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Thread: Radiator Flush Alto

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    Default Radiator Flush Alto

    After reading and researching many threads and also recommendations by Zulfiqar Bhai. I did a flush to my ALTO radiator.
    My Radiator and gas kit were recently replaced 1 month back And i was facing no heat up issues. but deposits of rust were increasing in radiator due water and old rust in reservoir and pipes. This was not acceptable to me as sooner or later it will ruin everything.

    So First step was to remove the thermostat valve by removing its flange. The Valve was quite neat and clean as it was recently bought. Then I bought a new flange for Rs 350. Installed the old fan switch in it, applied some silicon (Rs 60) and installed the flange back.

    I took a 2.25 liter bottle, added water. Bought TATRI (Citric Acid) and made a solution. First I drained all the water in radiator. then inserted the Tatri solution in radiator and topped it up with tap water

    I was driving it by a kind of instinct, only I was in a different dimension...............................Ayrton Senna

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    sir if you read the post once again you will realize that I am not saying to wait till the H mark, I am saying if the temp switch is faulty it will not work and the car with heat to death however the needle will still be on the 75% mark so you will never now the car has heated up...

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    Quote Originally Posted by siraj_7 View Post
    sir if you read the post once again you will realize that I am not saying to wait till the H mark, I am saying if the temp switch is faulty it will not work and the car with heat to death however the needle will still be on the 75% mark so you will never now the car has heated up...
    Agreed
    I was driving it by a kind of instinct, only I was in a different dimension...............................Ayrton Senna

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    Being a chemical Egnr. and a water treatment expert i would suggest to buy a pH meter during the descaling process of radiator. add HCL 10% solution in water and top up radiator. make sure pH of water do not go down below 2.5. Circulate system for about 30 mins. then its time to neutralize system. drain all water from radiator. its pH will gradually increases due to the deposits. add Caustic soda in water 10% and maintain pH at around 10-11. circulate water for 15-20 mins. then flush with demin water.. You are good to go now..

    (Descaling Expert of Radiators in Power Generation Engines.. M Umair Ayub)
    slow n steady wins the race..

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    How Car Cooling System Works - PlayIt.pk

    How a car cooling system works. and purpose of thermostat valve.
    slow n steady wins the race..

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    Guys who drive with temp going to h mark are buch of smugglers who have haram money
    Once fan of our old mehran was at fault I saw temp going to h it was at 75 percent I switched off the engine car was doing 50kph
    Grind to a halt then poured some water over the rad to cool it down fan was out of order and I was 3kms away from home after letting it cool down made it back to home and found auto switch wires were cooked
    Hanjiii Kaa Storeey Eehh !

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    I am not saying to drive the car on H mark. I am saying that if temperature switch is not working incase of overheat the needle will not come to H mark even when the engine gets shot.


    Quote Originally Posted by ekdrifter View Post
    Guys who drive with temp going to h mark are buch of smugglers who have haram money
    Once fan of our old mehran was at fault I saw temp going to h it was at 75 percent I switched off the engine car was doing 50kph
    Grind to a halt then poured some water over the rad to cool it down fan was out of order and I was 3kms away from home after letting it cool down made it back to home and found auto switch wires were cooked

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    a faulty temperature guage can ruined your engine.. and i dont know if these guages in mehran works absolutely accurate or not,..
    slow n steady wins the race..

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    They never work if you run it on water, they will at most rise 3/4th when it should be on H mark, the very faulty ones never go beyond even 50%... in cars which have been running on water since a decade...

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    Quote Originally Posted by siraj_7 View Post
    They never work if you run it on water, they will at most rise 3/4th when it should be on H mark, the very faulty ones never go beyond even 50%... in cars which have been running on water since a decade...
    In my previous khyber after engine rebuild. I replaced each and every part of the cooling system. The fan switch alone costed Rs 800.as my previous fan switch was all rusted. same case with the temperature sensor.

    To update on my Car. My Alto is running great in 43 Degrees in karachi with Auto Fan, thermostat, coolant with AC
    I was driving it by a kind of instinct, only I was in a different dimension...............................Ayrton Senna

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    just make sure you keep changing coolant at 40K or one year which ever comes first...

