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    New 3.0 cobra sluggish

    So as the title implies, I had a very reputable marina/shop install a brand new chev 3.0 Cobra 4 banger in my 1991 16 foot glass Sunbird bow rider. The old motor developed a crack in the block when i had it out last month. Since i had just paid for a completely rebuilt outdrive i was kind in...
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    1990 3.0 cobra leaks water

    As the title implies, i have a leak what appears to be under the manifold under the carb. Leaks good but the bilge keeps up with it so i wasnt aware untill i just found out. Any ideas what it could be? Frost plug, water manifold gasket etc? Chev motor. Runs great but i would think this...
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    91 sunbird, 3.0 cobra outdrive, fuel gauge

    this really has nothing to do with the outdrive. My fuel guage is really messed up and i can figure it out. When i turn the key the neadle drops down more than at rest. I am getting 31.8 ohms with a fuel tank at the sending unit. When all is hooked up, if i touch a test light to the pink...
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    Omc cobra id lookup

    I just bought a 1990 sunbird with a 3.0 L cobra motor and outdrive. Boat runs good. Cant find any info on the motor as to if its a GM or Ford motor, Hp rating , specs etc. Model number is 986321, serial number is T0705270. 3.0L Can someone help me out as to the specs on this. I found a...
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    Fuel draining back into tank 17' Tempest 488 Mercruiser

    Every year I go through the same ritual. I can not start the boat unless I run a air line to the bow fuel tank vent and pressurize the tank while having the fuel line off of the fuel pump.. I believe there is an anti siphon valve in the tank but it is not accessible in any way. I have tried...
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    Mercruiser 488 RPM Full Throttle

    I have an early 70's - 17' Tempest with a 488 Mercruiser engine, Quadrajet Four barrel carb and a 17P High five Staneless prop. The motor runs fine and after a rebuild kit to the carb a year ago, the lean sneaze I had appears to be gone. I know this is a heavy old boat but with the set up I...
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    Best place to find a Quadrajet?

    I have a mercruiser 488. I need a "good" new or used Quadrajet that "really" works the way it should. I have tried a rebuild kit and it didn't help. I understand they are prone to issues but that is the only 4 bbl available for that motor im told.
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