Hey D, look up Sterndrive.com, Mercruiser 3.7 coolant leak. Its pretty good info for what you're getting into. I had to replace my seals and pump cover gasket once. Wasn't too bad. My camshaft was ok not grooved, just the seals were old and had hardened from sitting up. I did it in an afternoon, you can do it! Scook is on the money with sleeving the camshaft if its grooved, its been done with good success. I had found some info on sleeves and seals but just needed seals. I'll try to dig up some info on seals and sleeves for you when I get off nights at work.
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77 V20 cuddy with 170 I/O Mercruiser
72 16ft. Carolina w/a 25hp Evinrude
Last edited by cfelton; 10-27-2018 at 10:22 PM.
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