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Please helpNo compression on one cylinder

"Im still kinda new to boating

"Im still kinda new to boating so bare with me.. ive had my boats now for bout 1 1/2 years. my motors a 1979 merc 150 v6. can anyone comfirm that year with the ser# 5129898. anyway. this summer it started acting like it was flooding out alot. always bogging down when i stomped the gas for take off. if reved up in neutral for a sec then out in gear, would go fine. bout to rebuild the carbs. but while at i checked the compression on each cylinder, all at about 110 but one on bottom was 0. if turned over with plug hole empty, i can see the piston going back and forth and can feel a little pressure coming out but not enough to register on gauge. any info on what prob could be or what to do next will greatly help. thanks in advance."
 
remove the cylinder head and r

remove the cylinder head and report what you see.It should be obvious piston/rings/scored cylinder/or blown head gasket.
 
wow..thats was fast.. glad i f

wow..thats was fast.. glad i finally found a forum and people who care about helping..
im planing on taking it off tomorrow and i will report. thanks so far.
 
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