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    Will Broken Bent Props Affect Speed?

    I have two props on my boat that are missing little chunks and pieces and have bends on the ends of the blades, will this noticeably decrease the acceleration and top speed of my boat? Also I am unsure of the pitch of the props it is not marked anywhere on the prop. I have two 485 mercruisers...
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    Alpha 1 Gen 1 Water Pump Problem!

    I have twin 1980 485 mercruisers with alpha 1 gen 1 outdrives I'm not sure what the replacement pump is I have ordered a Sierra 18-3320 Pump Housing kit and it did not fit, the lower housing did not fit into the bearing. Any help would be appreciated. I believe it is the Sierra 18-3317 but I...
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    Tuning a 485 Mercruiser

    I have two 485 mercruisers in my wellcraft and I want them to put out more horsepower does anyone have any mods or ideas I can use to make my engines more powerful and efficent? :confused: :)
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    485 3.7L Mercuiser overheating

    My 485 mercruiser overheats within 5 minutes of running it. Heats up past 200f. I have removed the thermostat, flushed the cooling system and refilled it with coolant. I have also changed the impeller as it was completely burnt out, I also checked under the heat exchanger cap for impeller...
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    485 Mercruiser over heating.

    I have two 485 mercruisers in my 1980 wellcraft nova 250. My one engine starts overheating after about 3-5 minutes of running it (goes up over 200f). If you run it faster the temperature goes down a bit. I have replaced the impeller (it was completely burn out), removed the thermostat, flushed...
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