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    Wire shift lock-out on Davis Unified Ignition marine distributor mercruiser 5.7

    I am replacing the Mallory and coil ignition on a Mercruiser alpha I Gen II 5.7. The engine is actually a crusader 5.7 that was installed in place of the original mercruiser engine. The existing coil has on the (-) terminal two gray wires, the wire to the mallory distributor, and a black wire...
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    Sea water in mercruiser 5.7 with dry gasket manifold

    I have encountered a very strange problem. The boat is a 21' sea Ray with a Crusader 5.7 GM small block that was a replacement for the original mercruiser. Engine has 46 hrs, boat 146 hours. Fresh water cooling. Had a leak in the blocking gasket between the original mercruiser manifolds and...
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    fuel injection conversion crusader 350

    I have a crusader 5.7 liter with vortec heads and Holley 4bbl carburetor. Hard starting described in earlier posts. Problem seems to be carb, compounded by ethanol in fuel. Considering advisability of converting to fuel injection. There is a TPI fuel injection system from a 1986 corvette...
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    5.7 vortec rough after start

    Experiencing a strange problem. Engine is a crusader 5.7 vortec with 4bbl Holley, 315 hp, a replacement for same mercruiser engine (mercruiser exhausts and risers used so as to fit boat). Electronic ignition. Engine has 60 hours on it. Fresh water cooling, alpha I stern drive in a sea ray...
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    Eratic tach, speedometer on sea ray

    I have a 1997 Sea Ray 210 BR with 142 hrs. 315 hp 5.7 L alpha GenII, carburetor equipped. The problem is with the gauges. The tach sometimes seems to be accurate, then 10 minutes later will be reading much too high. Last time I was out, it said the motor idled at 1800 rpm, and ran to 6000 at...
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