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    8.1 mercruiser temperature and smoke

    I would like to know the temperatures at which my engines should work (8.1 Horizon 370hp). At low speed (900 RPM-1100RPM) the system show me 70 degrees (158 Fahrenheit) starboard, 72 (162 Fahrenheit) degrees to port. When I start up the power at 3000rpm, the temperature rises to 77 (170...
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    Horizon 8.1- help - 370 hp sundancer 340-2006

    I would like to know the temperatures at which my engines should work (8.1 Horizon 370hp). At low speed (900 RPM-1100RPM) the system show me 70 degrees (158 Fahrenheit) starboard, 72 (162 Fahrenheit) degrees to port. When I start up the power at 3000rpm, the temperature rises to 77 (170...
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    oil replacement

    I have a sundancer 340 2006 with mercruiser 8.1 horizon and I can’t find the full synthetic oil 20w-40, but I have the following alternatives: Mercury/quicksilver 25W-40 synthetic blend VALVOLINE FULL SYNTHETIC PREMIUN BLUE SAE 5W-40 DIESEL What do you can recommend me?. Thanks in advance
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    basic help

    I bought a second hand sea ray and i am trying to start the generator as the manual shows, but nothing happens when i turn the preheat button and the start button at the left part of the pannel. In the selenoids i can read stbrd port and Gen, I dont know When i have to turn on this button (GEN)...
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