When to use gasket sealer on a gasket

Discussion in 'Chevy Truck Forum' started by FinallyFlying, Aug 15, 2010.

  1. FinallyFlying

    FinallyFlying Full Member

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    I am fixing up my 1991 K1500 with the 5.7L engine and have just a general question. When do you use gasket sealer with a gasket and when not to?

    I also notice that nearly all of the gaskets I have removed from the engine were not installed with any sealant on them at all so my idea is to just reinstall the new gaskets the same way. In fact, so far I haven't run into a single gasket that was installed with sealer and that sure makes removal of the old gasket quite easy:

    water pump
    thermostat
    oil pan
    oil filter adapter

    So, what opinions do others have about when to use a gasket sealer and when not to?

    Thanks!
     
  2. og25

    og25 Senior Member

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    If I use sealer it is usually to hold the gasket in place while I do the install. Valve covers for example.
     
  3. leolkfrm

    leolkfrm Full Member

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    I like using copper gasket on the gaskets for install
     
  4. zombie1969

    zombie1969 Senior Member

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    3m spray adhesive works great.I dont use gaskets at the intake ends.Just a 1/4in bead of rtv.Dab of rtv at the oil pan corners.
     
  5. 93bluesilverrad

    93bluesilverrad Full Member

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    what is the difference between K and C pickups?????
     
  6. gmctrucks

    gmctrucks Full Member

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    I think it's to do with what it can hold in weight but im not 100% sure.
     
  7. mudseeker

    mudseeker Senior Member

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    C~ 4x2
    K~ 4x4
     

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