Blacklaurel:
I refuse to believe the brother up there is serious with what he typed, someone who can read and write in 2020 should not write such fallacies. He just wants to make the thread funny.

HeavenlyBang:


You're talking rubbish.

HeavenlyBang:


You're talking rubbish.

Fhowe:
you said earlier you know little about cars , I believe in practicals . A car was delivered to me at Ondo state and this car was purchased at Cotonou the driver brought the car and gave to me at Akure . When I started driving the car and switched on the ac it was overheating until I took to my Kazeem , the thermostat was removed the fan was put on permanent and they checked whether the fan was blowing outward by putting a nylon on the condenser it was actually sucking it instead of blowing it away . After the fan was made to blow in the right direction my car temperature became normal I used that particular car for 4 years before selling it off ,from my earlier post I was referring to radiator as condenser my mistake though ,most of all this guys on nairaland forming car gurus know nothing I have actually met some in person and I was disappointed with their misleading post and ads they put up here , you think they know it all but they know nothing I won't mention names but please be guided

sultaan:


I, read a couple of you posts and I am amazed at your beliefs, but if you look at the facts you might see the holes in your beliefs.
Please Google the terms open loop and closed loop in car engines and you might understand the job of the thermostat. The engine ECU is looking for certain data/ condition and thermostat enables the condition.
If I have my cooling fan blowing outwards, how well do you think the fan will work when my car is found 120kmph and blowing against the wind.Try holding a fan out of the window driving on the highway and see who wins.

Because our people tend to drive through Muddy water, the radiator and condenser act like a sieve and filter out the water holding the mud in the cooling fins this reduces the amount of air flowing through the radiator no matter how long the fan runs. If your radiator fins is clean, the amount of air flowing through it is enough to cool the engine, that it why your fan comes on mostly in hot slow traffic, and the newer cars have shutters in the grill for aerodynamics without engine overheating

Fhowe:
oga get your facts right . thermostat disconnects the engine from the radiator until it reaches to the sufficient operating temperature. Then afterwards the thermostat adjusts flow of coolant to the radiator.

Fhowe:
now someone is talking i think the correct way a fan should be blowing is inwards I confirmed that this evening

infolekan:




The engine was never with the radiator. The coolant only flows through the radiator to get cooled. The thermostat doesn't allow the coolant to flow through the radiator until it gets to a certain temperature. Just the same way the thermostat in your pressing iron keeps the iron at a certain temperature allowing it to keep going on and off.
I was referring to your stuff about reversing the polarity of the fan in cold region. Thats absolute balderdash and that should have been enough reason not to reply you. A working engine achieves same temperature wether in cold or hot region.....the time to achieve that temperature is probably what will vary. Maybe you should read more about all this.
And yes ....removing your thermostat makes the engine run at a much lower temperature than it should normally run making the engine oil to lubricate it less cos its not at its optimal lubricating temperature making for more engine wear. It eventually tells on the engine ....

Fhowe:
I am talking from my own personal experience and the solution that was applied and to be honest I drove that car for 4 years before selling it off . Now I have a question does this thermostat also work when the car is off and parked ? Cause I noticed something in my present car the fan suddenly comes on by itself when the car is off

Fhowe:
you said earlier you know little about cars , I believe in practicals . A car was delivered to me at Ondo state and this car was purchased at Cotonou the driver brought the car and gave to me at Akure . When I started driving the car and switched on the ac it was overheating until I took to my Kazeem , the thermostat was removed the fan was put on permanent and they checked whether the fan was blowing outward by putting a nylon on the condenser it was actually sucking it instead of blowing it away . After the fan was made to blow in the right direction my car temperature became normal I used that particular car for 4 years before selling it off ,from my earlier post I was referring to radiator as condenser my mistake though ,most of all this guys on nairaland forming car gurus know nothing I have actually met some in person and I was disappointed with their misleading post and ads they put up here , you think they know it all but they know nothing I won't mention names but please be guided

Fhowe:
I am talking from my own personal experience and the solution that was applied and to be honest I drove that car for 4 years before selling it off . Now I have a question does this thermostat also work when the car is off and parked ? Cause I noticed something in my present car the fan suddenly comes on by itself when the car is off

Lexusgs430:



Do you mean off for a few hours or off immediately after just driving/parking vehicle?....

HeavenlyBang:


You're talking rubbish.

GAZZUZZ:


Let's dissect your post logically and scientifically, bearing in mind the Nigerian factor.





Congratulations. What is vehicles present mileage vs mileage when it was exported ?

This answer will most likely resolve the next quote




Under no circumstances should vehicle temp exceed the half mark, unless there is a defect in the cooling system which I am assuming there is not, and that takes me back to the first quote about mileage.

In Nigeria 9/10 vehicles have had their mileages rolled back (BCD tins) how this is done in most cases is to take out the instrument cluster do some quick reprogramming and presto 500k miles becomes 25k. Sadly the cows that do the actual work are usually sloppy and don't return dials to the factory rest positions which I turn could result in first quote. There are several quick ways to confirm if it is a defect.

1. Crude method . Start the engine (AC off) Open the bonnet and watch the temp go up, the second the fans start working check the needle, if it is over the half mark, then the temp dial is wrongly placed.

2. Technical way. Plug a scan tool and leave it on live scan, start car with a/c off search for coolant temp in scan tool, when the needle goes above half in vehicle , compare data in scan tool, if over 100deg Celcius, then there is a problem, if it's relaxing between 90-98deg Celcius you are fine and again the temp dial is wrongly placed.


How does this all work.

The cooling system of your car has computer that monitors engine temp (among other things) the mechanical thermostat opens up at about 86degrees Celcius and allows hot coolant flow from the engine to the radiator, the fans don't kick in till about 96degrees (low speed) and stay on till the temp drops to 89degrees then the cycle repeats with the coolant in the radiator dropping to temps lower than the engine coolant temp which shuts the mechanical thermostat up waiting for engine temps to heat up an the cycle continues.



Google mechanic

melviniyke2002:
lol not google mechanic but 3 months warranty on toks engine mechanic....

GAZZUZZ:


Not any more. 1week repair warranty.

9icetoo:

Una see wetin baba40 stupidity don cause? It is well. Me na one month guarantee I need. One month only. I'm not asking for too much.