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Replacing valve cover gasket

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 76_Cheyenne, Jul 29, 2002.

  1. 76_Cheyenne

    76_Cheyenne 1/2 ton status

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    I got a pretty good leak coming out from under my valve cover, I just bought the gaskets and are going to replace them. Is there anything I should know before i do it. I've never done this but I know it's pretty straight forward. Does anyone have any hints? or suggestions. Thanks
     
  2. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    Dont over tighten the bolts. Drink plenty of fluids, and dont eat yellow snow.
     
  3. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    What Mr. Mouse said. The worst thing you can do is overtighten the covers. Basically go as tight as you can with your fingers and then another 1/2 turn with a wrench.

    Another important step is to make sure that any leftover RTV or gasket pieces are cleaned off of BOTH surfaces. I take a gasket scraper to the rim on the head and the rim on the cover to make sure there isn't any crud that will cause a bad seal. I also use a rag soaked with BrakeKleen to remove any oil residue from both surfaces as well.

    Basically, the better your prep, the longer and better the gasket will work. /forums/images/icons/smile.gif
     

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