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I AM WORKING ON AN 1987 470 170HP. WATER IN OIL . REMOVED WHAT NEEDED TO REMOVE TO TAKE OFF HEAD . ALL BOLTS CAME OUT WITH 1/2" IMPACT EXCEPT 1 THE ONE ON OUTSIDE CLOSEST TO THERMOSTAT I HAVE TRIED BREAKER BAR EVEN WITH 2' PIPE OVER IT -- HEATED BLOCK JUST A LITTLE WITH MAP GAS (DID NOT WANT...
1979 mercruiser 228 (gm 305) purchased boat with severly cracked block on both outsides --frost plugs DID NOT BLOW -- repaired cracks with world famous J/B WELD held great NO LEAKS !!!! problem occoured when put muffs on lower -- ran great for 5 min's or so -- I shut it down went got more gas...
i pulled a 79 gm 5.0-228 hp - found and got stung on a 350 turned out to be an 1986 -- pre 85 will bolt right in can i change flywheel and will this 86 be able to be used ? any help will be great thanks
i am kind of new to the I/O'S have worked on plenty of outboards -- i just picked up 79 century 20' with a pretty badley cracked block (both sides) from ice i would presume -- from what year to what year can i replace this with little as possible ? also can i use a higher hp 6cyl ? 190hp they...
