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  1. Scott Danforth

    new carb new issue

    its not your coil. I wish I had $1 for every good coil changed. I would be a billionare
  2. Scott Danforth

    454 distributer/timing problems

    DUI is iffy. have never found where they actually tested to SAE J1171 I would go voyager over DUI. I myself am running a Mallory YLM 624 as I needed/wanted the ability to adjust my timing curve.
  3. Scott Danforth

    Intermittent Backfire 4.3 EFI

    that is a GM casting number. the serial number is on a mercruiser tag riveted just above the starter. it should also be on top of your vanity cover covering the spark arrestor
  4. Scott Danforth

    new carb new issue

    my guess is you have a fuel system issue. check at the tank and check the contents of the fuel filter (replace filter element)
  5. Scott Danforth

    Mercruiser 470 Coolant Loss and Milkshake Oil

    time to drain the coolant and pressure test. should hold 15psi forever. however since we know its not, pressureize it and listen for where its leaking.
  6. Scott Danforth

    Plastic Step Repair Solution?

    problem is your plastic is toast. even not subjected to UV degradation, it had at best a 15 year life expectancy. one way or another you will need to make something new. no way to fix degraded plastic
  7. Scott Danforth

    Intermittent Backfire 4.3 EFI

    First, welcome aboard second get the factory mercruiser manual. it will help us help you if you post a bit more about your engine. TBI or MPI? best if you post the serial numbers until then you are getting generic answers you are running lean. so start with the basics what is your fuel...
  8. Scott Danforth

    1976 Apollo Tri Star fuse box location

    keep in mind it may not be a fuse block in the traditional sense that you are thinking of. it may be panel mounted circuit breakers, or glass fuse holders
  9. Scott Danforth

    panels lights at bridge no on /off switch

    most dash lights come on with the nav lights
  10. Scott Danforth

    Steam Launch parts acquired

    yes and no. steam engines require fuel to be converted with water into steam prior to the steam being harnessed and generating work internal combustion engines directly convert fuel and air into work via an enclosed explosion. both require passages, valves, timing, etc. to work. at the end...
  11. Scott Danforth

    3.7 Mercruiser, Crank no start

    if you have compression, and you have proper spark, at the proper time. all you need is fuel
  12. Scott Danforth

    E10 fuel

    by youtube certified mechanics...... LOL
  13. Scott Danforth

    3.7 Mercruiser, Crank no start

    what is the compression? did you file and re-gap the points and set dwell?
  14. Scott Danforth

    1976 Apollo Tri Star fuse box location

    look up under the dash
  15. Scott Danforth

    Cover Holes

    the back is the cover for the shift mechanism, you are seeing the top screw of two on that. the 4 on top of the gear box are the screws on top of the gear box that hold the cover on. being a new to you boat, you should have had the shift linkage cover off to pull the drive to inspect the...
  16. Scott Danforth

    Rpms jumping

    is the prop ventilating when you try to go faster?
  17. Scott Danforth

    mercruiser 898, won't run (or will barely run), at wit's end

    if the numbers are that low, you are borderline rebuild.
  18. Scott Danforth

    Engine Stalls Out

    Check your fuel vent and anti-siphon valve Did you file your points and set dwell?
  19. Scott Danforth

    Electronic Ignition and Shift Assist

    I also would also stuck with points
  20. Scott Danforth

    4.3 Temperature Sensor

    Many automotive senders are 0-90 ohm, so most likely you wont find what you want at your FLAPS, except maybe a NAPA
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