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    Calling Paul Moir

    Paul:<br /><br />What lower unit oil do I need to use in my 1971 40E71B? The Johnson manual says "OMC Type C". Do they still make this or are the modern lower unit oils by Pennzoil, Lubrimatic, etc okay to use? What's the equivalent of OMC Type C?<br /><br />Also, that's a great looking motor...
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    Proud new owner of old 1971 40E 71B 40HP

    Ok, now that I am the new owner, I have a question. I've done the usual stuff - drained lower unit (no water/metal), dropped lower unit and inspected water pump (looks brand new/very flexible)checked plugs and very good compression too. All signs that she is in good shape.<br /><br />On this...
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    What year is this?

    What year model is this? 71? Is this a reliable motor? Anything to watch out for with this model?<br /><br />Model: 40E 71B<br />Ser: J3453121<br /><br />Thanks!<br />Coleman
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    Help with Year - Recognize this motor? see pic

    Does anyone know what year model Johnson this would be? I don't have Ser# but I am curious as the owner sent me these pics and said he thought 1970... I am interested in buying the boat/motor and wanted to research some beforehand. <br /><br />If you know the year, are there any recurring...
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    1978 w/ High Compression??? What does this mean? Pic

    I am looking at a nice aluminum boat with 1978 20HP Mercury motor. The owner stated that the only drawback of the package was the motor was "of the old '78 models that had high compression". <br /><br />What does this mean in layman's terms? I am no expert and don't want to make a bad...
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