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    Overheated today. Now running rough. Where to start?

    Mercruiser 228 1979 In water running great today when temp started rising above 180. Came off plane and idled to a safe place before engine died. Temp reached 200. Overheat was caused by a tear in the main hose from the circ pump to the tsat. pouring all the water into bilge...
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    Summerizing....Change oil Again??

    I properly winterized my 5.7 2 falls ago including an oil change.. That nice fresh quicksilver oil has sat in there for 1.5 years.. Do you folks think I should run it for awhile or change it??
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    Flushing out Contaminated Gear Oil

    Howdy, I'm in the process of resealing my 79 I Drive. Upon removal this fall, I noticed water contamination in the oil. I drained and replaced the oil. The new stuff I put in is still nasty and contaminated from the remnants of the old stuff. Is there a recommended way to...
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    I drive yoke and seal replacement

    I am replacing the yoke and seal on my 79 pre-alpha. I have my manual, but don't quite understand how deep I have to go. If I replace the yoke and seal using the same shims and bearings, is it necessary for me to find a shim tool to check the upper driven gear clearance? Thanks for...
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    Power Piston Spring ??

    79 mercruiser 228 4bbl quadrajet Somehow my quadrajet power piston spring disappeared during the rebuild process. From what I have read the tension of this spring makes a huge difference in the carbs operation. Anyone know if I want a weak, medium, or strong replacement? Can I just...
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    Q Jet specs. help me find them.

    Hi All, The # on my q jet : 17057504 I cant find the specs for this carb on the paperwork that came for my rebuild kit. This carb is off my Mercruiser 228 (1979) , but when I look up that serial # online it says its off of a 77 Corvette and I still cant find the float height and...
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    Trim/Trim Tab position for holeshot

    79 Carver Montego 23' Mercruier 228/ I drive This is my first i/o and first experience with Bennett trim tabs. What is the best position of the outdrive and tabs to achieve quickest planing? I have been out twice in the boat and experimented with the drive position and tabs I think...
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    I drive shift cable routing/adjustment

    This is my first post. This forum has been a great resource for me doing my first bellows job, and other assorted tasks. Its a '79 Mercruiser 228 I've done my bellows/gimble bearing/alignment sucessfully. Now I need help with the new shift cable. The pictures in the manual are...
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