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Water Pump Install Questions

Discussion in '308/328' started by fiatbrett, Aug 12, 2010.

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  1. fiatbrett

    fiatbrett Karting

    Aug 20, 2009
    98
    Tallahassee, Florida
    Full Name:
    Brett B
    #1 fiatbrett, Aug 12, 2010
    Hey all, looking for some advice on installing a water pump on a 85 308 QV. Should I use some sort of RTV sealant on the gasket surfaces between the pump and housing, or will the gasket alone be sufficient?

    Also, do I need to use thread sealer on the 3 bolts that attach the pump to the block? Do they pass through a water passage when seated?

    Thanks, Brett
     
  2. ramosel

    ramosel Formula 3

    Sep 11, 2004
    1,237
    Meadow Vista, CA
    Full Name:
    R Moseley
    #2 ramosel, Aug 12, 2010
    Last edited: Aug 12, 2010
    You'll get a myriad of opinions on the subject of gaskets and sealers. My advice is do what you are most comfortable and confident with.

    Me... I don't like to chance leaks. I use the gray silicone you buy at Ford for their diesel oil pans. With a gob between my thumb and index finger, I smear both sides of the gasket lightly before assembling anything that might leak. I hate fighting out corroded bolts so I used liquid Teflon thread sealer on the bolts in question.

    Rick
     
  3. ClydeM

    ClydeM F1 World Champ
    Owner Rossa Subscribed

    Nov 4, 2003
    12,061
    Wayne, NJ
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    Clyde E. McMurdy
    #3 ClydeM, Aug 12, 2010
    I checked with the gasket manufacturer - no sealant.
    And my '83 is not leaking any antifreeze
     
  4. CliffBeer

    CliffBeer Formula 3

    Apr 3, 2005
    2,198
    Seattle, Washington
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    Cliff
    #4 CliffBeer, Aug 12, 2010
    Last edited by a moderator: Sep 7, 2017
    As Rick said, you'll get all kinds of opinions on this one.

    My preferred method is a very thin skim of Permatex aviation form-a-gasket on the WP side only (nothing on the block side). The next time you have to replace the WP the gasket will come off clean off the block and then you just have to carefully clean off the face of the WP to replace, but of course, you'll likely be giving that WP up on exchange for a replacement...so somebody else can deal with scraping off the gasket!

    Never had a leak using form-a-gasket.

    Good luck!
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  5. fiatbrett

    fiatbrett Karting

    Aug 20, 2009
    98
    Tallahassee, Florida
    Full Name:
    Brett B
    #5 fiatbrett, Aug 12, 2010
    Thanks for the replies.
     

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