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Thread: Blown expansion tank again

  1. #61
    Join Date
    Feb 2004
    Location
    Williams West Aust
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    Yes Randy,same animal.
    In a diesel they have huge compression ratios,more than double a petrol mojo.If the head gasket leaks it will blow the weakest link as the cooling system cant handle these pressures.
    It seems the bottle in the D1 is the weakest link.Radiators,hoses,etc in other vehicles blow first.
    I feel the bottle gets the blame for the failure not the gasket,a case of putting the cart before the horse.
    Andrew
    DISCOVERY IS TO BE DISOWNED
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  2. #62
    Join Date
    Dec 2009
    Location
    Brisbane
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    32
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    where did u get the 72 degree one from. i was told only 82 deg available. too hot up here for that i reckon.

  3. #63
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
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    Wow, talk about a blast from the past.
    But still an ever topical thread.
    My old black tank is still going after 18 years now and I went up Stockton in 31C on Sunday with no movement of the temp gauge.

    Look Grounded if your cooling system is in good nick it does not really matter the temp of the thermostat as if it going to overheat, the extra 10C between 72 and 82 will last another minute or so in soft sand.
    Regards Philip A

  4. #64
    Join Date
    Jan 1970
    Location
    Adelaide Hills. South Australia
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    13,349
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    I have said this before but it's worth repeating imho. Drone drone drone............................

    Regular attention should be given to freeing off & lubricating the relief valves in the cap 1 x Pressure relief & 1 x vacuum, the pressure one probably being most important in respect of the blown tank. A squirt of WD40 or similar is all it needs. Often.

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