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  1. M

    Points dwell. need help

    Re: Points dwell. need help I almost opted for that one, but Sears had this one right next to it for $34. Actron AutoTroubleShooter Digital Multimeter & Engine Analyzer - Tools - Mechanics & Auto Tools - Diagnostic Tools & Testers It has a separate switch for 4cyl on RPM and dwell, plus...
  2. M

    Inline fuel filter for an I/O engine

    40 year old boat with metal fuel tank in bow. Yes I know it needs to be replaced, it will have to be custom built though because size does not match anything I have found yet as a stock item. Top half of the boat will have to come off to get to the tank, all this will happen someday, maybe...
  3. M

    So, just how does the Mercab work

    Re: So, just how does the Mercab work Additional pages...
  4. M

    So, just how does the Mercab work

    Re: So, just how does the Mercab work I recently found United Delco Bulletin 9D-3 online in a PDF format, dated Aug 1964. Although it is a Rochester, it has an excellent primer on the operation of these carburators. I have attached the pertinent pages, and would be happy to upload the whole...
  5. M

    Firing order for 1972 mercruiser 140 I/O.

    Re: Firing order for 1972 mercruiser 140 I/O. Yea I know, sorry, just couldn't come up with a good way to explain it. Just trying to figure out why there are three different diagrams in the manual for a 4-cyl engine. Mine is oriented like #3 as far as cyl#1 in the front and the distrib on...
  6. M

    Firing order for 1972 mercruiser 140 I/O.

    First post for a long time skulker. So many thanks to all who have helped along the way in getting my old boat to this point. Second, my condolences to the family & friends of Don S, my experience with him was only through his posts, which were always insightful, and I am certain he will be...
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