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    1973 Gibson help

    Glad I joined the site! Hahaha ok so when I took it out the other day it went up to 230 degrees. Could that have been because the lake water was 80 degrees or maybe a thermostat? I feel like if the water pump wasn’t working it would have gotten hotter than that. I drove it about a mile at 3000...
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    1973 Gibson help

    I read somewhere it has a duel cooling system. When I take the cap off I see antifreeze circulating. Is the a valve somewhere to switch it from raw water to the radiator or is it a duel deal that works together?
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    1973 Gibson help

    So you feel like it has a pump not an impeller?
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    1973 Gibson help

    Hey guys I’m new to the thread and need some help. I have a 36’ Gibson houseboat that has a Nissan/chrysler 6cyl diesel in it. It has been sitting for a few years and I got it fired up after a little TLC. My question is does this engine have an impeller? It has antifreeze in it and I can see it...
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