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Thread: Melted Block And Head

  1. #1
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    Melted Block And Head

    The bottom radiator hose blew on my 95 Disco a couple of months ago.

    I haven't been able to get it to run right since then so I decided to pull the heads while I am on holidays.

    It had no power or acceleration.

    This is what I found when I pulled off the passenger side head.

    Has anybody seen this before? Obviously the head gasket was gone between the cylinders, but the block and head melting like this?
    Attached Images Attached Images

  2. #2
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    WOW! thats a pretty piece of FUBAR you have there

    how long did you say you drove it after cooking it??

    cheers phil

  3. #3
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    depressingly yes I have on my old 3.5lt 79 2door rangie, aluminium doesn't like to be over heated it's possible that the engine is buggered sorry to say - hope not for you sake

    Check your heads with a straight edge to see if they have warped as well

  4. #4
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    Quote Originally Posted by blitz View Post
    Check your heads with a straight edge to see if they have warped as well
    No need for that - see pic #3
    Scott

  5. #5
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    This is what happens when a blown head gasket is not replaced and the car is driven without repair, this damage is not from the hose blowing, it takes a while to erode away a head and block like this, the bottom radiator hose was a sign that the head gasket was blown, same thing can happen on a cast iron block and head, looks like a new head and block will be needed, Regards Frank.

  6. #6
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    It will need a new head/s and block.

    The car just seems to sit there most of the time now because I use the work car all the time.

    I have to decide now whether to repair it or wreck it.

    Any interest in a stroker crank with a stuffed block?

    Andrew

  7. #7
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    One of my customers did that. She had a split coolant tank and it took less that 5 minutes up the SE freeway in Adelaide to do similar damage. I happened to be driving in the opposite direction and saw a huge cloud of smoke arrow down on a blue D1 on the uptrack. Less than a minute later came a phone call: "my car's stopped, can you get it running again please?"

    Needless to say your engine block and heads are scrap, just like hers.

  8. #8
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    Its more common AFAIK between the combustion chamber and valley and I did one like that in Saudi Arabia.
    Luckily the channel was only 3or 4 thou deep so it could be machined out.

    BUT WOW you really did it well!
    Regard sPhilip A

  9. #9
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    Quote Originally Posted by bee utey View Post
    One of my customers did that. She had a split coolant tank and it took less that 5 minutes up the SE freeway in Adelaide to do similar damage. I happened to be driving in the opposite direction and saw a huge cloud of smoke arrow down on a blue D1 on the uptrack. Less than a minute later came a phone call: "my car's stopped, can you get it running again please?"

    Needless to say your engine block and heads are scrap, just like hers.
    There's no way that a gouge that deep in both head and block happened within five minutes, the gasket on Andrews has been gone for some time to cause that amount of damage, Regards Frank.

  10. #10
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    Quote Originally Posted by Tank View Post
    There's no way that a gouge that deep in both head and block happened within five minutes, the gasket on Andrews has been gone for some time to cause that amount of damage, Regards Frank.
    Maybe 10 minutes then. It got so hot it was melting piston skirts too. It certainly was running well at the bottom of the hill.

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