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  1. #37
    Member Array
    Join Date
    Jan 2004
    Location
    Adelaide Hills
    Car:
    DA9T+Euro
    Have you changed your radiator cap?
    DA9 LS w/JDM SiR B18C turbo
    Looking for older Honda project car pre-1985


  2. #38
    Member Array
    Join Date
    Jan 2008
    Location
    sydney
    Car:
    s2000
    Edit:

    Car somehow miraciously is not overheating

    I installed the new radiator yesterday and it overheated. I cracked the shits this morning and done it again, flushed radiator and put the fluid back in.

    Only difference I did today was turn on the heater fan. I read this last night in a DIY thread here on ozhonda

    So i did that and took the car for a drive. Drove for approximately 40ks on the highway and it didnt overheat! It sat and 1/3 most of the way but towards the end it was at the halfway - slightly above halfway mark.

    I took this into consideration considering my coolant is really really shit diluted stylez

    So could the reason of all my overheating be because of the air or whatever it is being trapped through the heater or somin? If so im a bloody retard

    EDIT:

    Ok, so I drove the car now, at 6pm for about 25 mins on highway, it was pretty tame, heat stayed at 1/3 for 10 mins or so, then creeped up to half and stayed there for a bit. Then it creeped up to 3/4 then started to go back down to half<

    What I have seen is that it now takes longer for it to overheat than before, but the problem is still not fixed. It is know able to driven on a highway but still an issue

    Options?
    Last edited by fromdeeeast; 16-01-2010 at 05:55 PM.

  3. #39
    Member Array
    Join Date
    Oct 2004
    Location
    Sydney - Cabramatta/Liver
    Car:
    Jazz EVO IX
    like i asked a while back. List what you have done. All i have heard is;
    Changed radiator
    Changed coolant
    Checked thermostat

    Is that all now?

    When u bled the coolant did you run the car till it got hot with the cap off and the heater on?
    If not chances are you've still got air bubbles.

    If u did do it properly look back at my last post
    Evo IX - THE FINAL EVOLUTION

  4. #40
    Member Array
    Join Date
    Jan 2009
    Location
    NSFW
    Car:
    Go Kart
    Squeeze the hoses lightly, helps get the air bubbles out, just make sure you dont squeeze too hard that the coolant spill out.

    There is also a proper bleed valve, you should find it and open it up till coolant comes out.

    Ok, so I drove the car now, at 6pm for about 25 mins on highway, it was pretty tame, heat stayed at 1/3 for 10 mins or so, then creeped up to half and stayed there for a bit. Then it creeped up to 3/4 then started to go back down to half<
    This sounds like the thermostat. Did those temp changes happen while moving at the same speed or with stopping?
    ლ(ಠ益ಠლ) Y U DO DIS

  5. #41
    Member Array
    Join Date
    Jan 2008
    Location
    sydney
    Car:
    s2000
    Quote Originally Posted by Limbo View Post
    like i asked a while back. List what you have done. All i have heard is;
    Changed radiator
    Changed coolant
    Checked thermostat

    Is that all now?

    When u bled the coolant did you run the car till it got hot with the cap off and the heater on?
    If not chances are you've still got air bubbles.

    If u did do it properly look back at my last post
    Just done and OMG THANK YOU!!

    Car didn't overheat at all. the temp didn't move past 1/3, I guess there was just ALOT of air.
    Last edited by fromdeeeast; 16-01-2010 at 10:41 PM.

  6. #42
    Member Array
    Join Date
    Oct 2004
    Location
    Sydney - Cabramatta/Liver
    Car:
    Jazz EVO IX
    good. The only time mine moved over 1/3 was from a dead thermostat, which died cos of air bubbles

    It shouldn't really move now with the thicker core radiator. Mine went to half way at wakefield on a 30degree+ day and only after 6-7 laps going hard
    Evo IX - THE FINAL EVOLUTION

  7. #43
    Member Array
    Join Date
    Jan 2008
    Location
    sydney
    Car:
    s2000
    Hmmm, this car hates me

    Didn't overheat or move for a fact for 70kms, on my way back from work this afternoon, it decided to start overheat on the highway.

    I have ran out of ideas to what can be causing this issue.

    I have replaced radiator, coolant, bleed all the air out and checked everything.

    What could still be causing it to overheat on the highway. I am getting an air diversion plate made up next week for it, to see if that helps at all.

    Ideas?

  8. #44
    Member Array
    Join Date
    Jan 2004
    Location
    Adelaide Hills
    Car:
    DA9T+Euro
    Quote Originally Posted by mooshie View Post
    Have you changed your radiator cap?
    have you done this yet?
    DA9 LS w/JDM SiR B18C turbo
    Looking for older Honda project car pre-1985


  9. #45
    Member Array
    Join Date
    Dec 2008
    Location
    Darwin
    Car:
    90 civic lol
    Haven't had much to do with this kind of thing but i know the factory gauges and sensors can be pretty average, do you know anyone with an aftermarket sensor and gauge to see what sort of temp your running.
    If you think it as a whole, the water pump always is running, the radiator is new and so is the coolant, and the only thing that normally stops your temp continue to rise is your thermostat, providing your thermofan is working.
    So u would say that maybe your thermostat is sticking, like it pops but when it closes it sticks.
    or as limbo said about the bubbles, but you did try that and it stopped for abit then started so maybe you have cracked hoses?
    as I said not really touched on this before but just abit of food for thought

  10. #46
    TRAVDM Array
    Join Date
    May 2004
    Location
    BNE, Q
    Car:
    Lots of Hondas
    a simple test to see if your thermostat is not opening.

    take ur thermostat out and dont run one. go for a drive and see if it overheats. if it does, then its not ur thermostat. if it doesnt, its your thermostat.

    water pumps usually leak when they are stuffed.

    hows your head gasket?
    oh wrd!

  11. #47
    Member Array
    Join Date
    Apr 2009
    Location
    QLD
    Car:
    ED Sedan
    Have you considered the switch/gauge being faulty. My old neighbours charade was overheating, he tried everything and finally replaced the switch and that was causing all the issues (the car was never really overheating). His car also overheated when driving on the highway though

    Also what are people talking about not diluting your coolant and diluting it...

    You get 2 types of coolant, ready mix (which you don't dilute) such as OEM and others and then you get concentrate (which you have to dilute)

  12. #48
    Member Array
    Join Date
    Jan 2008
    Location
    sydney
    Car:
    s2000
    Quote Originally Posted by markismaximus View Post
    Have you considered the switch/gauge being faulty. My old neighbours charade was overheating, he tried everything and finally replaced the switch and that was causing all the issues (the car was never really overheating). His car also overheated when driving on the highway though

    Also what are people talking about not diluting your coolant and diluting it...

    You get 2 types of coolant, ready mix (which you don't dilute) such as OEM and others and then you get concentrate (which you have to dilute)
    By switch are you referring to the one which controls the thermo fan, if so this is working, as I just tested now, it opens up and turns off like any other car.

    Update.

    Have purchased thermostat, will be installing it tomorrow, I am also considering replacing the top and bottom radiator hoses.

    Also I need a new thermo fan as mine just f****n broke which I just replaced it 2 weeks ago for $65!!

    So now hopefully I will see if the water pump is working by when I change my thermostat. If water pump is fine and new thermo goes in and it still overheats I will be taking it to my mechanic/tuner to get that test which detects the presence of exhaust gases in the coolant to determine if I have blown my headgasket.

    Should a frustrating couple of days, YAY! :@

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