-saloon 1500cc automatic transmission car (yom2000) and bought 2 years ago. I have done 8000km up to date and the car was stopped suddenly while driving on the road with “crees crees” sound. When the bonnet was opened by me, noticed that the belt connecting alternator was smoking. I have turned off engine and carried to the garage that was familiar me. Mechanic checked the engine, cooling fans, radiator. The engine was raised by him and boiled up also fans were not automatically turned on. Again the engine was raised with directly connected fans and again boiled up. He told me, the engine’s gasket, thermostat sensor should be replaced and both parts were replaced with Nissan genuine after facing engine head. After replacing gasket & sensor, he told me, problem originated from faulty AC compressor because the engine was turned off automatically when AC switched on. Then AC compressor was replaced and the problem was solved partially. But coolant was leaked out from water pump if the engine was raised with out direct fans (fans were turned on automatically via sensor. But it was not turned on before boiling starts). He checked water pump and told me, it was a good one. To day I have done 10km with directly connected fans & AC and noticed coolant was leaked out from water pump and top side of radiator (but radiator plastic tank is not faulty one). Then I raised directly connected fans, removing radiator cap. I noticed that no leaked coolant on water pump. Then I raised directly connected fans+AC, removing radiator cap. I noticed that no leaked coolant on water pump but the coolant was run out slowly from radiator tank opening. please help me to solve this problem.