solid lifter type noise merc 3L

'N Deep Ship

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Joined
May 13, 2009
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I have a 93 3.0L merc that was professionally winterized before being stored outdoors for 3 years. The motor started on old fuel easily and ran a little rough (as expected) After mixing fresh fuel with the old stuff about 75/25 the boat was put in the water and ran pretty good but it sounds like it has solid lifters rather than hydraulic. Compression test is ok, oil press is good and it doesn't sound like a collapsed lifter. I plan on doing the screwdriver test tomorrow to identify the noise. Any suggestions would be helpful
thanks
 
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