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    jlisenbe's Avatar
    jlisenbe Posts: 5,020, Reputation: 157
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    #1

    Apr 18, 2011, 01:54 PM
    Valve cover gasket 99 mazda 626
    My daughter has a 99 Mazda 626 4 cylinder. It needs a new valve cover gasket. Is this is a difficult install? If not, then is there anything I need to be aware of?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Apr 18, 2011, 02:02 PM

    Easy job, just don't gouge the machined surface on the top of the cylinder head. You may want to apply a small amount of Permatex sealant in the corners near the camshaft. Otherwise, oil may leak and deteriorate the timing belt.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #3

    Apr 19, 2011, 07:39 PM

    Also, torque the cylinder head cover nuts to 84 lb.-in. starting in the center and working outwards.
    chaosmaster1's Avatar
    chaosmaster1 Posts: 294, Reputation: 12
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    #4

    Apr 20, 2011, 04:48 AM
    Be extremely careful when you do it and keep any debris out of the area
    jlisenbe's Avatar
    jlisenbe Posts: 5,020, Reputation: 157
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    #5

    Apr 20, 2011, 09:12 AM

    Thanks for the replies.

    Tex, you stated, "just don't gouge the machined surface on the top of the cylinder head"

    Is the surface steel or aluminum?

    I don't have a torque-wrench, but would 84 inch/pounds be what most of us would call "snug".
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #6

    Apr 20, 2011, 09:45 AM

    Aluminum.

    Because of the rubber grommets, it can be difficult to gauge.
    RickMN's Avatar
    RickMN Posts: 244, Reputation: 52
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    #7

    Apr 26, 2011, 08:35 PM
    http://www.familyhandyman.com/DIY-Projects/Car---Truck/Car-Maintenance/how-to-fix-a-leaky-valve-cover-gasket
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