Recent content by Incorrigible

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    Alpha One Gear Ratio

    Mercruiser Alpha One Lower Unit. I found the listing for how many teeth each gear is supposed to have for identifying the gear ratio. Based on the data I found, the 1.5:1 should have a DRIVE gear with 20 teeth and a DRIVEN gear with 22 teeth. My questions are as follow: Is the DRIVE gear the...
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    1991 5.7l - Carb Problems

    Engine is a 1991 5.7l Issue is this: Engine quit producing full power. Tach read 4400rpm WOT in the beginning. Now reading 3600rpm MAX WOT. This is IN THE WATER and in gear while running under normal conditions. Out of gear engine will more than redline. Have checked alignment and lower...
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    Need higher pitch: how do I determine how much higher?

    Engine is a 1991 Johnson J225TXESS - Two of them on a 29' Scarab Sport The current props are three blade stainless steel. 20" pitch. Assuming they are Johnson Props (based on memory) Full throttle hits the rev limiters. The boat went through a major renovation and the weight reduction...
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    Prop pitch

    Engine is a J225TXESS (1991 V6 225hp) Currently running 20" props. Engines will EASILY push them through the water. Engines will turn at least 6500, depending on trim and loading, I can get them close to 7000 (second I see that? Throttles get pulled back) My question is this: are outboards...
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    Stuck in gear - no neutral

    Engine: J225TXESS (1990 225hp) Intermittent problem. Seems more prevalent after running the engine at high rpms for an extended period. Engine will not leave gear, shifts from forward to reverse (and vice versa) Is there any set up/adjustment to the shifter/shift cable?
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    Cleaning salt from cooling passages

    Engine is a J225TXESS (1990 225hp) The engine was in salt water before purchase. Now used in freshwater. Is there any method for flushing the engine cooling passages to remove salt buildup? Thanks
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    Wiring Diagram - Cut off switch

    Engine: J225TXESS (1990 225hp) On the wiring diagram one of the black/yellow (engine cut off/grounding/shut down) wires runs to what is labeled as the "Cut off switch" Which switch is this? Thanks
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    Shift interrupt switch is where?

    Engine: J225TXESS (1990 225hp) Trying to set up engines and running diagnostics right now. There is a "Shift Switch Elimination Test" So where is the switch? To me it would make sense that it would be in my actual shifter (remote control) no? My understanding is that the Johnson engine...
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    Engine will not shut down!!!

    Engine is a J225TXESS (1990 225hp) The ignition key, when shut off, will not turn off the engine. NOTE: The performance of the engine DECREASES, it almost seems as though it's running on less cylinders. In an effort to shut down the engine, plug wires were pulled (while shutting off the fuel...
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    Stator - Tach failure

    Engine: J225TXESS (1990 225hp) Have run diagnostics on stator which indicate the output is less than called for. Output is below the 130 volts minimum. The tach on this engine only reads to approx 2000 rpms and then returns to zero after the engine RPMs increase. Additionally, this engine...
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    Exhaust leak: Possible locations?

    Engine: J225TXESS (1990 225hp) Fearful of an exhaust leak: Exhaust comes out from under the engine cover. Have run compression, and there is no evidence that there is a head gasket leak or water entering the cylinders. Engine runs strong, but produces a lot of smoke. Also, exhaust suit...
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    Tach reading

    Engine is a J225TXESS (225hp 1990) Starboard engine tach only works below 2200rpm Any power setting above that and the tach reads zero. Any thoughts? I'm not familiar enough with the settings on a tach to know if there is an issue there. It's worth noting that the port engine tach works...
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    Exhaust leak in lower unit

    Engine is a J225TXESS (225hp 1990) There is evidence that exhaust is leaking along the mating surface between the lower unit and the midsection. There are two spots on the port side of the engine where there is a black, exhaust mark. Any ideas what would cause this? I know that in many...
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    Water in exhaust?

    Engines are J225TXESS (225hp 1990) Trying to set up twins on a two year project boat, so forgive the number of posts coming: Currently believe I'm not getting enough fuel to either engine. My question: The port engine has water coming out with the exhaust through the exhaust port found on...
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    J225 not reaching full power

    Engines: J225TXESS (1990 225hp) Starboard engine is not reaching full power. At approximately 4000rpms engine begins to stumble, then recover, then stumble again, cycling every second or two. I'm first starting to hunt down the cause. It sounds as though the engine is starving for fuel at...
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