Headgasket types E300TD

Discussion in 'Engine' started by Ali E300TD, Jun 13, 2008.

  1. Ali E300TD

    Ali E300TD Hardcore MB Enthusiast

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    Hi!!

    I've got an E300TD 98 year 606 engine. I got the head gasket replaced and ever since then its normal operating temperature has gone to 90-95 instead of 80 ....
    I was wondering if different head gasket types are available, with different thicknesses, in this engine.. like in many other cars.

    If thats the case how can i tell what thickness was my old gasket and whats the new one... are there any notches or any other mark that represents the thickness?

    Thanks in advance!!
     
  2. Dieselman

    Dieselman Banned

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    All the same gasket. The temperature should be controlled to 80c by the thremostat and then the viscous fan if it gets that warm.
     
  3. OP
    OP
    Ali E300TD

    Ali E300TD Hardcore MB Enthusiast

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    So you are saying its not the head gasket?

    My mech says it is altho it does not mix coolant and oil, he checked it by pressing the upper radiator hose which was pressurized at normal operating temperature...

    He says it should not be like that!
     
  4. Dieselman

    Dieselman Banned

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    Take the cap off and see if it's bubbling combustion gasses into the water and perform a compression test.
     
  5. c240yaz

    c240yaz Hardcore MB Enthusiast

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    It is possible that a piece of scale got disturbed in part of the water gallery when the head was off and is now caught up in the thermostat causing to not open fully.
     
  6. OP
    OP
    Ali E300TD

    Ali E300TD Hardcore MB Enthusiast

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    Thanx!! i'll check the expansion tank for gasses and what figures should i get for the compression test?
     
  7. Ian B Walker

    Ian B Walker MB Club Veteran

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    I may be stating the obvious here but use a compression tester for diesels as the petrol ones wont work. As for pressure, I am, not sure but a figure of 11 bar comes to mind.
     
  8. Dieselman

    Dieselman Banned

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    You need a minimum of 400psi/27Bar, at 300psi/20Bar it won't start at all.

    Check across all cylinders and see if any are significantly different, especially ones next to each other.

    As Ian says use a diesel tester, not a petrol one, otherwise......it won't just be the engine that's broke..
     
  9. Ian B Walker

    Ian B Walker MB Club Veteran

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    Thanks for the correct figure Will, my apologies for wrong info.
     
  10. Dieselman

    Dieselman Banned

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    I suspect you had petrol figures in your head as opposed to diesel ones.;)
     
  11. OP
    OP
    Ali E300TD

    Ali E300TD Hardcore MB Enthusiast

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    So what should the diesel figures be?
     

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