rx4 radiator kuput.
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Thread: rx4 radiator kuput.

  1. #1
    1000+ Posts jo proffi's Avatar
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    Default rx4 radiator kuput.

    My trusty Scenic rx4 developed a bit of a coolant leak a week or so back.

    Turns out it was from where the tube fits into the plastic end plate, and not as I first suspected where the end plate crimps on to the ned tank.

    You can not accuse the modern renault (valeo) radiator of being robust.
    Maybe it is an environmental thing, but compared to the old style radiator where the fins were welded/soldered??? onto the end tank plate this newer type seems to have the tubes friction fit into the end plate. Maybe they are glued, i dont know but regardless, it is a piss weak design, but probably less toxic to produce.

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    The upside of this pissweak design is the cost.
    Just had a brand new one (valeo) delivered for a bit over $200.

    That much I'm happy about.

    Now to try and fit the thing.without doing to much collateral damage.


    Jo

  2. #2
    COL
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    Quote Originally Posted by jo proffi View Post
    My trusty Scenic rx4 developed a bit of a coolant leak a week or so back.

    Turns out it was from where the tube fits into the plastic end plate, and not as I first suspected where the end plate crimps on to the ned tank.

    You can not accuse the modern renault (valeo) radiator of being robust.
    Maybe it is an environmental thing, but compared to the old style radiator where the fins were welded/soldered??? onto the end tank plate this newer type seems to have the tubes friction fit into the end plate. Maybe they are glued, i dont know but regardless, it is a piss weak design, but probably less toxic to produce.

    The upside of this pissweak design is the cost.
    Just had a brand new one (valeo) delivered for a bit over $200.

    That much I'm happy about.

    Now to try and fit the thing.without doing to much collateral damage.


    Jo
    Sounds like these modern Renault radiators have a finite life as Ken has also found out.
    Regards Col

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  3. #3
    1000+ Posts jo proffi's Avatar
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    At least they pass the savings on to the customer, Col.
    To be perfectly honest, whether piss weak or built to russian military spec, I like the idea of having a new radiator in my car.

    I'll review that opinion after the new radiator is installed and the AC still works.


    Jo

  4. #4
    COL
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    Quote Originally Posted by jo proffi View Post
    At least they pass the savings on to the customer, Col.
    To be perfectly honest, whether piss weak or built to russian military spec, I like the idea of having a new radiator in my car.

    I'll review that opinion after the new radiator is installed and the AC still works.


    Jo
    Good luck with it Jo.

    Hope you don't have to dismantle to much of the car to get it in.
    Regards Col

    1973 Renault R12 Station Wagon
    1976 Renault R12 Station Wagon
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  5. #5
    1000+ Posts jo proffi's Avatar
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    Opinion reveiwed.....This car sucks and whoever designed things like the headlight mounts should be punched in the head!!!!

    Seems like taking the bumper bar off is required but bugger me if I could be bothered with that. Skinny arms reaping benefits!!

    Jo

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    1000+ Posts nt reno's Avatar
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    Quote Originally Posted by jo proffi View Post
    Skinny arms reaping benefits!!Jo
    Don't you mean "skinned arms - donating blood"
    jo proffi likes this.

    NT Reno

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    My late brother spent his time working on and racing Mini Cooper 'S' cars (the real ones from the 60's). He used to say he had BMC arms - Bloody, Mutilated and Cut. His were skinny, too, which he considered a benefit for the same reason.

    Good luck with the radiator, Jo!
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  8. #8
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    Quote Originally Posted by Fordman View Post
    My late brother spent his time working on and racing Mini Cooper 'S' cars (the real ones from the 60's). He used to say he had BMC arms - Bloody, Mutilated and Cut. His were skinny, too, which he considered a benefit for the same reason.

    Good luck with the radiator, Jo!
    Very good!! And so true. Who could forget the vast space for working around a "proper" Mini engine.

    Jo, the $200 replacement cost is staggeringly cheap. I've looked at our Scenic, and hope never to be where you are!

    Out of interest, what are the age and km for your Scenic and how old was it and how many km when YOU acquired it?
    JohnW

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  9. #9
    1000+ Posts jo proffi's Avatar
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    It is a 2001 rx4 with 220k on the clock. Pretty average km for a rx4 .
    Bought a new bottle of type d coolant for it and all is sweet with the new radiator.

    It was not the most difficult job in the world but not one you'd want to trust to someone ham fisted or impatient.
    Getting the old radiator out is easy...it is dead so nothing maters.
    Putting the new one in though actually took two people so as not to damage the oh so fragile radiator.
    Not difficult, but very fiddley.

    Jo
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  10. #10
    1000+ Posts jo proffi's Avatar
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    Don't know why Mr Murphy is shitting on me at the moment, but now that the new radiator is in and working fine, the damn thermostat is playing up and seems to be stuck open.
    coolant temp is now a direct reflection on load/airflow.
    For a part that is only just over a year old I'm not at all impressed.

    I seems that as soon as i put new coolant in a car, I have to drain it out within the month to effect some stupid little repair.

    Its funny, compared to what i read on this forum about other peoples cars being hyper sensitive and throwing up fault codes or error messages, i'm amazed the scenic has not done the same, especial when it had water in no 4 plug hole and only ran on 3 cyl at WOT.

    Jo

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    Quote Originally Posted by jo proffi View Post
    Don't know why Mr Murphy is shitting on me at the moment, ......................I seems that as soon as i put new coolant in a car, I have to drain it out within the month to effect some stupid little repair.
    Happens to me all the time.
    I think there is an evil relationship between water pumps, thermostats and radiators.

  12. #12
    1000+ Posts jo proffi's Avatar
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    If you persevere with old renault long enough you get to see a all number of shithouse after market parts.
    Have now changed parts supplier.
    I just replaced the thermostat but before I could do that, the broken bits of old thermostat needed removing with great care.
    It appears that the the thermostat frame was not strong enough to handle the spring pressure and constant cycling, causing metal fatigue to allow the frame to break into a few smaller parts.

    WHAT A POS!!!

    Hoping the new Quentin Hazel part will last longer than 18 month.

    The greenies will be pleased to hear that I managed to only lose about half a cup of coolant in the whole repair.


    Jo
    Last edited by jo proffi; 4th November 2014 at 05:20 PM.

  13. #13
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    That's terrible, I hope you find your lost coolant soon.

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