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  1. M

    dripless shaft seal help

    I'm installing a lasdrop shaft seal and I need advice on were to pull the water from to cool it. I was thinking of teeing into the hose going to the exhaust elbows but was not sure if it would have water on it at all times. When the thermostat opens and needs fresh water, will the spring...
  2. M

    propeller shaft coupling help

    Do you have to have a split coupling machined to your propeller shaft? I am going to replace the cutlass bearing in the boat and had to pull the old one off to remove the shaft. The shaft is 1 1/4" but the section that goes into the coupling is 1". the shaft had a solid coupling like a BUCK...
  3. M

    1987 merc 260 comp ski harmonic balancer

    is it ok to use a auto harmonic balancer in place of a mercruiser oem. if so does anyone have the part # for it. The oem part number is 75420. i know gm used 2 different balancers and the key was set in a different relation to the timing mark on both. the problem is the current balancer may...
  4. M

    1987 mercruiser 5.7 ski

    i have a 1987 mercruiser ski that i have upgraded the ignition from points to electronic. the old coil was external regulated through a resister wire. the new coil i bought is internal regulated. my question is if i follow the manual on replacing the resister wire that feeds the coil from the...
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