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  1. Lowchopr

    Mercruiser 120 flapper gone. How do i get it out?

    Im assuming its down in there, no water from left side transom or prop, plenty of water coming out the right side,,,...overheating under load.....runs great. Thanks guys....
  2. Lowchopr

    1970's 120 mercruiser outdrive 1.98 gear ratio vs. 1.50

    hey guys, hope everyone is having a great weekend. i took my 18 ft mercruiser out today after changing out the outdrive. got to the lake and it would not plane, found that the gear ratio is 1.50 instead of the 1.98 i took off (because it would not shift). my question is, is there any prop size...
  3. Lowchopr

    1970's 120 mercruiser outdrive 1.98 gear ratio vs. 1.50

    hey guys, hope everyone is having a great weekend, took my 120 mercruiser 18ft beater out today, would not plane, i have installed a backup outdrive with a 1.50 gear ratio {sn 3133093} outdrive beacuse my 1.98 was not shifting at all, im wondering if there is any prop that will work with this...
  4. Lowchopr

    mercruiser 19 pitch 3800 rpm 28 mph 18 ft cuddy, do i need a 17 pitch?

    mercruiser 19 pitch 3800 rpm 28 mph 18 ft cuddy, do i need a 17 pitch? takes 30 seconds to plane out.
  5. Lowchopr

    after head gasket

    Hey guys newbie here, at least in Mercruiser outdrives I've had boats on my life mostly River jet boats and outboards. I got this boat cheap of course and I've done a lot of work to it to get it to where it's at now. But after the head gasket I'm still getting water in the oil. I see people...
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