5.0GI Broken Valve Spring and Water in Cover

Johnnymich

Recruit
Joined
Sep 29, 2017
Messages
1
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?

Thanks
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
47,297
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.
 
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