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Thread: LS1 water pump

  1. #1
    Join Date
    Oct 2003
    Location
    Egham, Surrey.
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    370

    LS1 water pump

    After a short trip out this morning my 2002 LS1 water pump is now leaking and spraying water around engine bay.
    Whilst a change of gaskets may solve the problem would it be sensible to change it for a new one?
    Not sure if going up to an 18 psi thermostat put extra load on it.

    Any advice on who is likely to stock this part in the UK?

    Trevor
    GD Euro 427
    LS1 / T56

  2. #2
    Join Date
    May 2004
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    Cowbridge, United Kingdom
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    10,247
    18PSI thermostat?
    Do you mean pressure cap?

    I can't see why that woulda difference.
    Where's the leak, pump nose or gasket to block?
    Kev Davies
    South Wales Area Rep. UKCC Membership Secretary
    DAX Mk4, 383 Chevy Stroker, Tremec. SOLD
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  3. #3
    Join Date
    May 2004
    Location
    Finchampstead, Berkshire, UK.
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    3,809
    No idea in the UK but Rock Auto are my usual goto for LS stuff

  4. #4
    Join Date
    Oct 2003
    Location
    Egham, Surrey.
    Posts
    370
    Hi Jim
    Yes ,to pressure cap
    Originally due to the amount of spray around engine bay I thought it must be a gasket but after cleaning up , the leak is fine vertical spay on the underside of the casting just to the left of the crank shaft pulley.

    I will contact Rock Auto tomorrow , they seem to have a choice of manufacturer.
    Many thanks
    GD Euro 427
    LS1 / T56

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