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  1. Scott Danforth

    4.3L mercruiser with points. Timing question.

    Post the block casting number. that will dial into a generation. the 3.8 (229) liter was done in 1984 as the 4.3 was replacing it (and it was a bit late coming out in 1985). those boats built with the 3.8 in 1985 were built with old stock. the 4.3 for 1986 (starting July 1, 1985) were built...
  2. Scott Danforth

    4.3L mercruiser with points. Timing question.

    you know your motor is a one-year wonder. its a 4.3 with a 2-piece RMS
  3. Scott Danforth

    4.3L mercruiser with points. Timing question.

    its basically a stroked 4.3. the 6.2 is a GMPP rotating assembly in a Mercruiser built SBC-ish block using SBC-ish heads. the 4.5 uses the same rods as the old 3.0 and pistons from the 6.2 in a mercruiser built block with a mercruiser only crank 101.6 (4.00") bore and 91.4 (3.60") stroke yes...
  4. Scott Danforth

    4.3L mercruiser with points. Timing question.

    dont confuse your GM 4.3 with the 2015 and later mercruiser 4.5
  5. Scott Danforth

    4.3L mercruiser with points. Timing question.

    remember, the 4.3 is on the raged edge of detonation compared to the V8's My guess is the advance curve was shortened to keep the motor from eating itself.
  6. Scott Danforth

    4.3L mercruiser with points. Timing question.

    12 degrees of base timing plus 20 degrees advance is 32 degrees. That's how math and timing work
  7. Scott Danforth

    OMC 800 stringer

    Neither fleabay or Amazon have anything near OEM. Look at T&C www.sterndrive.info
  8. Scott Danforth

    Need to vent....

  9. Scott Danforth

    Panel mount VHF

    make an adapter plate and buy the panel mount adapter for the uniden.
  10. Scott Danforth

    88 Stratos Trail boat trailer

    it was most likely alkyd enamel with hardener, then baked at 140 for about 30 minutes
  11. Scott Danforth

    Need to vent....

    It's a $23 carbon canister and $60 pump. Look on rockauto.
  12. Scott Danforth

    Need to vent....

    You know the evap canister is easily replaced. The carbon pellets break loose because they are only retained by $0.005 with of plastic mesh and plug up the check valves and vent lines. Here is what I have done on 4 vehicles in the past 4- years Pull fuel tank or access pump in tank (thru...
  13. Scott Danforth

    Carb issue.

    Did the new carb come from Amazon? If so, rebuild your original carb
  14. Scott Danforth

    I got got on a new purchase

    Any fiberglass boat before 2002 should be considered full of rot Post 2002, most have stringer tubs glued together with methacrylate. Those have flex-crack issues at the glue joints Your 52 year old tri-hull will most likely have a rotten transom and stringers
  15. Scott Danforth

    OMC 800 stringer

    Check voltage at motor while it's running in lift direction. Should be 12+/- . A bad connection will have the voltage below 10
  16. Scott Danforth

    '89 Merc 3.0 - electronic ignition conversion PNs

    a good set of points will last 20+ years with normal annual maintenance. That is what I would run. I agree with Matt, Pertronix has had 3 out of 3 failures for me
  17. Scott Danforth

    Does the power trim motor have to be bleed, I removed the gimbal housing for transom repair awhile ago. Motor engages no movement of Trim Rods.

    was the drive up or down when you removed it? There are PO check valves that could be stuck is the motor running?
  18. Scott Danforth

    Volvo Penta 7.4 Gi

    I found that the specialty tools from Mercruiser are only slightly cheaper than the tools from VP. They are all expensive. overheating is lack of water flow. All marine motors that are not maintained will suffer this.
  19. Scott Danforth

    OMC 800 stringer

    all your battery cable connections to the tilt motor cleaned with 150 grit sand paper until they are shiny?
  20. Scott Danforth

    Painting Aluminum boat

    scuff the whole boat with 220 sand the chips and bare aluminum with about 150 use etching primer in the spots with bare aluminum paint the whole boat
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