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  1. J

    9.9 merc - broken drive shaft (twice now)

    we have a 9.9 merc that snapped the drive shaft (just above spline on bottom end) because we had failed to do proper maintenance for a number of years (no lube in bottom end). So we bought a new shaft and re-assembled it (added lube). Everything seemed to be settled in properly and moving...
  2. J

    Mercury 9.9 Broken Drive Shaft - is it Long/Short/XL

    Hi Everyone: The drive shaft on our 1991 Mercury 9.9 outboard snapped this past weekend. Took it apart and it measures 25". I've been looking online and the parts diagrams provides several choices with descriptions of long, short or extra long... no where can I find how to determine which...
  3. J

    Replacing Water pump for the first time - 88/89 Mercury Model 80

    Hello all: Replacing the water pump on our 88-89 Mercury 80 Outboard (3cly) for the first time and reading through the procedure in the manual. It instructs to first remove the gear housing (by following that section of manual) first (which makes sense). However, in that section, it also has...
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