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  1. M

    Shift Interrupt

    Recently found a loose wire on my shift interrupt. Removed the assy and resoldered the wire. The shift interupt (engine hesitation) now works ok in forward and reverse, but when I accelerate in forward the engine cuts in and out and will not accelerate. I can accelerate ok in reverse. When...
  2. M

    Shift Interrupt

    Recently found a loose wire on my shift interrupt. Removed the assy and resoldered the wire. The shift interupt (engine hesitation) now works ok in forward and reverse, but when I accelerate in forward, the engine cuts in and out and will not accelerate. I can accelerate ok in reverse. When...
  3. M

    spun coupler 3.7 mercruiser

    I have a 81 mercruiser 485 outdrive and a mostly 85 mercruiser 170, but it does have some parts from a 81 485 3.7. First question - please confirm I must pull the engine to replace the coupler (no easier way). Next, it looks like the coupler for a 81 is the one in the boat - the parts diagram...
  4. M

    Outdrive adjustments - Questions

    I used the instructions in this website http://www.mercstuff.com/howdoi.htm to adjust my shift cable and my trim limit switch on my pre-alpha outdrive. I have several questions. When adjusting the shift cable, I thought the barrel would turn on the shaft, but the barrel was pinned on the...
  5. M

    mercruiser 170 bogs down > 3700 rpm

    I recently completely rebuilt my engine. The block is from an '85 170. The head and carb are from an my old '81 485 (both have also been rebuilt). The engine starts good, idles good, and accelerates good. It will run good < 3400 rpms. When I try to go to full throttle, the engine first...
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