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5.0GI Broken Valve Spring and Water in Cover

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  • 5.0GI Broken Valve Spring and Water in Cover

    Hi All,

    So my 2001 Larson Escape (5.0 GI penta) was running real lousy (rich and under powered). Did a compression test and 7 of the 8 were in good shape ~160 psi, one of the cylinders was completely dead. Pulled the valve cover off to find a broken valve spring and a massive milk shake. Is the water in the valve cover related to the broken spring? Did one cause the other?


  • #2
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    most likely you have been leaking water into the motor for some time, the valve guide is probably rusty, and the spring braking is a by-product of that.

    only way to know is to pull the head.

    if you boat in salt water, inspect your risers and manifolds.
    Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

    1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - http://forums.iboats.com/forum/owner...988-rogue-2420

    Past Boats
    1970 Wooster Hellion - Merc 9.8
    2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
    1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

    What’s behind you doesn’t matter.Enzo Ferrari