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    Quote Originally Posted by siraj_7 View Post
    Another brainless man-iac, if you read the post carefully I am not saying to drive the car on H mark. I am saying that if temperature switch is not working incase of overheat the needle will not come to H mark even when the engine gets shot.
    that also happend with me
    car was boiling and it shut off and temp was on C
    aka not working temp gauge
    car was a suzuki vultus
    Hanjiii Kaa Storeey Eehh !

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    Suggest me radiator for cultus

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    Quote Originally Posted by MoizIrfan View Post
    In my previous khyber after engine rebuild. I replaced each and every part of the cooling system. The fan switch alone costed Rs 800.as my previous fan switch was all rusted. same case with the temperature sensor.

    To update on my Car. My Alto is running great in 43 Degrees in karachi with Auto Fan, thermostat, coolant with AC
    And the added benefit of not having to worry everyday about - holes in radiator, "paani check karo" and other random stupidity related to it.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    i am thinking to Flush my Cars Radiator..and fill it with coolant..i have some questions... firstly what is this thermostat valve and Flange..!!! its necessary to remove?? how is the procedure please need help on this...!!
    second...if i put soda mixture in Radiator it will not harm..!! as you said you have started the car for 30 mins.. and from were you get Tatri..!!! what is this !!..please need Help on this...and my car is 2.OD 2c Diesel...

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    @xulfuqar
    Bhai can we use Zic Coolant (the green one) in Hyundai Santro? Its silicates won't mess the water pump and stuff?

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    Quote Originally Posted by Xulfiqar View Post
    And the added benefit of not having to worry everyday about - holes in radiator, "paani check karo" and other random stupidity related to it.
    the biggest relief of not doing "paani pura krdo radiator mei".
    I was driving it by a kind of instinct, only I was in a different dimension...............................Ayrton Senna

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    Quote Originally Posted by Legalchamp View Post
    i am thinking to Flush my Cars Radiator..and fill it with coolant..i have some questions... firstly what is this thermostat valve and Flange..!!! its necessary to remove?? how is the procedure please need help on this...!!
    second...if i put soda mixture in Radiator it will not harm..!! as you said you have started the car for 30 mins.. and from were you get Tatri..!!! what is this !!..please need Help on this...and my car is 2.OD 2c Diesel...
    thermostat valve restricts the flow of coolant through the radiator when engine temperature is cold and once engine temperature reaches it optimum range it allows the coolant to flow through the radiator thus maintaining optimum temperature. therefore you have to remove it before flushing.

    Flange is the housing in which thermostat fits

    therefore get the thermostat removed. flush the radiator with tatri solution, then flush again using baking soda solution. then rinse multiple times using water, ensure radiator is good (not choked and not leaking), remove all water, re install thermostat, add ZIC diluted coolant
    I was driving it by a kind of instinct, only I was in a different dimension...............................Ayrton Senna

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    Update on my car.
    These days my Dad only drives the car and that to occasionally. 140km per month approx as I m now out of country on Job. Radiator, thermostat, coolant and AC still going strong. No issues yet, no coolant level drops by he Grace of Allah
    I was driving it by a kind of instinct, only I was in a different dimension...............................Ayrton Senna

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    Update as of 20th September

    Car cooling system still going strong
    No coolant drop level
    No over heating issues
    Thermostat and auto fan working great in the heat of karachi
    No rust as well


    Only concern is when I poured the coolant 15 months back ZIC that is. It's expiry was 1 year written on the bottle. Now it's more than 1 year and I am unable to change the coolant as I am not in Pakistan. And I don't want anyone to touch my cooling system because of the effort I made to restore the cooling system my self.
    I was driving it by a kind of instinct, only I was in a different dimension...............................Ayrton Senna

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    Quote Originally Posted by MoizIrfan View Post
    Update as of 20th September

    Car cooling system still going strong
    No coolant drop level
    No over heating issues
    Thermostat and auto fan working great in the heat of karachi
    No rust as well


    Only concern is when I poured the coolant 15 months back ZIC that is. It's expiry was 1 year written on the bottle. Now it's more than 1 year and I am unable to change the coolant as I am not in Pakistan. And I don't want anyone to touch my cooling system because of the effort I made to restore the cooling system my self.
    I changed zic after 1 year
    Then went for toyota genuine coolant its been 16 months and its still good.
    Hanjiii Kaa Storeey Eehh !

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