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  1. R

    Poor running 3.0 Mercruiser I/O

    Poor running 3.0 Mercruiser I/O My 1986 Mercruiser I/O 3.0, 140 sounds and runs great in neutral but runs terrible when put in gear. It seems like it is starving for gas when it is under load. I have to slowly ease it up to speed, still it will not plane off. Used to run 45mph I'm lucky to get...
  2. R

    bled trim cylinders stuck out fully extended

    I have an 86 Mercruiser 3.0. The power trim sounds fine, no clicking up or down but they will not budge. I unhooked the hydrolic lines and tried the trim switches, oil squirted out. I bled the lines, pump, and cylinders completely. However the cylinders will not budge. They could not...
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