Recent content by nzahradka

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    Replacing upper crankshaft bearing

    1986 75 hp Mercury 4 cyl S/N 0A198913 There is play in the upper crankshaft bearing which is significant enough for the flywheel to rub the stator. http://www.youtube.com/watch?v=4b4rMIEvse4 Based on replies to an earlier post as well as other posts on this subject, I plan to replace the...
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    Time to replace crankshaft bearing?

    1986 75 hp Mercury 4 cyl S/N 0A198913 The old Mercury stator failed low side resistance and voltage tests. High side tests fine. There is evidence of the flywheel rubbing the stator (pics attached), and there is some play in the upper crankshaft bearing. Compression is 120 lbs on all 4...
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    Mercury Power Tune vs carb cleaner

    When cleaning a carburetor, is there an advantage to using a product like Mercury Power Tune over a standard carb cleaner made by Gunk or CRC?
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    1986 75 hp Mercury won't start - fuel issue (duplicate)

    [NOTE to Administrator - you may delete this post as I inadvertently posted it twice] I have a 1986 75 hp Merc 4 cylinder, 2 center bowl carburetors, triangle style fuel pump. I've had the motor since 2001, and it's always run fine on the top end but never has idled well. I've replaced the fuel...
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    1986 75 hp Mercury won't start - fuel issue

    I have a 1986 75 hp Merc 4 cylinder, 2 center bowl carburetors, triangle style fuel pump. I've had the motor since 2001, and it's always run fine on the top end but never has idled well. I've replaced the fuel pump diaphragm twice (2002, 2008) and saw a real improvement in starting and idle...
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    Merc 75 hp prop shaft gearcase

    I'm getting ready to open up the propeller shaft gearcase on my 1986 75 hp Merc (S/N A198913), and I'm doing some homework prior to laying parts on the floor. I'm good with a wrench and have a Clymer manual, but I've never gone past the fuel pump on this hummer. A couple of questions:<br...
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