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    Could it be my prop??

    I have a 89 SUNBIRD ski boat with a 4.3 OMC Cobra O/D. My problem is I have been running a 4 blade Michigan Wheel Vortex 14.5 x 18. I can not pull a slolam skiier up very well so I went to a 15 x 16. This puts me very close to my upper WOT limit if not over. I still have trouble with the low end...
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    Exhaust MAnifold Exchange

    I have a 1989 4.3 OMC/V-6 Cobra with 1 piece exhaust manifolds.Those of you that have experienced with these know how hard these are to find and how expensive they are when you do, not to mention they are too heavy and a pain in the butt to deal with. My question is, do I have to use these? If...
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    Leaving outdive lifted is bad ??

    I read on a previous post concerning a leaky O/D bellows that you should not leave leave your O/D raised when not in use. Is this right?? I never heard this before and my boat stays on the trailer with the drive raised 95% of the time. Should I lower the drive after trailering to keep the...
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    Belts on 89 OMC 4.3

    I have a 89 Sunbird eurosport with a 4.3L OMC/Cobra. I replaced the belts when I bought this with the same size that was on it. My problem is I think the belts that where on it are to narrow. They sit way down in the pulley grooves and wear excessively. Does anyone know where I can find a...
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    OMC Cobra drive oil dirty

    I was doing my pre-summer maintenance on my boat ( oil change, grease, fuel filter, etc...) when I checked the outdrive lube oil level I also drained a small amount from the bottom drain to check for water or other contaminants. What I found was the drive oil was realy dark even though it...
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    Cobra upper needs rebuilding! Any suggestions!

    I pulled my outdrive off today to replace the lower seals (89 Sunbird with a 4.3L Cobra O/D). Well to my suprise I found metal i the upper drive, lots of metal! It all seems to have come from a upper pinion bearing. Gears dont have any appearent sign of wear or scoring. Hopefully I caught it...
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    4.3L Cobra with electric fuel pump.

    Being new to boating, I recently purchased a 1989 Sunbird with a 4.3L OMC Cobra O/D. The motor is brand new and I got the boat at a great price. Well, the more I find needs fixing, that price is looking less and less great!! My current problem is when I checked out the boat I noticed it had an...
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    Adding a Ski Locker

    First off, I am pretty new to boating. I have a fair amount of experience mechanicaly and with fiberglass. I have a 1989 18ft Sunbird Bowrider with an I/O 4.3L Cobra outdrive. This boat is in good shape mechanicaly and the hull needed some TLC, but most of thats been redone. My problem is a lack...
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    OMC Cobra

    Can anyone tell me if the website concerning shift cable adjustments on OMC cobra O/D's has moved? I have tried the links to Stuarts site on many occasions and still have not managed to get thru. Thanks
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