Question about Hyundai Santa Fe

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How can i change head gasket - Santa Fe Hyundai Cars & Trucks

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  • liviu49 Jul 11, 2010

    I CANNOT OPEN VALVE COVER BOLTS

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Hi,

Kindly mention the year of make?

Thanks!!

Posted on Jul 17, 2010

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A failed or broken gasket may manifest in several ways. One of the ways to know that you have a broken gasket is when your engine oil has coolant in it. This is not usually a do-it-yourself activity, because with most engines, the difficulty lies in the actual skill of the mechanic in opening the engine and properly installing a new gasket. Therefore, even if the head gasket itself is a relatively inexpensive auto part, it's the labor cost that is big, not to mention the time involved in the actual work.
Due to the variety of cars and engines available, there is no one way to change a head gasket. The exact procedure differs, for instance, from an overhead-camshaft (OHC) engine, to a internal camshaft engine. It also differs if you're working on an inline engine or a V6 or V8 configuration, in which case, you will have to replace two sets and not just one.
· Before working on the engine block, be sure it's cool enough. You also need to disconnect the battery terminals and drain the cooling system. You will also need to raise the front end of the vehicle on jack stands to access the exhaust manifold at the bottom. Remove the exhaust volts connecting the exhaust manifold to the exhaust pipe.
· You can now lower the vehicle, and open the hood. Remove the air cleaner assembly, the upper radiator hose, and then the thermostat housing. You should also take out the high tension wires from the spark plugs. Once there are no obstructions, you can now remove the valve cover.
· Upon the removal of the valve cover, remove the rocker arms and push rods. Place these parts in a safe place so that they can be replaced back to the engine in good condition. On the other hand, if you have an overhead cam engine, you also need to remove the timing cover and timing belt or chain. The valves may not be manually removed as the cam and valve assembly are more likely to be removed together with the head, depending on your engine make.

· After gaining access to the head bolts, loosen them in order. Starting from inside, slowly loosen the bolts in a spiral pattern, and store these in a safe place. If they are of different kinds, you need to remember where they were loosened from. Once you successfully remove all the bolts, you have to break the head loose from the gasket and remove it from the engine compartment. The gasket is sealed inside the block, and the head you might have to gently hammer to loosen it up from the engine block.
· Once the head is removed, you are now ready to install a new one. Before doing so, you need to make sure that the gasket material from all the surfaces is removed. You can use a metal scraper to remove this residual material, and then clean the surface with a solvent.
· Install the new gasket and the head into the proper slot. This should be done carefully and properly to prevent future failures and damages. After placing the gasket and the head, you may now screw the head bolts on as tightly as possible. After securing the head in place, reinstall all the parts that you removed during the replacement.
The head gasket is regarded as the most important sealing application inside a car's engine. Several forces make this part wear out or break apart. Before trying to replace a blown gasket, though, try checking other areas of the engine for other possible sources of engine problems. In all likelihood, you might have to take your car to a professional due to the complicated nature of gasket replacement, unless you have extensive experience in engine repair.
Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Jul 11, 2010

  • raj somaiya
    raj somaiya Jul 11, 2010

    Spray WD-40 on the bolts and leave for 30 minutes.Then try to remove the bolts. The bolts will open much easily.

  • liviu49 Jul 17, 2010

    how can i remove alternator? i remove the head and head gasket looks ok the head of the pistons are damage and all on the same line?/??

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You will need to disconnect the battery, Remove any hoses on top of valve cover gasket. (make sure to mark hoses so you remember where they go) Remove valve cover, Then remove the head.

You can go to autozone . com and register for free, then login, choose your vehicle, then choose view repair manual for a free repair manual that will give you step by step directions with pics.

Posted on Jul 11, 2010

  • 5 more comments 
  • liviu49 Jul 11, 2010

    i cannot open the bolts on the head.where i can find replasment bolts?

  • Nate Stansfield
    Nate Stansfield Jul 11, 2010

    autoparts warehouse . com
    rock auto . com

    What year and engine liter size is this?


  • liviu49 Jul 11, 2010

    2003 ,TD,1991CC

  • Nate Stansfield
    Nate Stansfield Jul 11, 2010

    Which liter size?
    2.4
    2.7
    3.5

    Is it 2 wheel drive or 4 wheel drive?


  • liviu49 Jul 11, 2010

    4WD,2.0TD

  • Nate Stansfield
    Nate Stansfield Jul 11, 2010

    There are 8 head bolts on each head. With the valve cover off you should see the tops of the head-bolts




    1. Drain the cooling system.


    2. Relieve the fuel system pressure.


    3. Remove or disconnect the following:






      Negative battery cable


      All necessary electrical connections, hoses and cables


      Air cleaner


      Intake manifold


      Ignition coil


      Timing belt


      Exhaust manifold


      Rocker cover


      Camshafts






    4. Loosen the cylinder head bolts in the reverse order of the
      tightening sequence.



    5. Remove the cylinder head and gasket.

    When installing the head, Tighten the cylinder head bolts in sequence as follows:



    1. Step 1: 18 ft. lbs. (25 Nm).


    2. Step 2: plus an additional 58-62 degrees.


    3. Step 3: plus an additional 43-47 degrees.







  • Nate Stansfield
    Nate Stansfield Jul 11, 2010

    For valve cover, remove all 12 bolts




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hi, if you are changing the head gasket then it may be worth checking the water pump and thermostat as it could have been one of these that failed causing it to over heat and then blown the head gasket so check the water pump and thermostat once you have the cylinder head off.

You may need the head checking to see if it has been warped but this is unlikely on this make of vehicle.

Once you have done the gasket make sure that when you fill the coolant up you only trickle the water in to prevent any air lock as this will cause it to over heat again, check for any bleed screws on the coolant system to let the air out whilst filling the coolant up,

Its best you check in the workshop manual for these as their may not be none as it could be self bleed system.

It also worth checking if the head bolts need changing as they do stretch and can cause the gasket not to seal properly so replacing these may be a good idea.

Let me know how you get on or if you need further assistance ok.

ps what makes you think the head gasket has gone??

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