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    1977 Mercury 850 crank end play tollerance ?

    Hi All, Have a 1977 Mercury 850. I pulled the upper bearing cap today to inspect the bearing. My bearing felt fine but I noticed I have some side to side movement of the crankshaft ( right at .005 ) When I re-install the bearing cap, there is no play. I'm thinking I have a problem!! I have...
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    Mercury 850 wm-5 carbs

    Hi all, Have a couple questions concerning my carbs. I have a 1977 merc 85hp #4719943 with wm-5 mercarbs. 1) Did a rebuild on carbs(not my first on this motor) and used the new white plastic floats which is supplied with needle and seat as a kit. There was a small pc of...
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    mercury square face tac

    Hi all, I am looking for a tachometer to match my other instruments. These are called square face gauges and were used on outboards thru the 70's and 80's. (a mercruser tach will not work with an ADI ignition )I have a 1977 85hp with ADI Have posted a pic of what I am looking for, and...
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    Mercury 850 Exhaust extension seal

    Hi all, I have a 1977 Merc 850 and have found and purchased a NOS lower cowl seal still in the package. This seal ( Item 13, p/n 60898) is between (Item,14 drive shaft housing plate p/n 74257A1) see Exhaust Extension Plate dwg , and (Item 1 drive shaft housing p/n 5239A4) see Drive shaft housing...
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