Replacing kia optima 2.4 timing belt and head
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    The Underdog seguin22 has not yet proved knowledgeable seguin22's Avatar
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    Default Replacing kia optima 2.4 timing belt and head

    Long story short I need to know how hard it is to replace the timing belt and head on a dohc 2.4 litre kia optima. Have any of you guys had any expierence with it, or have any pointers to share with me? I see it has two belts one timing and one for the balance shaft and the kit comes with three tensioners so I will need to replace those I suppose.


    Thanks in advance, AJ
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    Default Re: Replacing kia optima 2.4 timing belt and head

    What year Optima? Which 2.4l engine? The current Theta or the old Sirius engine?

    I mean, I don't know the answer, but this info might help someone that actually knows.
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    Default Re: Replacing kia optima 2.4 timing belt and head

    Umm its whatever one came in the 2001 optima.
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    Default Re: Replacing kia optima 2.4 timing belt and head

    2.4L sirius. It's basically a Mitsu 2.4L. Not that hard to work on. Log on to www.hmaservice.com and look up a 2001 Sonata and it will give you all the info you need.

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    Default Re: Replacing kia optima 2.4 timing belt and head

    Awesome!! thanks for the link.
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    Default Re: Replacing kia optima 2.4 timing belt and head

    And they say I never help anyone!

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    Default Re: Replacing kia optima 2.4 timing belt and head

    Quote Originally Posted by BobMs_wht2k2 View Post
    And they say I never help anyone!
    Didn't it feel good being nice and helpful?
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    turbo envy only1db has picked up a wrench only1db's Avatar
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    Default Re: Replacing kia optima 2.4 timing belt and head

    JUST DO NOT LET THE CAMS SLIP!!!! if they slip and twirl...you might bend a valve. i've seen it done. there are special tools to hold the cams together...i personally use 2 17mm wrenchs on the bolts and them clamp them together with a set of vice grips.

    you also have to make sure the oil pump shaft if in time as well....its a pita if you have not done one before...and also watch out for the crank position senso...if you put the plate on backwards or mess with the sensor at all...you will be taking it all apart again!

    not one of my favorites...but better then the XG
    Last edited by only1db; 08-21-2009 at 09:24 PM.


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    Super Moderator Cypher knows a lot about Elantras Cypher's Avatar
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    Default Re: Replacing kia optima 2.4 timing belt and head

    If its just like the mitsubishi, it's quite easy. I just did a 97 galant timing belt/balance shaft belt this past week. Everything went quite easy with the exception of the auto tensioner. If it has an automatic tensioner, GET A NEW ONE.

    Also, if its like a mitsubishi then do yourself a favor and pull out the bolt next to the oil pump sprocket and insert a long philips screwdrive into it. It'll keep the oil pump drive from turning when you go to put the timing belt on, since it spins freely. Other than that, it's a fairly straight forward and easy job.
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    turbo envy only1db has picked up a wrench only1db's Avatar
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    Default Re: Replacing kia optima 2.4 timing belt and head

    or the other trick is to turn it manually and if it rolls back to towards the timing mark its in phase.

    and yes its EXACTLY a MITSU motor....hell an evo head fits on there and vise versa. its a 4g block


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    Junior Member shoreman has picked up a wrench shoreman's Avatar
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    Default Re: Replacing kia optima 2.4 timing belt and head

    Quote Originally Posted by Cypher View Post
    If its just like the mitsubishi, it's quite easy. I just did a 97 galant timing belt/balance shaft belt this past week. Everything went quite easy with the exception of the auto tensioner. If it has an automatic tensioner, GET A NEW ONE.

    Also, if its like a mitsubishi then do yourself a favor and pull out the bolt next to the oil pump sprocket and insert a long philips screwdrive into it. It'll keep the oil pump drive from turning when you go to put the timing belt on, since it spins freely. Other than that, it's a fairly straight forward and easy job.
    Eric drove down to Salisbury with the overdrive off. I got in the car to drive everyone to lunch and noticed it was off. He said it was off so he left it off. I wonder what RPMs he was running at 70 MPH in 3rd?

    I guess it's a testament to the engine's durability and your work. Take a little something from petty cash today.
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    Super Moderator Cypher knows a lot about Elantras Cypher's Avatar
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    Default Re: Replacing kia optima 2.4 timing belt and head

    Geez, 3rd gear at 70mph? Not only was he turning that motor hard he was wasting some serious gas, but I bet it moved when he went to pass someone!

    Quote Originally Posted by only1db View Post
    or the other trick is to turn it manually and if it rolls back to towards the timing mark its in phase.

    and yes its EXACTLY a MITSU motor....hell an evo head fits on there and vise versa. its a 4g block
    Yeah that may get it into time, but won't keep it from moving when you go to put the belt on.
    Last edited by Cypher; 08-22-2009 at 07:30 PM. Reason: Automerged Doublepost
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    Default Re: Replacing kia optima 2.4 timing belt and head

    I have a DOHC lock tool so I will just line up the marks and use that tool to lock the cams in place. The kit comes with new belts and tensionor and thanks for the tips on the oil pump I was wondering about that.
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    Default Re: Replacing kia optima 2.4 timing belt and head

    but you can manually move it to line up...either way will work. thats just the way i was taught and am familiar with.


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